[ RadSafe ] RE: radsafe Digest, Vol 76, Issue 2
Hansen, Richard
HansenRG at nv.doe.gov
Wed Jan 10 19:55:47 CST 2007
Thank you Robert
Best Regards,
Rick Hansen
Senior Scientist
Counter Terrorism Operations Support Program
Office: (702) 295-7813 Cell: (702) 630-1131 Fax: (702) 295-5555
National Security Technologies (NSTec), PO Box 98521, MS CF 128, Las Vegas, NV 89193-8521
http://www.nv.doe.gov/nationalsecurity/homelandsecurity/responder.htm
Shipping Address:
National Securities Technologies, 2621 Losee Rd MS CF 128, North Las Vegas, NV 89030
"We shall not fail or falter; we shall not weaken or tire...Give us the tools and we will finish the job."
Sir Winston Churchill
-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf Of radsafe-request at radlab.nl
Sent: Wednesday, January 10, 2007 4:22 PM
To: radsafe at radlab.nl
Subject: radsafe Digest, Vol 76, Issue 2
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Today's Topics:
1. First Announcement: The 2007 Dosimetry & Records Symposium
(Sandy Perle)
2. Re: (Taiwan Apts) NSWS exposed lived longer (0.76 mortality
rate!) (howard long)
3. Victoreen Corotron Regulator Tubes' Catalog? (J. Marshall Reber)
4. Re: Victoreen Corotron Regulator Tubes' Catalog? (Maury Siskel)
5. Re: nuclear-powered submarine has collided with a
Japanesetanker (stewart farber)
6. DOE Contractor Looking for LB4100 (DeMers, Joseph W)
7. RE: Handbook for Responding to a Radiological Dispersal
Device Fi rst Responder's Guide--The First 12 Hours (Remick, Alan)
8. A brief different sight (Maury Siskel)
9. Re: nuclear-powered submarine has collided with a
Japanesetanker ( Franz Sch?nhofer )
10. Diabetes drug shows promise for preventing brain injury from
radiation therapy (ROY HERREN)
----------------------------------------------------------------------
Message: 1
Date: Tue, 09 Jan 2007 11:32:03 -0800
From: "Sandy Perle" <sandyfl at cox.net>
Subject: [ RadSafe ] First Announcement: The 2007 Dosimetry & Records
Symposium
To: radsafe at radlab.nl, powernet at hps1.org
Message-ID: <45A37D33.6339.13962A86 at sandyfl.cox.net>
Content-Type: text/plain; charset=ISO-8859-1
The 2007 Dosimetry & Records Symposium -- co sponsored by Global Dosimetry Solutions ; Landauerand Panasonic - cordially invites you to the 26th International Dosimetry & Records Symposium
AGENDA and other details:
http://www.dosimetryresources.com
from there, click on the tab for the 2007 Symposium As in 2006, this will be a joint symposium for Dosimetry and Records - with common plus parallel track sessions Topics planned are "Nuclear Renaissance" ; Nuclear Cycle ; Homeland Security ; Emergency Response ; Regulatory changes and updates ;Litigation ; Environmental ; Confidentiality ; Dose Reconstruction ; EPD ; Establishing a Program for Accreditation etc Special sessions are also planned for " Hands On" equipment training and panel discussions on open issues
REGISTRATION:
Attendees $350
Guests ( over12) $175
We will shortly post an On Line Registration Link -and also advice you by email
DATES:
Arrival on Sunday, June 3, 2007
Sessions from Monday, June 4 (8:00am) to Friday, June 8, 2007 (5:00pm) Depart on Saturday, June 9 at your leisure
VENUE:
Portland Marriott at Sable Oaks
200 Sable Oaks Drive
South Portland
Maine 04106
USA
(207) 871 8000
(800) 752 8810
http://marriott.com/property/propertypage/PWMAP
HOTEL ROOM RESERVATION
Please contact the Portland Marriott at Sable Oaks directly at (800) 752 8810 and identify yourself as an attendee of the "Dosimetry & Records Symposium June 3 -9; 2007 " to avail yourself of the special negotiated rates:
Single or Double Guestroom @ $ 149 plus 7% tax
Gov´t Rate @ $ 82 plus 7% tax
(Applicable only to active U.S. Gov´t/DOD/DOE employees - Valid ID required)
AIRPORT: Portland ; Maine(PWM)
http://www.portlandjetport.org/
Other nearby aiports are Boston Logan (BOS) approx 2 hours by car and Manchester (MHT) approx 1 1/2 hours by car.
