[ RadSafe ] Hot Particle Definition
Hansen, Richard
HansenRG at nv.doe.gov
Wed May 19 19:56:13 CDT 2010
Harry,
Here are some definitions of Hot Particle from the documents I have.
Note that the NRC also uses the term "discrete radioactive particles"
(DRPs) to describe "hot particles." I was not able to find a
"definitive" definition.
Radiological Control Technician Training
Site Academic Training Study Guide Phase I, part 6 of 9
DOE-HDBK-1122-2009. U.S. Department of Energy
Hot Particles
Hot particles are small, discrete, highly radioactive particles capable
of causing
extremely high doses to a localized area in a short period of time. Hot
particle
contamination may be present or be generated when contaminated systems
are
opened or when operations such as machining, cutting or grinding are
performed
on highly radioactive materials.
NRC, IE Information Notice 90-48, "Enforcement policy for Hot Particle
Exposures
http://www.nrc.gov/reading-rm/doc-collections/gen-comm/info-notices/1990
/in90048.html
"Hot particle" means a discrete radioactive fragment that is
insoluble
in water and is less than 1 mm in any dimension.
"Hot particle exposure" means an occupational dose to the skin
resulting from exposure to radiation emitted from the radionuclides
in
a hot particle on the body or on the clothing of the exposed
individual.
NRC Information Notice No. NO 86-23: EXCESSIVE SKIN EXPOSURES DUE
CONTAMINATION WITH HOT PARTICLES
http://www.nrc.gov/reading-rm/doc-collections/gen-comm/info-notices/1986
/in86023.html
Hot particles are small (in some cases microscopic)
particles of radioactive material with a high specific activity
NRC
[Federal Register: July 12, 2001 (Volume 66, Number 134)]
[Page 36502-36509] NUCLEAR REGULATORY COMMISSION
10 CFR PART 20, RIN 3150-AG25
Revision of the Skin Dose Limit
http://nrc-stp.ornl.gov/frdocs/66fr36502.pdf
With the installation in the mid and late 1980s of very sensitive portal
monitors,
many nuclear power plants detected contamination of individuals and
their clothing by
small, usually microscopic, highly radioactive beta or beta-gamma
emitting particles
having relatively high specific activity. These particles, known as
"discrete radioactive
particles" (DRPs) and sometimes "hot particles," most commonly contain
60Co or
fission products.
NRC REGULATORY ISSUE SUMMARY 2002-10, REVISION OF THE SKIN DOSE LIMIT IN
10 CFR PART 20
http://www.nrc.gov/reading-rm/doc-collections/gen-comm/reg-issues/2002/r
i02010.pdf
Hot particles are very small, barely visible, particles of radioactive
material that are often electrically charged, and tend to cling to the
skin or to protective clothing. Some of these particles have a high
specific activity, and are capable of delivering shallow dose at a rate
that could cause the shallow dose equivalent limit to be exceeded within
a few hours or sometimes in less time. Hot particles have been found at
both nuclear reactor facilities and at nuclear materials facilities.
I do not have a copy of the following NCRP reports, but I think they
have definitions of "hot particle."
Limit for Exposure to "Hot Particles," National Council on Radiation
Protection and Measurements (NCRP) Report No. 106, December 31,
1989.
NCRP Report No. 130, "Biological Effects and Exposure Limits for
"Hot-Particles," (1999)
Best regards,
Rick Hansen
Senior Scientist
Counter Terrorism Operations Support Program
National Security Technologies, LLC, for the U.S. Dept of Energy
P.O. Box 98521, M/S NLV128, Las Vegas, NV 89192-8521
hansenrg at nv.doe.gov
www.ctosnnsa.org
Date: Tue, 18 May 2010 17:09:47 -0700
From: "Neill Stanford" <stanford at stanforddosimetry.com>
Subject: Re: [ RadSafe ] Hot Particle Definition
To: "'Harry Reynolds'" <hreynolds at energysolutions.com>,
<radsafe at agni.phys.iit.edu>
Message-ID: <019801caf6e7$9870fba0$c952f2e0$@com>
Content-Type: text/plain; charset="us-ascii"
Harry,
Without digging up references, I don't think there is a precise
definition.
It is a generic/qualitative term. Official documents usually say
something
like "Highly radioactive ("Hot") particle"
If you can't see it, but it is localized and sends your meters off-scale
then you can call it a hot particle. They became famous in NPP's,
typically
a result of compromised nuclear fuel, measure in single micrometers or
even
nanometers, and are big beta emitters with big dose rates.
The real issues are: knowing that they exist, how to look for them and
what
to do about calculating dose when you find one.
