[ RadSafe ] Incidental Radiation Generating Device Leakage Radiation Limits

roseb at gdls.com roseb at gdls.com
Tue Sep 4 09:02:57 CDT 2012


Reference U.S. Department of Energy Radiological Control Manual, 
DOE/EH-0256T, Revision 1 (1994), 
https://www.orau.org/PTP/PTP%20Library/library/DOE/Misc/doe_rcm.pdf .

The DOE appears to have recognized the absence of specific federal 
radiological health standards for certain devices in their Radcon Manual 
(1994), and referred management and the RCO to applicable ANSI standards. 
As you are aware, in the case of devices such as electron microscopes and 
electron beam welders, Article 365.3 leaves the establishment of 
radiological controls for such devices to line management AND the 
Radiological Controls Organization (RCO) (DOE, p. 3-29, pdf p. 93/220).

Given the absence of a specific federal standard for the devices under 
consideration, and, given that the location where the devices are operated 
is likely a federal enclave or exclusive federal jurisdiction with respect 
to state radiological health regulations (state regs might not apply), 
your reference to the ANSI N43.3 Exempt Shielded Installation criteria 
dose equivalent limit of 0.005 mSv (0.5 mrem) in any one hour at any 
accessible area 5 cm (2 inches) from the outside surface of the enclosure 
(N43.3-2008, para. 5.1.10, p.9, pdf p. 18/79) appears to be a reasonable 
and feasible radiological control measure that is consistent with the DOE 
Radiological Health and Safety Policy (DOE, p. i, pdf p. 3/220).


Boyd H. Rose, CM, CIH, CHMM, EI
Sr. Safety and Environmental Engineering Specialist
Corporate Radiation Safety Officer
General Dynamics Land Systems
38500 Mound Road
Mail Zone 436-10-75
Sterling Heights , MI 48310-3269
Tel: 586 825 4503
Fax: 586 825 4015
E-mail: roseb at gdls.com

"Redmond, Randy (RXQ)" <redmondrr at y12.doe.gov> 
Sent by: radsafe-bounces at agni.phys.iit.edu
09/04/2012 07:25 AM
Please respond to
"The International Radiation Protection \(Health Physics\) Mailing List" 
<radsafe at agni.phys.iit.edu>

"radsafe at health.phys.iit.edu" <radsafe at agni.phys.iit.edu>

[ RadSafe ] Incidental Radiation Generating Device Leakage      Radiation 

Does anyone know a citation for federal leakage radiation limits for 
incidental radiation generating devices such as electron beam welders and 
electron microscopes? I have searched and cannot find any.  As a default, 
I'm using ANSI N43.3 Exempt Shielded Installation criteria of 0.5 mrem at 
5 cm.


Randy Redmond
B&W Y-12
Radiological Engineering

More information about the RadSafe mailing list