GROUND TRANSPORTATION:
Hotel provides complimentary transportation from and to Portland , Maine (PWM) airport Looking forward to your participation Thank you,
2007 Dosimetry & Records Symposium Task Force
Inid Deneau Landauer Chairperson
Sandy Perle Global Dosimetry Solutions Co-Chairperson
Bruce Dicey Consultant
Dante Wells Savannah River Company
Deborah O´Connor TXU/Comanche Peak
Isabelle McCabe Radiation Safety and Control Services
Pam Heckman Energy Solutions
Richard Cadogan Argonne National Labs
Ash Chabra Panasonic
----------------------------------------------------------------
Sandy Perle
Senior Vice President, Technical Operations Global Dosimetry Solutions, Inc.
2652 McGaw Avenue
Irvine, CA 92614
Tel: (949) 296-2306 / (888) 437-1714 Extension 2306
Fax:(949) 296-1144
Global Dosimetry Website: http://www.dosimetry.com/ Personal Website: http://sandy-travels.com/
------------------------------
Message: 2
Date: Tue, 9 Jan 2007 16:24:23 -0800 (PST)
From: howard long <hflong at pacbell.net>
Subject: [ RadSafe ] Re: (Taiwan Apts) NSWS exposed lived longer (0.76
mortality rate!)
To: John Jacobus <crispy_bird at yahoo.com>, Jerry Cuttler
<jerrycuttler at rogers.com>, Jay Caplan <uniqueproducts at comcast.net>,
Muckerheide <muckerheide at comcast.net>
Cc: radsafe at radlab.nl, Rad Science List <rad-sci-l at WPI.EDU>
Message-ID: <20070110002423.18549.qmail at web81804.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
John,
Is your comment from judging others' actions by your own?
In fact, the Taiwan establishment and NSWS establishment not only used a one tail test, showing only harm and not benefit, they even distorted the abstract to give the opposite impression of a critical review of the data in the papers, like the Kyoto writer of their paper on global warming.
Dr. Cameron did write me before he died and used some of my suggestions to make his language unmistakable, that with p<0.001 (or more 0s in there) the life expectancy was improved by the extra radiation. That is a historic conclusion, one hidden by your bureacracy, presumably to protect your jobs.
Howard Long
John Jacobus <crispy_bird at yahoo.com> wrote:
Assuming you sent the information before Dr. Cameron
died, what did he conclude? Of course, the results of
the NSWS were questioned so what does that indicate?
Poor epidemiological studies should be consided good
enough if the results are what you want?
--- Jerry Cuttler wrote:
> I asked Bernie Cohen what a 40% reduction in
> mortality of the NSWs meant in terms of increased
> life expectancy.
> I recall Bernie's calculation that indicated a 2.8
> year increase in life expectancy. I sent Bernie's
> calculation to John Cameron.
> Jerry
> ----- Original Message -----
> From: howard long
> To: John Jacobus ; Jay Caplan ; Muckerheide
> Cc: Rad Science List ; radsafe at radlab.nl
> Sent: Thursday, January 04, 2007 5:33 PM
> Subject: Re: (Taiwan Apts) NSWS exposed lived
> longer (0.76 mortality rate!)
>
>
> Cameron showed 0.5 rem extra gave 2.5 mor years of
> life (p<0.0001?)
> Luan now proposes a clinical trial with 5
> rad/year. I would participate.
>
> Howard Long
>
> John Jacobus wrote:
> Of course, radiation effects in older people may
> not
> be demonstrated as the individuals do not live
> lone
> enough for the effects to be seen.