For more info, I'd Google "Radioactive hot particle NRC"
Sincerely,
Neill Stanford, CHP
Stanford Dosimetry, LLC
stanford at stanforddosimetry.com
www.stanforddosimetry.com
(360) 733-7367 (V)
(360) 933 1794 (F)
-----Original Message-----
From: Harry Reynolds [mailto:hreynolds at energysolutions.com]
Sent: Tuesday, May 18, 2010 1:30 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Hot Particle Definition
Can someone provide me with or direct me to an accepted and clear
definition of a "hot particle"?
Thanks
Harry Reynolds
ASRSO
ENERGYSOLUTIONS
801-649-2219 Desk
801-349-9036 Cell
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
------------------------------
Message: 6
Date: Wed, 19 May 2010 08:08:10 -0400
From: "Bailey, Pete" <Pete.Bailey at fpl.com>
Subject: Re: [ RadSafe ] Cardiolite Fate
To: 'Dan W McCarn' <hotgreenchile at gmail.com>,
"radsafe at agni.phys.iit.edu" <radsafe at agni.phys.iit.edu>
Message-ID:
<ED60766799A72C4DA949BA8054300B4421564E5BFC at GOXEXVS04.fplu.fpl.com>
Content-Type: text/plain; charset="us-ascii"
Cardiolite use sohould be followed with Budlite to promote dilution and
flushing . . .
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dan W McCarn
Sent: Tuesday, May 18, 2010 6:19 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a
cardiac stress test. The dose was 3 mCi Tl-201 and 20 mCi "Cardiolite"
Tc-99m for imaging. By the time I got home, I was quite radioactive,
with
my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
According to the information that I received, the test amounts to a 3.45
REM
total effective dose.
Should I be avoiding my girlfriend for the next week or two? She works
at
Los Alamos and I don't want to "contaminate" her.
The good news is that no problems were found!
Comments?
Dan ii
--
Dan W McCarn, Geologist
108 Sherwood Drive
Los Alamos, NM 87544-3425
+1-505-310-3922 (Mobile - New Mexico)
<mailto:HotGreenChile at gmail.com> <mailto:HotGreenChile at gmail.com>
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
------------------------------
Message: 7
Date: Wed, 19 May 2010 08:24:22 -0400
From: "Falo, Gerald A Dr CIV USA MEDCOM PHC" <Jerry.Falo at us.army.mil>
Subject: Re: [ RadSafe ] Hot Particle Definition (UNCLASSIFIED)
To: "Harry Reynolds" <hreynolds at energysolutions.com>,
<radsafe at agni.phys.iit.edu>
Message-ID:
<10ACCA92BC30C84F8D61A1EFE74ADE170877ED0B at AMEDMLNARMC135.amed.ds.army.mi
l>
Content-Type: text/plain; charset="us-ascii"
Classification: UNCLASSIFIED
Caveats: NONE
Harry,
I would try NCRP Report No. 130, Biological Effects and Exposure Limits
for "Hot Particles." I skimmed it and found for the purposes of the
report "hot particles are considered to be >10 um but < 3,000 um in any
dimension." (page 3, near the bottom) Chapter 2 is titled, "Origin and
Nature of Hot Particles."
Jerry
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Neill Stanford
Sent: Tuesday, May 18, 2010 8:10 PM
To: 'Harry Reynolds'; radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Hot Particle Definition
Harry,
Without digging up references, I don't think there is a precise
definition.
It is a generic/qualitative term. Official documents usually say
something
like "Highly radioactive ("Hot") particle"
If you can't see it, but it is localized and sends your meters off-scale
then you can call it a hot particle. They became famous in NPP's,
typically
a result of compromised nuclear fuel, measure in single micrometers or
even
nanometers, and are big beta emitters with big dose rates.
The real issues are: knowing that they exist, how to look for them and
what
to do about calculating dose when you find one.
For more info, I'd Google "Radioactive hot particle NRC"
Sincerely,
Neill Stanford, CHP
Stanford Dosimetry, LLC
stanford at stanforddosimetry.com
www.stanforddosimetry.com
(360) 733-7367 (V)
(360) 933 1794 (F)
-----Original Message-----
From: Harry Reynolds [mailto:hreynolds at energysolutions.com]
Sent: Tuesday, May 18, 2010 1:30 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Hot Particle Definition
Can someone provide me with or direct me to an accepted and clear
definition of a "hot particle"?
