[ RadSafe ] Removal of Cs-137 source from an old irradiator

Tue Aug 16 17:46:06 CDT 2011

We did contact J.L. Shepherd and got a quote from them, but were also trying to explore some other (perhaps less expensive?) possibilities. 

Thanks!

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Bob Hearn
Sent: Tuesday, August 16, 2011 8:18 AM
To: The International Radiation Protection (Health Physics) MailingList
Subject: Re: [ RadSafe ] Removal of Cs-137 source from an old irradiator

Not sure of all of the history, but J.L. Sheperd has manufactured similar
calibration irradiators for decades and is located in Burbank. He may have
made yours or at least be familiar with it. Not likely that many will be
interested in 137Cs of that vintage - likely leaker - but he would probably
quote services for removal (probably not cheap). I would press the issue
with OSRP as that type of source as you would expect is the target for
securing such materials. If they can give you a reason for not addressing
this, they should be able to refer you to an alternative; otherwise, what is
their mission? You could also contact Hopewell Designs / Hopewell
Enterprises in Alpharetta, GA who also make such devices.

----- Original Message ----- 
From: "Don Jordan" <donjordan at ramservicesinc.com>
To: "'The International Radiation Protection (Health Physics) Mailing List'"
<radsafe at health.phys.iit.edu>
Sent: Tuesday, August 16, 2011 9:37 AM
Subject: Re: [ RadSafe ] Removal of Cs-137 source from an old irradiator

J.L. Shepherd may be interested in acquiring your source for re-use.

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Wasiolek, Maryla
Sent: Monday, August 15, 2011 5:57 PM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] Removal of Cs-137 source from an old irradiator

Gentlemen,

Thank you very much for the tips.  At some point we did contact OSRP, but
from what I understand, the removal of our source was not quite consistent
with their mission. The irradiator is rather large, about 6 feet tall, which
is why we thought we would try to remove the source for disposal, e.g., from
behind the shield wall using manipulators.  That is why I was looking for
the information on how the irradiator was constructed inside.

Thanks again,

Maryla Wasiolek
Gamma Irradiation Facility
Sandia National Laboratories
Albuquerque, NM
505-844-3507

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of ROY HERREN
Sent: Monday, August 15, 2011 3:43 PM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] Removal of Cs-137 source from an old irradiator

The very best deal to be had for disposal of these types of items can be
found
at Off-Site Source Recovery Project, OSRP, http://osrp.lanl.gov/. The cost
to
your facility will be minimal, that is if there is any cost at all.

Roy Herren

________________________________
From: "DrDonRhodes at cs.com" <DrDonRhodes at cs.com>
To: radsafe at health.phys.iit.edu
Sent: Mon, August 15, 2011 2:35:30 PM
Subject: Re: [ RadSafe ] Removal of Cs-137 source from an old irradiator

Hi,
I had a similar problem 25 years ago involving 200 curies of Co-60
in an experimental device which I designed and built. I had a complete set
of drawings, but I did not try to remove the sources.
I got a type B shipping container from Chem Nuclear Systems, loaded
the device, mixed and poured in concrete and shipped for disposal.
This is expensive and does not help you much.
Good luck,
Ddon Rhodes
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