>
> --- howard long wrote:
>
> > Yes, Jay,
> > A different way of stating it it is that the
> dose
> > beneficial or harmful to persons under 30 is
> less
> > than that for older persons. I wonder if that
> shows
> > up in Ramsar, Iran data?
> >
> > Howard Long
> >
> > Jay Caplan wrote:
> > The "consequences" of looking at different
> > ages' results in this study are that we learn
> that
> > children and those under age 30 should not be
> > exposed to gamma excess, and that ages >30
> should be
> > exposed to gamma increases. Both of these
> approaches
> > would reduce the cancer incidence based on the
> study
> > results.
> >
> > This is not cherry picking, just looking at
> > separate results among a collection of
> results.
> >
> >
> > A 50% (solid cancer) and 40% (all cancer)
> lowering
> > of incidence in adults over age 30 is big
> news, but
> > not new news, it has been shown before in
> other
> > studies with similar exposures.
> >
> > Jay Caplan
> > ----- Original Message -----
> > From: howard long
> > To: John Jacobus ; rad-sci-l at WPI.EDU ;
> > radsafe at radlab.nl
> > Sent: Wednesday, January 03, 2007 11:11 AM
> > Subject: Antinucs' Reluctantly Released Data
> > Confirms Radiation Hormesis (Taiwan Apts)
> >
> >
> > Note "Environmental - " address to respond to
> > establishment release, and abstract
> inconsistent
> > with table 3 data: "highly significant
> (p<0.01)"
> > that solid cancer incidence
> > not LESS in exposed population.
> >
> > Only leukemia incidence may be higher, and
> > mortality rate even there just 2 in 7,000 in
> 23
> > years.
> >
> > Howard Long
> >
> > John Jacobus wrote:
> > Apparently, not everyone thinks that fatal
> cancers
> > are
> > the only end-points to be evaluated for the
> effects
> > of
> > low-level radiation exposure. It would be
> convenient
> > to ignore other effects, but is it ethical?
> Would
> > you
> > wish to have your child exposed to a toxin
> (whatever
> > it is) that would increase their risk of
> cancer in
> > later life?
> >
> > I am not sure that the headline "Childhood
> Cancer
> > Rate
> > Increase by 40% by Low Dose Radiation" would
> play as
> > well. You can certainly cherry-pick the data
> you
> > want, but what are the consequences?
> >
> >
> > --- "Muckerheide, Jim (CDA)"
> > wrote:
> >
> > > Friends, FYI.
> > >
> > > Regards, Jim
> > > ===========
> > >
> > > Isn't the most useful statistic the 40%
> reduction
> > of
> > > all cancers for
> > > those over age 30 exposed to a substantial
> amount
> > > (>50 mSv) over the
> > > years? ( 50% reduction for solid cancers).
> This is
> > > in the table on page
> > > 885.
> > >
> > > If radiation prophylaxis is ever applied to
> a
> > > population, it would be
> > > for those over age 30 certainly. I think
> that even
> > > though it ignored
> > > mortality, this is a very helpful study and
> > confirms
> > > the nuclear
> > > shipyard worker study results.
> > >
> > > Newspaper headlines should read "Adult
> Cancer Rate
> > > Reduced 40% by Low
> > > Dose Radiation," but you don't find this in
> the
> > > abstract.
> > >
> > > Jay
> > >
> > >
> > >
> _______________________________________________
> > > 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://radlab.nl/radsafe/radsaferules.html
> > >
> > > For information on how to subscribe or
> unsubscribe
> > > and other settings visit:
> > http://radlab.nl/radsafe/
> > >
> >
> >
> > +++++++++++++++++++
> > On Nov. 26, 1942, President Roosevelt ordered
> > nationwide gasoline
> > rationing, beginning December 1.
> >
> > -- John
> > John Jacobus, MS
> > Certified Health Physicist
> > e-mail: crispy_bird at yahoo.com
> >
> >
> __________________________________________________
> > Do You Yahoo!?
> > Tired of spam? Yahoo! Mail has the best spam
> > protection around
> > http://mail.yahoo.com
>
=== message truncated ===
+++++++++++++++++++
"We must face the fact that the United States is neither omnipotent or omniscient - that we are only 6 percent of the world's population; that we cannot impose our will upon the other 94 percent of mankind; that we cannot right every wrong or reverse each adversity; and therefore there cannot be an American solution to every world problem."
