Date: Thu, 19 Jun 2008 15:39:33 -0400
Reply-To: Michael Hopmeier <hopmeier**At_Symbol_Here**GNT.NET>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Michael Hopmeier <hopmeier**At_Symbol_Here**GNT.NET>
Subject: Re: Radiation Badges in a Research Facility
Comments: To: David Bunzow
In-Reply-To: <F3EE90CE3A142E40A74789B1BE5AB93A13E437**At_Symbol_Here**>
Anyone with the potential to receive >100mRem/year is given a TLD after
undergoing special training. As in the hospital setting, the TLD should
be worn at work in the facility at all times: you cannot predict when an
over exposure might occur! This also lets you immediately pick out those
who have taken off their badge when they get too close to their max (
Interventional Radiologists and Cardiologists are notorious for

In special circumstances and by exception, I've also issued a a TLD to
anyone who has special circumstances: for example a pregnant woman where
she and perhaps the supervisor want the psychological comfort of
objective negative data.

P.K. Lillis-Hearne MD, MHA
Armed Forces Radiobiology Research Institute Uniformed Services
8901 Wisconsin Avenue
Bethesda, MD 20889-5603
Office: 301-295-1210
Fax: 301-295-4967
DSN prefix: 295

Michael J. Hopmeier
Unconventional Concepts, Inc.
Florida Headquarters
425 East Hollywood Blvd. Suite A
Mary Esther, FL
Fax  243-5279
Virginia Office
3811 N. Fairfax, Suite 720
Arlington, VA 22203

-----Original Message-----
From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**] On Behalf Of
David Bunzow
Sent: Thursday, June 19, 2008 9:55 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHAS-L] Radiation Badges in a Research Facility


I have been approached by several of our employees wanting to receive
your collective wisdom or consensus on the proper use of radiation
badges in a multi-project research facility.


We have several radiation sources within our facility. We issue both
finger ring and belt badges to monitor cumulative monthly exposures.
Those who either work in these labs or work in areas where they are
potentially exposed are in our program.


The question comes as to when they should wear these badges:

[1] Just in the labs where sources are present

[2] Areas outside where our source models indicate the possibility of
exposure is present

[3] Anytime when they are within the over facility


Your insights and citations are always appreciated.


David A. Bunzow

North Dakota State University

Center for Nanoscale Science and Engineering

Manager of Research Services & Technical Operations

Director of Materials Characterization and Analysis Laboratories

1805 NDSU Research Park Drive North  (Room 102U)

Fargo, ND 58102

Office:  (701) 231-7323

Cell:  (701) 541-2354 (personal)

FAX:  (701) 231-5306

E-mail: david.bunzow**At_Symbol_Here**


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