Thanks
Harry Reynolds
ASRSO
ENERGYSOLUTIONS
801-649-2219 Desk
801-349-9036 Cell
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
Classification: UNCLASSIFIED
Caveats: NONE
------------------------------
Message: 8
Date: Wed, 19 May 2010 08:28:26 -0400
From: "Glenn R. Marshall" <GRMarshall at philotechnics.com>
Subject: Re: [ RadSafe ] Cardiolite Fate
To: Dan W McCarn <hotgreenchile at gmail.com>,
"radsafe at agni.phys.iit.edu" <radsafe at agni.phys.iit.edu>
Message-ID:
<597B927DD5BB0840957B5A8D9FBC8FDD0E1C66A426 at TNOR-FPE3.philotechnics.int>
Content-Type: text/plain; charset="us-ascii"
Several years ago in a prior job we had a worker set off the alarm on
the PCM at our facility, showing facial contamination. He swore that he
hadn't been in any production areas but merely walked through the
building and had to monitor on the way out. After a lengthy discussion,
he remembered his wife had some medical procedure done earlier that day
and the doctor told them not to have any contact for a few days. But he
kissed his wife on his way out the door as always. So we had him spit
in a beaker and ran a gamma spec. I-131. He had to work in the office
until he cleared the monitors. The poor guy was nicknamed Hotlips ever
since. Quite embarrassing, although it could have been much more so if
you know what I mean....
So the moral of the story is this:
If your significant other can take a joke, get radioactive and fool
around. Then send her to work in a radiological facility.
Glenn Marshall, CHP, RRPT
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dan W McCarn
Sent: Tuesday, May 18, 2010 6:19 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a
cardiac stress test. The dose was 3 mCi Tl-201 and 20 mCi "Cardiolite"
Tc-99m for imaging. By the time I got home, I was quite radioactive,
with
my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
According to the information that I received, the test amounts to a 3.45
REM
total effective dose.
Should I be avoiding my girlfriend for the next week or two? She works
at
Los Alamos and I don't want to "contaminate" her.
The good news is that no problems were found!
Comments?
Dan ii
--
Dan W McCarn, Geologist
108 Sherwood Drive
Los Alamos, NM 87544-3425
+1-505-310-3922 (Mobile - New Mexico)
<mailto:HotGreenChile at gmail.com> <mailto:HotGreenChile at gmail.com>
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
------------------------------
Message: 9
Date: Wed, 19 May 2010 08:10:29 -0500
From: "Hoffman, Daniel E" <Daniel.Hoffman at covidien.com>
Subject: Re: [ RadSafe ] Cardiolite Fate
To: "Glenn R. Marshall" <GRMarshall at philotechnics.com>, "Dan W McCarn"
<hotgreenchile at gmail.com>, <radsafe at agni.phys.iit.edu>
Message-ID:
<CF8B9734A1EEE14EB9085CAD0F6292C4058DD6B4 at TAHAZE-BE01.thcg.net>
Content-Type: text/plain; charset="us-ascii"
All -- It is well documented that I-131 administration can cause direct
transfer of contamination from one individual to another; however, I
have not seen nor heard of such an instance from patients administered
with Tc-99m or Tl-201. Our experience is that it may take several days;
even up to several weeks after a Tl-201 imaging procedure for an
individual to clear a portal monitor, depending on the dose and type of
procedure. Our practice is to keep folks out of areas with potential
surface contamination issues until they can clear the monitors.
Dan Hoffman
Daniel E. Hoffman, CHP, CSP
Radiation Safety Officer
Covidien
2703 Wagner Place
Maryland Heights, MO 63043
314-654-7906 (office)
314-625-1881 (cell)
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Glenn R.
Marshall
Sent: Wednesday, May 19, 2010 7:28 AM
To: Dan W McCarn; radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Cardiolite Fate
Several years ago in a prior job we had a worker set off the alarm on
the PCM at our facility, showing facial contamination. He swore that he
hadn't been in any production areas but merely walked through the
building and had to monitor on the way out. After a lengthy discussion,
he remembered his wife had some medical procedure done earlier that day
and the doctor told them not to have any contact for a few days. But he
kissed his wife on his way out the door as always. So we had him spit
in a beaker and ran a gamma spec. I-131. He had to work in the office
until he cleared the monitors. The poor guy was nicknamed Hotlips ever
since. Quite embarrassing, although it could have been much more so if
you know what I mean....
So the moral of the story is this:
If your significant other can take a joke, get radioactive and fool
around. Then send her to work in a radiological facility.
Glenn Marshall, CHP, RRPT
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dan W McCarn
Sent: Tuesday, May 18, 2010 6:19 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a cardiac stress test. The dose was 3 mCi Tl-201 and 20 mCi
"Cardiolite"
Tc-99m for imaging. By the time I got home, I was quite radioactive,
with my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
According to the information that I received, the test amounts to a 3.45
REM total effective dose.
Should I be avoiding my girlfriend for the next week or two? She works
at Los Alamos and I don't want to "contaminate" her.
The good news is that no problems were found!