-- John F. Kennedy
-- John
John Jacobus, MS
Certified Health Physicist
e-mail: crispy_bird at yahoo.com
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
------------------------------
Message: 3
Date: Wed, 10 Jan 2007 10:14:27 -0500
From: "J. Marshall Reber" <jmarshall.reber at comcast.net>
Subject: [ RadSafe ] Victoreen Corotron Regulator Tubes' Catalog?
To: radsafelist <radsafe at radlab.nl>
Message-ID: <AB21A353-D6A4-43E5-A27B-FCA60C4B149C at comcast.net>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Not too many years ago before Victoreen dispersed itself, one could
access the specifications of their gaseous regulator tubes and their
very high resistance resistors online over the internet. At that
time I neither had a high resolution printer or a big hard drive so
that I, alas, did not download any copies for reference. Victoreen's
remains are now so dispersed that no one seems to know anything about
what they used to manufacture.
If anyone has a Corotron catalog or specs sheets of which I could
purchase hard or computer copies I would be most grateful.
J. Marshall Reber, ScD
165 Berkeley St.
Methuen MA 01844
Tel/Fax: 978-683-6540
Alternate Email: reber at alum.mit.edu
------------------------------
Message: 4
Date: Wed, 10 Jan 2007 09:12:17 -0600
From: Maury Siskel <maurysis at peoplepc.com>
Subject: Re: [ RadSafe ] Victoreen Corotron Regulator Tubes' Catalog?
To: "J. Marshall Reber" <jmarshall.reber at comcast.net>
Cc: radsafelist <radsafe at radlab.nl>
Message-ID: <45A50251.9010206 at peoplepc.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
J. Marshall Reber wrote:
> Not too many years ago before Victoreen dispersed itself, one could
> access the specifications of their gaseous regulator tubes and their
> very high resistance resistors online over the internet. At that
> time I neither had a high resolution printer or a big hard drive so
> that I, alas, did not download any copies for reference. Victoreen's
> remains are now so dispersed that no one seems to know anything about
> what they used to manufacture.
>
> If anyone has a Corotron catalog or specs sheets of which I could
> purchase hard or computer copies I would be most grateful.
>
>
>
> J. Marshall Reber, ScD
> 165 Berkeley St.
> Methuen MA 01844
>
> Tel/Fax: 978-683-6540
> Alternate Email: reber at alum.mit.edu
> ==============================
Marshall, will any of this material help you?
Best,
Maury&Dog
===============================
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------------------------------
Message: 5
Date: Wed, 10 Jan 2007 12:19:21 -0500
From: "stewart farber" <radproject at sbcglobal.net>
Subject: Re: [ RadSafe ] nuclear-powered submarine has collided with a
Japanesetanker
To: "Brian Rees" <brees at lanl.gov>, <srp-uk at yahoogroups.com>,
<radsafe at radlab.nl>, "Dawson, Fred Mr" <Fred.Dawson199 at mod.uk>
Message-ID: <007801c734db$77c3c7b0$0302a8c0 at YOUR7C60552B9E>
Content-Type: text/plain; charset="iso-8859-1"
Hello all,
As my original comment indicated [see below], any reference to a disaster involving radioactivity with the sub/oil tanker bump reported was completely tongue-in-cheek. There was a "smiley face" emoticon after my mention of a radioactive oil spill. I can't conceive of any accident involving a collision between a sub and a surface vessel that could damage a sub to such an extent.
Anyone who knows me appreciates that I enjoy the irony and satire which was evident in my post. Let's keep our sense of humor! I wrote initially:
"If the sub and oil tanker really got damaged in a situation like this, there might have been a large radioactive oil spill in the Gulf's Straits of Hormuz. :-) Talk about a disaster movie plot. What a cleanup problem. Coming soon to a theatre near you."
Maybe I should just write a script for the above disaster movie plot. If the "Poseidon Adventure" story line can end up as two Hollywood feature films with millions of $ going to the screenwriters, perhaps I'm in the wrong field.
