Re: beta particle range

[sergio fierman <sergio@bgumail.bgu.ac.il>]

Dear Bob,

A universal curve of beta ray range in units of  mg per sq. cm is given
in
Cember's book, and is fitted to the following equations:
 
R=412*E( exp 1.265 - 0.0954 lnE)  for 0.01< E <2.5 MeV

ln E= 6.63-3.2376(( 10.2146 - ln R) exp 1/2)    for R<1200

R= 530E- 106  for E<2.5 MeV, R>1200

Good luck!

Sergio




 =============================================================================
 Sergio Faermann Ph.D.                      Tel: 972 - 7 -6 400682/6403301
 Chief Medical Physicist                    Fax: 972 - 7 -6 232336      
 Institute of Oncology                      E-mail: sergio@bgumail.bgu.ac.il
 Soroka Medical Center
 P.O.B 151 Beer-Sheva 84101
 ISRAEL
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On Thu, 3 Jul 1997, Bob Dunn wrote:

> Hello,
> I seem to remember a formula for beta particle energy-range relationship
> (in Cember's Intro. to Healt Physics), however, I do not have the book
> with me. Does anyone know the formula off-hand, or any other applicable
> formula? Thanks.
> Bob Dunn
> rso.gscancer@worldnet.att.net
>