Re: Energy level of Bremstrahlung rays produced by 32P

["Tom Johnson" <tjohnson@radtrain.com>]

Herman Cember's text "Introduction to Health Physics" Third edition, page
130 (Chapter 5) gives estimated doses from P-32 bremsstrahlung. It also
describes some basic assumptions typically used with bremsstrahlung.

The energy of bremsstrahlung x-rays is heavily dependant on the material,
and any shielding. The majority of the x-rays are low energy, and the number
of x-rays decreases exponentially as energy of x-rays increases. A rule of
thumb, whose origin I cannot remember, is that the average energy of the
bremsstrahlung x-rays is about 16% of the average beta energy.

Tom Johnson
tjohnson@radtrain.com

-----Original Message-----
From: mdater@nexstar.com <mdater@nexstar.com>
To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
Date: Wednesday, May 27, 1998 1:34 PM
Subject: Energy level of Bremstrahlung rays produced by 32P


>Hi,
>Does anyone know what the energy level is of the x-rays produced by 32P
>when the Bremstrahlung effect occurs? Do you know of a reference?
>Mark Dater
>NeXstar Pharmaceuticals, Inc.
>2860 Wilderness Place
>Boulder, CO. 80301
>Work phone: (303) 546-7703
>Fax: (303) 444-0672
>E-mail mdater@Nexstar.com
>These are my comments and questions and not those of my employer.
>
>
>