Stewart Farber, MS Public Health
Farber Medical Solutions, LLC
Broker for Linac, Medical Imaging Equipment, and Radiation Instrumentation
[203] 441-8433 [office]
email: radproject at sbcglobal.net
----- Original Message -----
From: Brian Rees
To: stewart farber ; Dawson, Fred Mr ; radsafe at radlab.nl ; srp-uk at yahoogroups.com
Sent: Wednesday, January 10, 2007 10:53 AM
Subject: Re: [ RadSafe ] nuclear-powered submarine has collided with a Japanesetanker
Having spent quite a bit of time submerged on nuclear power, and some of that may have been in the Straits of Hormuz, I'd like to make a few comments.
First of all, a submarine can't hear very effectively directly behind it, so when they come up to periscope depth, they turn from side to side, listening in that "cone" for somebody who may be coming up behind you. So if you come up too quickly, and don't do that job well, you can get in trouble. Exciting, to say the least!!!
Secondly, the Straits of Hormuz are a "target-rich" environment, and keeping track of who's where, going in which direction, at what speed is very challenging, and the ships can change speed and direction at will. Remember, they aren't on roads. And the ocean and ocean bottom can do funny things to reflect sounds. Submarines don't use active sonar very much (kinda defeats their purpose!).
Thirdly, sea state and weather conditions aren't mentioned, so this may have contributed as well, a periscope is a radar target, and isn't put up any farther than required. Any substantial sea will limit your horizon, and although an oil tanker is big tonnage, loaded they can sit fairly low in the water.
All that said, yes, it's an embarrassment. The collision between the USS Greeneville and the Japanese Ship Ehime Maru was a combination of some of the factors above, and poor conduct of operations in the control room of the USS Greeneville. It's too bad that the people who claim to know Conduct of Ops don't know more about that accident and apply lessons learned to operations, rather that some of the BS that they do.
As far as a radioactive release as a result of a collision, that's extremely remote, a Submarine's hull is quite thick and strong, and there are multiple layers between radioactive materials and the fishes.
For more (quite good) reading about submarine life, I highly recommend Andy Karam's (!) book: Rig Ship for Ultra Quiet - available from Amazon Books.
Brian Rees
At 09:12 AM 1/9/2007, stewart farber wrote:
Hello colleagues,
Regarding the post by Fred Dawson about a US sub hitting an oil tanker. It is difficult to understand how a nuclear sub, with all its navigation equipment and sensors to detect anything near it [supposedly] can run up and hit an oil tanker. A tanker is a fairly large object on the surface that is not running along in a stealth mode like an enemy attack sub --- isn't it? An unfortunate embarassment for the US Navy.
Some will certainly paint this story as a new nuclear attack of sorts on the Japanese.
"Run Silent, Run Deep" is supposed to be what subs "aim" for. Theoretically, this could have been quite the disaster.
If the sub and oil tanker really got damaged in a situation like this, there might have been a large radioactive oil spill in the Gulf's Straits of Hormuz. :-) Talk about a disaster movie plot. What a cleanup problem. Coming soon to a theatre near you.
Stewart Farber, MS Public Health
Farber Medical Solutions, LLC
Broker for Linac & Medical Imaging Equipment
[203] 441-8433 [office]
email: radproject at sbcglobal.net
==============================
----- Original Message -----
From: "Dawson, Fred Mr" <Fred.Dawson199 at mod.uk>
To: <radsafe at radlab.nl>; <srp-uk at yahoogroups.com>
Sent: Tuesday, January 09, 2007 2:28 AM
Subject: [ RadSafe ] nuclear-powered submarine has collided with a Japanesetanker
BBC reports US sub collides with Japan ship
http://news.bbc.co.uk/1/hi/world/south_asia/6243395.stm
A US nuclear-powered submarine has collided with a Japanese tanker near
the Straits of Hormuz, Japanese and US government officials have said.
The USS Newport News did not suffer substantial damage, and there were
no injuries to crew, a US Navy spokeswoman told the AFP news agency.