Comments?
Dan ii
--
Dan W McCarn, Geologist
108 Sherwood Drive
Los Alamos, NM 87544-3425
+1-505-310-3922 (Mobile - New Mexico)
<mailto:HotGreenChile at gmail.com> <mailto:HotGreenChile at gmail.com>
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
------------------------------
Message: 10
Date: Wed, 19 May 2010 09:45:52 -0400
From: blreider at aol.com
Subject: Re: [ RadSafe ] Cardiolite Fate
To: hotgreenchile at gmail.com, radsafe at agni.phys.iit.edu
Message-ID: <8CCC570BB13D7E7-2298-1E57 at webmail-m097.sysops.aol.com>
Content-Type: text/plain; charset="us-ascii"
Dan,
A while back there were a whole series of presentations on wierd
contamination phenonon. Someone gave a paper how the heart stress-test
drugs given to the man increase in spouses during, ahem - how should I
say this - marital relations. Since you are not married to her it
should be no problem, especially of course if you are religeous. :o)
An HP who did a talk at that meeting was I think named Dr. Richard Brake
of LANL, but his talk was on a plutonium contamination case.
Perhaps the best thing would be for her to tell the Rad Group at the lab
that she is in contact with someone who has had these tests and ask them
for their nput. Secondary contamination may create all sorts of extra
work for the HP group.
Hope you passed the tests.
Barbara Reider, CHP
-----Original Message-----
From: Dan W McCarn <hotgreenchile at gmail.com>
To: radsafe at agni.phys.iit.edu
Sent: Tue, May 18, 2010 6:18 pm
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a
ardiac stress test. The dose was 3 mCi Tl-201 and 20 mCi "Cardiolite"
c-99m for imaging. By the time I got home, I was quite radioactive,
with
y Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
ccording to the information that I received, the test amounts to a 3.45
REM
otal effective dose.
Should I be avoiding my girlfriend for the next week or two? She works
at
os Alamos and I don't want to "contaminate" her.
The good news is that no problems were found!
Comments?
Dan ii
--
an W McCarn, Geologist
08 Sherwood Drive
os Alamos, NM 87544-3425
1-505-310-3922 (Mobile - New Mexico)
<mailto:HotGreenChile at gmail.com> <mailto:HotGreenChile at gmail.com>
otGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
_______________________________________________
ou are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
adSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
ttp://health.phys.iit.edu
------------------------------
Message: 11
Date: Wed, 19 May 2010 07:30:25 -0600
From: "Ed Stroud" <estroud at smtpgate.dphe.state.co.us>
Subject: Re: [ RadSafe ] Cardiolite Fate
To: <radsafe at agni.phys.iit.edu>, "Daniel E Hoffman"
<Daniel.Hoffman at covidien.com>, "Dan W McCarn"
<hotgreenchile at gmail.com>, "Glenn R. Marshall"
<GRMarshall at philotechnics.com>
Message-ID: <4BF39391.F70D.0038.0 at cdphe.state.co.us>
Content-Type: text/plain; charset=US-ASCII
As an inspector, I've observed many treadmills and waiting rooms in
cardiology suites contaminated with small amounts of Tc-99m. However,
it's not clear if the contamination is coming from within the patient or
a minor spill during administration.
Ed Stroud, Compliance Lead
Radioactive Materials Unit
Colorado Department of Public Health and Environment
>>> "Hoffman, Daniel E" <Daniel.Hoffman at covidien.com> 5/19/2010 7:10 AM
>>>
All -- It is well documented that I-131 administration can cause direct
transfer of contamination from one individual to another; however, I
have not seen nor heard of such an instance from patients administered
with Tc-99m or Tl-201. Our experience is that it may take several days;
even up to several weeks after a Tl-201 imaging procedure for an
individual to clear a portal monitor, depending on the dose and type of
procedure. Our practice is to keep folks out of areas with potential
surface contamination issues until they can clear the monitors.
Dan Hoffman
Daniel E. Hoffman, CHP, CSP
Radiation Safety Officer
Covidien
2703 Wagner Place
Maryland Heights, MO 63043
314-654-7906 (office)
314-625-1881 (cell)
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Glenn R.
Marshall
Sent: Wednesday, May 19, 2010 7:28 AM
To: Dan W McCarn; radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Cardiolite Fate
Several years ago in a prior job we had a worker set off the alarm on
the PCM at our facility, showing facial contamination. He swore that he
hadn't been in any production areas but merely walked through the
building and had to monitor on the way out. After a lengthy discussion,
he remembered his wife had some medical procedure done earlier that day
and the doctor told them not to have any contact for a few days. But he
kissed his wife on his way out the door as always. So we had him spit
in a beaker and ran a gamma spec. I-131. He had to work in the office
until he cleared the monitors. The poor guy was nicknamed Hotlips ever
since. Quite embarrassing, although it could have been much more so if
you know what I mean....
