RE: WTC sources

["Jean-Francois, Stephane" <stephane_jeanfrancois@MERCK.COM>]

I don't know how 10 CFR 34 works, but here in Canada, any storage of more

then 30 consecutive days for gammagraphy sources needs to be reported to

CNSC(Regulator) and a log of all "jobs" is available at the licensee. I

would imagine NRC is doing the same. So if people are looking for a

radioactive source, there is good chances that there is a source (they were

informed). The source might be Ir-192 (about 100 Ci) because of the

application inside a populated building. If not, for X-ray of structures,

you can use about 50 Ci of Co-60 but this is less frequent.



Stephane Jean-Francois, Eng., CHP,



Specialiste en radioprotection/Radiation Safety Specialist,

Gestion des risques/Risk Management

Merck Frosst Canada & Co.

tel: 514.428.8695

FAX: 514.428.8670

email:stephane_jeanfrancois@merck.com

http://www.merckfrosstlab.ca/





-----Original Message-----

From: Genzer, Peter A [mailto:genzer@BNL.GOV]

Sent: Monday, September 17, 2001 2:23 PM

To: Radsafe Mail list

Subject: RE: WTC sources





All,





	As previously mentioned, DOE's Radiological Assistance Program (RAP)

Region 1 (based at Brookhaven National Laboratory) was deployed to the WTC

site last week to help search for radiography sources.



	Here's what we have posted on our web site at

http://www.bnl.gov/bnlweb/Admin/091101_statement2.htm



	***

	RAP Responds



Shortly after the World Trade Center disaster unfolded on September 11, the

RAP team at Brookhaven was put on alert. The next day, New York City

officials called RAP, short for Radiological Assistance Program, to assist

in determining if there were any radiography sources stored or used in

either of the buildings. Radiography is commonly used to check for defects

in steel and concrete, much the way a dentist uses x rays to examine teeth.



Working twelve-hour shifts, the first RAP team left for the city Wednesday

night, and a replacement team went Thursday morning. Close to 20 BNL and DOE

employees were involved in this response.



RAP is a national program maintained by the U.S. Department of Energy to

assist federal, state, and local governments in handling incidents involving

radioactive materials. Every RAP response is aimed at protecting people and

property.

	***

	

The RAP team worked shifts through the weekend. So far, there's been nothing

detectable.



	Pete Genzer

	Media and Communications Office

	Brookhaven National Laboratory

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