There were no oil spills from Japanese tanker, the Mogamigawa, and no
injuries, a company official said. The tanker will dock in the United
Arab Emirates to check the damage. The bow of the submarine collided
with the stern of the oil tanker at 1915GMT just outside the busy
shipping lanes of the Straits of Hormuz.
US Navy spokesman in Bahrain said that there had been a collision.
"I can confirm that an incident took place between one of our submarines
and a merchant ship," said Commander Kevin Aandahl of the US Fifth
Fleet.
The 110-metre (360-foot) USS Newport News carries a crew of 127.
Fred Dawson
Fwp-dawson at hotmail.com
-------------- next part --------------
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------------------------------
Message: 6
Date: Wed, 10 Jan 2007 10:20:14 -0800
From: "DeMers, Joseph W" <joseph.demers at wch-rcc.com>
Subject: [ RadSafe ] DOE Contractor Looking for LB4100
To: "'radsafe at radlab.nl'" <radsafe at radlab.nl>
Cc: "DeMers, Joseph W" <joseph.demers at wch-rcc.com>
Message-ID:
<6ED9464012BE854ABA07FEBE6EFBBEFA020C6CB6 at rccex01.wch-rcc.com>
Content-Type: text/plain
Folks,
I am looking for a used or surplus Tennelec LB4100 multi-detector counter.
I am particularly interested if another DOE contractor may have one that
they are looking to excess or get rid of, where we can work a property
transfer.
Please respond to me off list if you can help.
Regards,
Joe DeMers
Radiological Control Technical Support Manager
Washington Closure Hanford
(509) 372-9040 (Desk)
(509) 521-0203 (Mobile)
------------------------------
Message: 7
Date: Tue, 9 Jan 2007 15:53:31 -0500
From: "Remick, Alan" <Alan.Remick at nnsa.doe.gov>
Subject: [ RadSafe ] RE: Handbook for Responding to a Radiological
Dispersal Device Fi rst Responder's Guide--The First 12 Hours
To: REP_Planners at yahoogroups.com, "RADSAFE Mailing List"
<radsafe at radlab.nl>
Message-ID: <EC66DCDA8EBDD411B1D100508BB0D938212E8EDB at nsforexch1>
Content-Type: text/plain
In addition to this reference document, the DOE/NNSA Emergency Operations
Training Academy has just published the "First Responder Guide for
Radiological Unknowns". This handy pocket guide will be made available in
limited quantities to State and Local responders through the Radiological
Assistance Program next week. Please contact your RAP Regional Office for
more information...
Alan L. Remick
NNSA AMS and REAC/TS Program Manager
NA-42
202-586-8312
202-586-3859 (fax)
"Leading Nuclear Response"
_____
From: REP_Planners at yahoogroups.com [mailto:REP_Planners at yahoogroups.com] On
Behalf Of Jim Hardeman
Sent: Tuesday, January 09, 2007 2:17 PM
To: RADSAFE Mailing List; REP Planners Mailing List
Subject: [REP Planners] Fwd: Handbook for Responding to a Radiological
Dispersal Device First Responder's Guide--The First 1
Distributed at the request of the Conference of Radiation Control Program
Directors, Inc. (CRCPD).
Jim Hardeman -- Jim_Hardeman at dnr.state.ga.us
<mailto:Jim_Hardeman at dnr.state.ga.us>
===============================
PRESS RELEASE
RDD (Dirty Bomb) First Responder's Guide-The First 12 Hours Now Available!
The Conference of Radiation Control Program Directors, Inc. announces
publication of the Handbook for Responding to a Radiological Dispersal
Device First Responder's Guide-The First 12 Hours. This handbook was
developed as a training and reference tool for first responders with various
degrees of radiological experience. The RDD Handbook expands on the
concepts presented in the RDD Pocket Guide published by CRCPD in March 2006.
The RDD Handbook provides guidance in a number of areas, including a flow
chart of actions when responding to an RDD, rules of thumb, determination of
various radiation zones, use of radiation instrumentation, decontamination
guidelines, and multiple forms that can be tailored for specific needs. The
RDD Handbook also includes lists of state, local and federal radiation
control contacts that can provide assistance.