So the moral of the story is this:
If your significant other can take a joke, get radioactive and fool
around. Then send her to work in a radiological facility.
Glenn Marshall, CHP, RRPT
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dan W McCarn
Sent: Tuesday, May 18, 2010 6:19 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a cardiac stress test. The dose was 3 mCi Tl-201 and 20 mCi
"Cardiolite"
Tc-99m for imaging. By the time I got home, I was quite radioactive,
with my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
According to the information that I received, the test amounts to a 3.45
REM total effective dose.
Should I be avoiding my girlfriend for the next week or two? She works
at Los Alamos and I don't want to "contaminate" her.
The good news is that no problems were found!
Comments?
Dan ii
--
Dan W McCarn, Geologist
108 Sherwood Drive
Los Alamos, NM 87544-3425
+1-505-310-3922 (Mobile - New Mexico)
<mailto:HotGreenChile at gmail.com> <mailto:HotGreenChile at gmail.com>
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
------------------------------
Message: 12
Date: Wed, 19 May 2010 09:02:01 -0500
From: Doug Aitken <jdaitken at sugar-land.oilfield.slb.com>
Subject: Re: [ RadSafe ] Cardiolite Fate
To: blreider at aol.com, hotgreenchile at gmail.com,
radsafe at agni.phys.iit.edu
Message-ID: <002401caf75b$dc957f30$95c07d90$@oilfield.slb.com>
Content-Type: text/plain; charset=us-ascii
Perhaps as a result of the good result of the test relieving the patient
of
worry that he might have a cardiac event, rather than the actual
radiation
dose?
I know all about hormesis, but this instant improvement in performance
is
likely from another trigger.....
;~)
Regards
Doug
PS to Dan: Glad to hear the stress test worked out OK!
___________________________________
Doug Aitken
QHSE Advisor
D&M Operations Support
jdaitken at sugar-land.oilfield.slb.com
(alternate: doug.aitken at slb.com)
Phone (cell): 713-562-8585
Mail: c/o Therese Wigzell,
Schlumberger,
Drilling & Measurements HQ,
300 Schlumberger Drive, MD15,
Sugar Land, Texas 77478
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of
blreider at aol.com
Sent: Wednesday, May 19, 2010 8:46 AM
To: hotgreenchile at gmail.com; radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Cardiolite Fate
Dan,
A while back there were a whole series of presentations on wierd
contamination phenonon. Someone gave a paper how the heart stress-test
drugs given to the man increase in spouses during, ahem - how should I
say
this - marital relations. Since you are not married to her it should be
no
problem, especially of course if you are religeous. :o) An HP who did
a
talk at that meeting was I think named Dr. Richard Brake of LANL, but
his
talk was on a plutonium contamination case.
Perhaps the best thing would be for her to tell the Rad Group at the lab
that she is in contact with someone who has had these tests and ask them
for
their nput. Secondary contamination may create all sorts of extra work
for
the HP group.
Hope you passed the tests.
Barbara Reider, CHP
-----Original Message-----
From: Dan W McCarn <hotgreenchile at gmail.com>
To: radsafe at agni.phys.iit.edu
Sent: Tue, May 18, 2010 6:18 pm
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a
ardiac stress test. The dose was 3 mCi Tl-201 and 20 mCi "Cardiolite"
c-99m for imaging. By the time I got home, I was quite radioactive,
with
y Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
ccording to the information that I received, the test amounts to a 3.45
REM
otal effective dose.
Should I be avoiding my girlfriend for the next week or two? She works
at
os Alamos and I don't want to "contaminate" her.
The good news is that no problems were found!
Comments?
Dan ii
--
an W McCarn, Geologist
08 Sherwood Drive
os Alamos, NM 87544-3425
1-505-310-3922 (Mobile - New Mexico)
<mailto:HotGreenChile at gmail.com> <mailto:HotGreenChile at gmail.com>
otGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
_______________________________________________
ou are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
adSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
ttp://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
------------------------------
Message: 13
Date: Wed, 19 May 2010 16:26:28 +0200
From: <franz.schoenhofer at chello.at>
Subject: Re: [ RadSafe ] Liquid scintillation Standards
To: "McKinnon, Michael" <MckinnMD at nv.doe.gov>,
radsafe at health.phys.iit.edu
Message-ID: <24476419.1274279189282.JavaMail.root at viefep18>
Content-Type: text/plain; charset=utf-8
Hi,
On my desk here at the University of Sevilla (Spain) stand three bottles
of scintillation cocktails, received a few days ago. One of them - from
PerkinElmer, which bought Packard - is made with xylene, the others with
DIN (diisopropyl naphthalene). So the conclusion is, that xylene is
still used. You may check the websites of PerkinElmer or Zinnser where
you find information about the solvents used in cocktails.