This handbook will be useful for training, exercise and response activities.
Many of the concepts introduced in the handbook can be applied to a variety
of radiation incidents, and do not apply exclusively to dirty bombs.
The RDD Handbook consists of the bound document, a CD containing forms and
handouts, and one RDD Pocket Guide. Ordering information is available at
<www.crcpd.org/RDD.htm> or call (502) 227-4543, Ext. 2229. Price: $30,
including shipping.
The Conference of Radiation Control Program Directors, Inc. (CRCPD) is a
nonprofit professional organization dedicated to radiation protection.
CRCPD's mission is to promote consistency in addressing and resolving
radiation protection issues, to encourage high standards of quality in
radiation protection programs, and to provide leadership in radiation safety
and education. CRCPD's headquarters is located at 205 Capital Avenue,
Frankfort, KY 40601.
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Message: 8
Date: Wed, 10 Jan 2007 14:06:36 -0600
From: Maury Siskel <maurysis at peoplepc.com>
Subject: [ RadSafe ] A brief different sight
To: Mailing List for Risk Professionals <riskanal at lyris.pnl.gov>,
radsafe <radsafe at radlab.nl>
Message-ID: <45A5474C.2070604 at peoplepc.com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Admittedly off topic, no risk and probably no irradiation here. But take a minute from your shop and enjoy this .... You'll work better tomorrow. <g>
http://spaceweather.com
Comet McNaught has continued to brighten as it approaches the sun and it is now the brightest comet in 30 years. For observers in the northern Hemisphere, tonight is probably the best time to see it: Go outside this evening and face the sunset. A clear view of the western horizon is essential, because the comet hangs very low. As the twilight fades to black, it should become visible to the naked eye. Observers say it's a fantastic sight through binoculars.
------------------------------
Message: 9
Date: Thu, 11 Jan 2007 00:04:43 +0100
From: " Franz Sch?nhofer " <franz.schoenhofer at gmail.com>
Subject: Re: [ RadSafe ] nuclear-powered submarine has collided with a
Japanesetanker
To: "stewart farber" <radproject at sbcglobal.net>
Cc: "Dawson, Fred Mr" <Fred.Dawson199 at mod.uk>, srp-uk at yahoogroups.com,
radsafe at radlab.nl
Message-ID:
<dcd465500701101504g119c5f6cya89064a097d630d7 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Dear all,
I read today two Austrian papers. One was on the internet, which did not
mention the incident at all. The other one I read as a paper copy had a
short note on approximately page 17, mentioning that a US submarine had
collided with a Japanese tanker. There was not a single word on the fact
that it was a nuclear-powered submarine. If not even newspapers in Austria,
a country which is fiercly antinuclear, mentions this it seems that this
fact does not play a big role in public perception worldwide.
Best regards,
Franz
2007/1/10, stewart farber <radproject at sbcglobal.net>:
>
> Hello all,
>
> As my original comment indicated [see below], any reference to a disaster
> involving radioactivity with the sub/oil tanker bump reported was completely
> tongue-in-cheek. There was a "smiley face" emoticon after my mention of a
> radioactive oil spill. I can't conceive of any accident involving a
> collision between a sub and a surface vessel that could damage a sub to such
> an extent.
>
> Anyone who knows me appreciates that I enjoy the irony and satire which
> was evident in my post. Let's keep our sense of humor! I wrote initially:
>
> "If the sub and oil tanker really got damaged in a situation like this,
> there might have been a large radioactive oil spill in the Gulf's Straits of
> Hormuz. :-) Talk about a disaster movie plot. What a cleanup problem.
> Coming soon to a theatre near you."
>
> Maybe I should just write a script for the above disaster movie plot. If
> the "Poseidon Adventure" story line can end up as two Hollywood feature
> films with millions of $ going to the screenwriters, perhaps I'm in the
> wrong field.