On the data sheets of the standards not only the activity is given, but
also the chemical composition.
Best regards,
Franz
---- "McKinnon schrieb:
> We have several old Packard liquid scintillation standards (H-3, C-14,
> blank) that require disposal. Does anyone know if there was a date
> after which hazardous organics (toluene, xylene) were no longer used?
>
>
>
>
>
> Michael D. McKinnon, CHP, PE
>
> Senior Scientist
>
> Waste Generator Services
>
> (702)295-1406
>
>
>
> _______________________________________________
> You are currently subscribed to the RadSafe mailing list
>
> Before posting a message to RadSafe be sure to have read and
understood the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
>
> For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
------------------------------
Message: 14
Date: Wed, 19 May 2010 10:56:30 -0400
From: "Bill DeForest" <billd at prophysics.com>
Subject: Re: [ RadSafe ] Cardiolite Fate
To: "'Glenn R. Marshall'" <GRMarshall at philotechnics.com>, "'Dan W
McCarn'" <hotgreenchile at gmail.com>, <radsafe at agni.phys.iit.edu>
Message-ID: <014f01caf763$77bba690$6732f3b0$@com>
Content-Type: text/plain; charset="us-ascii"
That kind of casual contamination would only be a problem for I-131.
Tc-99m and Tl-201 are eliminated trough urine, not spit, sweat, etc.
like
I-131. So contamination is almost impossible for most people, draw your
own
conclusions ;) She will get a little dose being nearby you but at a
rate
of a couple mR per hr, I wouldn't worry too much, you will be decaying
down
fast all the time.
Bill DeForest, CHP, DABR
President, ProPhysics Innovations, Inc.
billd at prophysics.com
400 Dominion Drive, #109 Morrisville, NC 27560
(800) 835-3615
(919) 465-2545
Fax: (919) 465-2544
www.prophysics.com
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Glenn R.
Marshall
Sent: Wednesday, May 19, 2010 8:28 AM
To: Dan W McCarn; radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Cardiolite Fate
Several years ago in a prior job we had a worker set off the alarm on
the
PCM at our facility, showing facial contamination. He swore that he
hadn't
been in any production areas but merely walked through the building and
had
to monitor on the way out. After a lengthy discussion, he remembered
his
wife had some medical procedure done earlier that day and the doctor
told
them not to have any contact for a few days. But he kissed his wife on
his
way out the door as always. So we had him spit in a beaker and ran a
gamma
spec. I-131. He had to work in the office until he cleared the
monitors.
The poor guy was nicknamed Hotlips ever since. Quite embarrassing,
although
it could have been much more so if you know what I mean....
So the moral of the story is this:
If your significant other can take a joke, get radioactive and fool
around.
Then send her to work in a radiological facility.
Glenn Marshall, CHP, RRPT
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dan W McCarn
Sent: Tuesday, May 18, 2010 6:19 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a
cardiac stress test. The dose was 3 mCi Tl-201 and 20 mCi "Cardiolite"
Tc-99m for imaging. By the time I got home, I was quite radioactive,
with
my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
According to the information that I received, the test amounts to a 3.45
REM
total effective dose.
Should I be avoiding my girlfriend for the next week or two? She works
at
Los Alamos and I don't want to "contaminate" her.
The good news is that no problems were found!
Comments?
Dan ii
--
Dan W McCarn, Geologist
108 Sherwood Drive
Los Alamos, NM 87544-3425
+1-505-310-3922 (Mobile - New Mexico)
<mailto:HotGreenChile at gmail.com> <mailto:HotGreenChile at gmail.com>
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
__________ Information from ESET NOD32 Antivirus, version of virus
signature
database 5125 (20100518) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
__________ Information from ESET NOD32 Antivirus, version of virus
signature
database 5128 (20100519) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
------------------------------
Message: 15
Date: Wed, 19 May 2010 11:01:54 -0400
From: "Bill DeForest" <billd at prophysics.com>
Subject: Re: [ RadSafe ] Cardiolite Fate
To: "'Ed Stroud'" <estroud at smtpgate.dphe.state.co.us>,
<radsafe at agni.phys.iit.edu>, "'Daniel E Hoffman'"
<Daniel.Hoffman at covidien.com>, "'Dan W McCarn'"
<hotgreenchile at gmail.com>, "'Glenn R. Marshall'"
<GRMarshall at philotechnics.com>
Message-ID: <015701caf764$38da2090$aa8e61b0$@com>
Content-Type: text/plain; charset="us-ascii"
In those cases, the contamination always comes from a drop of leakage
during
administration
Bill DeForest, CHP, DABR
President, ProPhysics Innovations, Inc.
billd at prophysics.com
400 Dominion Drive, #109 Morrisville, NC 27560
(800) 835-3615
(919) 465-2545
Fax: (919) 465-2544
www.prophysics.com
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Ed Stroud
Sent: Wednesday, May 19, 2010 9:30 AM
To: radsafe at agni.phys.iit.edu; Daniel E Hoffman; Dan W McCarn; Glenn R.
Marshall
Subject: Re: [ RadSafe ] Cardiolite Fate
As an inspector, I've observed many treadmills and waiting rooms in
cardiology suites contaminated with small amounts of Tc-99m. However,
it's
not clear if the contamination is coming from within the patient or a
minor
spill during administration.
Ed Stroud, Compliance Lead
Radioactive Materials Unit
Colorado Department of Public Health and Environment
>>> "Hoffman, Daniel E" <Daniel.Hoffman at covidien.com> 5/19/2010 7:10 AM
>>>
All -- It is well documented that I-131 administration can cause direct
transfer of contamination from one individual to another; however, I
have not seen nor heard of such an instance from patients administered
with Tc-99m or Tl-201. Our experience is that it may take several days;
even up to several weeks after a Tl-201 imaging procedure for an
individual to clear a portal monitor, depending on the dose and type of
procedure. Our practice is to keep folks out of areas with potential
surface contamination issues until they can clear the monitors.
Dan Hoffman
Daniel E. Hoffman, CHP, CSP
Radiation Safety Officer
Covidien
2703 Wagner Place
Maryland Heights, MO 63043
314-654-7906 (office)
314-625-1881 (cell)
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Glenn R.
Marshall
Sent: Wednesday, May 19, 2010 7:28 AM
To: Dan W McCarn; radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Cardiolite Fate
Several years ago in a prior job we had a worker set off the alarm on
the PCM at our facility, showing facial contamination. He swore that he
hadn't been in any production areas but merely walked through the
building and had to monitor on the way out. After a lengthy discussion,
he remembered his wife had some medical procedure done earlier that day
and the doctor told them not to have any contact for a few days. But he
kissed his wife on his way out the door as always. So we had him spit
in a beaker and ran a gamma spec. I-131. He had to work in the office
until he cleared the monitors. The poor guy was nicknamed Hotlips ever
since. Quite embarrassing, although it could have been much more so if
you know what I mean...
So the moral of the story is this:
If your significant other can take a joke, get radioactive and fool
around. Then send her to work in a radiological facility.
Glenn Marshall, CHP, RRPT
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dan W McCarn
Sent: Tuesday, May 18, 2010 6:19 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a cardiac stress test. The dose was 3 mCi Tl-201 and 20 mCi
"Cardiolite"
Tc-99m for imaging. By the time I got home, I was quite radioactive,
with my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
According to the information that I received, the test amounts to a 3.45
REM total effective dose.
Should I be avoiding my girlfriend for the next week or two? She works
at Los Alamos and I don't want to "contaminate" her.
The good news is that no problems were found!
Comments?
Dan ii
--
Dan W McCarn, Geologist
108 Sherwood Drive
Los Alamos, NM 87544-3425
+1-505-310-3922 (Mobile - New Mexico)
<mailto:HotGreenChile at gmail.com> <mailto:HotGreenChile at gmail.com>
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
__________ Information from ESET NOD32 Antivirus, version of virus
signature
database 5125 (20100518) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
__________ Information from ESET NOD32 Antivirus, version of virus
signature
database 5128 (20100519) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
------------------------------
Message: 16
Date: Wed, 19 May 2010 11:30:07 -0400 (EDT)
From: "csimmons at csimmonslaw.com" <csimmons at csimmonslaw.com>
Subject: [ RadSafe ] Mexico NORM regulations
To: radsafe at agni.phys.iit.edu
Message-ID:
<20951430.13814.1274283007132.JavaMail.vpopmail at oxapp7.mgt.hosting.dc2.n
etsol.com>
Content-Type: text/plain; charset=UTF-8
Dear Radsafers:
I am seeking information, or preferably a contact at CNSNS, regarding
the
regulation of naturally occurring radioactive materials (NORM) in
Mexico.
The materials in issue are NORM-containing minerals at 1 - 4 Bq/g
activity
concentration of natural U and Th.
Thank you for any information.