>
> Stewart Farber, MS Public Health
> Farber Medical Solutions, LLC
> Broker for Linac, Medical Imaging Equipment, and Radiation Instrumentation
> [203] 441-8433 [office]
> email: radproject at sbcglobal.net
>
>
>
------------------------------
Message: 10
Date: Wed, 10 Jan 2007 16:05:48 -0800 (PST)
From: ROY HERREN <royherren2005 at yahoo.com>
Subject: [ RadSafe ] Diabetes drug shows promise for preventing brain
injury from radiation therapy
To: radsafe at radlab.nl
Message-ID: <264810.8126.qm at web81604.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Public release date: 10-Jan-2007
Contact: Karen Richardson
krchrdsn at wfubmc.edu
336-716-4453
Wake Forest University Baptist Medical Center
Diabetes drug shows promise for preventing brain injury from radiation therapy WINSTON-SALEM, N.C. -- Researchers at Wake Forest University School of Medicine are the first to report that in animal studies, a common diabetes drug prevents the memory and learning problems that cancer patients often experience after whole-brain radiation treatments.
"These findings offer the promise of improving the quality of life of these patients," said Mike Robbins, Ph.D., senior researcher. "The drug is already prescribed for diabetes and we know the doses that patients can safely take."
Whole-brain radiation is widely used to treat recurrent brain tumors as well as to prevent breast cancer, lung cancer and malignant melanoma from spreading to the brain. About 200,000 people receive the treatment annually, and beginning about a year later, up to one-half develop progressive cognitive impairments that can affect memory, language and abstract reasoning.
In the current issue of the International Journal of Radiation Oncology - Biology -Physics, Robbins and colleagues report that rats receiving the diabetes drug piolitazone (sold under the trade name Actos®) before, during and after radiation treatments did not experience cognitive impairment.
The scientists compared whether treatment with Actos for four weeks or for 54 weeks after radiation would be more effective, and found there was not a significant difference.
The study involved young adult rats that received either radiation treatment equal to levels received by humans or a "sham" treatment involving no radiation. Animals in both groups received either a normal diet or a diet containing the diabetes drug.
Cognitive function was assessed a year after the completion of radiation therapy using an object recognition test. Rats receiving radiation exhibited a significant decrease in cognitive function, unless they received the diabetes drug for either four or 54 weeks after radiation.
"This could be easily applied to patients," said Robbins, a professor of radiation biology. "We know the drugs don't promote tumor growth, and in some cases may inhibit it."
Currently, there are no known treatments to prevent cognitive impairments, and Robbins said the aging of the American population makes it imperative to solve the problem.
"Cancer is a disease of old age, so the number of people getting whole-brain radiation will increase," he said.
In essence, radiation causes the cognitive problems because it speeds up the brain's aging process. Recent research suggests that a cause may be chronic inflammation or oxidative stress. Oxidative stress occurs when cells cannot remove free radicals, or structurally unstable cells that can damage healthy cells.
The study by Robbins and colleagues was based on evidence that the diabetes drug pioglitazone prevents inflammation. The drug activates a specific type of peroxisome proliferator-activated receptors (PPARs) that control fat and glucose metabolism, and may be involved in inflammation.
Robbins said because the drug shows promise for preventing cognitive impairment, it may allow doctors to give higher doses of radiation. Currently, while higher doses of radiation have been associated with longer survival, dose is limited because of potential damage to surrounding healthy tissue.
###
The research is supported by the National Cancer Institute. Co-researchers were Weiling Zhao, Ph.D., Valerie Payne, B.S., Ellen Tommasi, B.S., Debra Diz, Ph.D., and Fang-Chi Hsu, Ph.D., all with Wake Forest.
Media Contact: Shannon Koontz, shkoontz at wfubmc.edu; at 336-716-4587
Wake Forest University Baptist Medical Center is an academic health system comprised of North Carolina Baptist Hospital and Wake Forest University Health Sciences, which operates the university's School of Medicine. U.S. News & World Report ranks Wake Forest University School of Medicine 18th in family medicine, 20th in geriatrics, 25th in primary care and 41st in research among the nation's medical schools. It ranks 35th in research funding by the National Institutes of Health. Almost 150 members of the medical school faculty are listed in Best Doctors in America.
---------------------------------
Roy Herren
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End of radsafe Digest, Vol 76, Issue 2
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