Charles Simmons
------------------------------
Message: 17
Date: Wed, 19 May 2010 15:35:17 +0000 (UTC)
From: radbloom at comcast.net
Subject: Re: [ RadSafe ] Cardiolite Fate
To: Bill DeForest <billd at prophysics.com>
Cc: radsafe at agni.phys.iit.edu, "Glenn R. Marshall"
<GRMarshall at philotechnics.com>, Dan W McCarn
<hotgreenchile at gmail.com>
Message-ID:
<861908202.30649901274283317259.JavaMail.root at sz0034a.westchester.pa.mai
l.comcast.net>
Content-Type: text/plain; charset=utf-8
And on that note, I suggest sitting when eliminating to reduce
unintentional contamination of the bathroom.? The resident engineer on
one job was quite surprised at how much "spray" there was.?
Contamination was all around the toilet area...? Also, like Mom said,
hand-washing is also important.
Enjoy your decaying... so happy to learn the test revealed no problems.
Cindy Bloom
----- Original Message -----
From: "Bill DeForest" <billd at prophysics.com>
To: "Glenn R. Marshall" <GRMarshall at philotechnics.com>, "Dan W McCarn"
<hotgreenchile at gmail.com>, radsafe at agni.phys.iit.edu
Sent: Wednesday, May 19, 2010 10:56:30 AM GMT -05:00 US/Canada Eastern
Subject: Re: [ RadSafe ] Cardiolite Fate
That kind of casual contamination would only be a problem for I-131.
Tc-99m and Tl-201 are eliminated trough urine, not spit, sweat, etc.
like
I-131. ?So contamination is almost impossible for most people, draw your
own
conclusions ;) ? She will get a little dose being nearby you but at a
rate
of a couple mR per hr, I wouldn't worry too much, you will be decaying
down
fast all the time.
Bill DeForest, CHP, DABR
President, ProPhysics Innovations, Inc.
billd at prophysics.com
400 Dominion Drive, #109 Morrisville, NC 27560
(800) 835-3615
(919) 465-2545
Fax: (919) 465-2544
www.prophysics.com
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Glenn R.
Marshall
Sent: Wednesday, May 19, 2010 8:28 AM
To: Dan W McCarn; radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Cardiolite Fate
Several years ago in a prior job we had a worker set off the alarm on
the
PCM at our facility, showing facial contamination. ?He swore that he
hadn't
been in any production areas but merely walked through the building and
had
to monitor on the way out. ?After a lengthy discussion, he remembered
his
wife had some medical procedure done earlier that day and the doctor
told
them not to have any contact for a few days. ?But he kissed his wife on
his
way out the door as always. ?So we had him spit in a beaker and ran a
gamma
spec. ?I-131. ?He had to work in the office until he cleared the
monitors.
The poor guy was nicknamed Hotlips ever since. ?Quite embarrassing,
although
it could have been much more so if you know what I mean....
So the moral of the story is this:
If your significant other can take a joke, get radioactive and fool
around.
Then send her to work in a radiological facility.
?
Glenn Marshall, CHP, RRPT
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dan W McCarn
Sent: Tuesday, May 18, 2010 6:19 PM
To: radsafe at agni.phys.iit.edu
Subject: [ RadSafe ] Cardiolite Fate
Dear Group:
?
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail
during a
cardiac stress test. ?The dose was 3 mCi Tl-201 and 20 mCi "Cardiolite"
Tc-99m for imaging. ?By the time I got home, I was quite radioactive,
with
my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters.
According to the information that I received, the test amounts to a 3.45
REM
total effective dose.
?
Should I be avoiding my girlfriend for the next week or two? ?She works
at
Los Alamos and I don't want to "contaminate" her.
?
The good news is that no problems were found!
?
Comments?
?
Dan ii
?
--
Dan W McCarn, Geologist
108 Sherwood Drive
Los Alamos, NM 87544-3425
+1-505-310-3922 (Mobile - New Mexico)
?<mailto:HotGreenChile at gmail.com> ?<mailto:HotGreenChile at gmail.com>
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
?
?
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the
RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit:
http://health.phys.iit.edu
__________ Information from ESET NOD32 Antivirus, version of virus
signature
database 5125 (20100518) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
?
__________ Information from ESET NOD32 Antivirus, version of virus
signature
database 5128 (20100519) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
?
_______________________________________________
You are currently subscribed to the RadSafe mailing list
Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://health.phys.iit.edu/radsaferules.html
For information on how to subscribe or unsubscribe and other settings
visit: http://health.phys.iit.edu
------------------------------
_______________________________________________
RadSafe mailing list
RadSafe at health.phys.iit.edu
http://health.phys.iit.edu/cgi-bin/mailman/listinfo/radsafe
End of RadSafe Digest, Vol 306, Issue 1
***************************************
More information about the RadSafe
mailing list