Subject:  Triplet free radical production by EMF.....
Date:     Thu, 28 May 1998 042555 -0500 (CDT)
From:     "Roy L. Beavers" <rbeavers@llion.org>
To:       emfguru@hotmail.com
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---------- Forwarded message ----------
Date: Thu, 28 May 1998 08:41:00 +0200
From: "HIGH, INGRID" 
To: "Roy L. Beavers" 

Roy,
if this is of interest, please post it. I am on another odd list which
occasionally posts things on emf - the address is in the part below. -
with warm greetings,
Ingrid High
 --------------------------------------------------------------

Dear Dr. Garcia-Cobian,

With regard to your inquiry about triplet production from
electromagnetic radiation (below), magnetic fields can facilitate
the production of triplet free radicals in bological
systems at energies far below ionizing levels.  A discussion
of this mechanism for 60 Hz and static magnetic fields is
posted on the WEB site of the U.S. goverment's EMF
Research and Public Information Dissemination (RAPID)
program:

http://www.niehs.nih.gov/emfrapid/html/Symposium1.html

Look for the session on magnetochemistry.  It includes
a variety of references.

Joseph Bowman

***************
Radiation Section
Division of Biomedical & Behavioral Sciences
National Institute for Occupational Safety & Health
Cincinnati, Ohio 45226
USA

Phone:    513-533-8143
FAX:      513-533-8510
E-mail:   jdb0@cdc.gov

These opinions are my own and do not necessarily reflect NIOSH
policies.
***************
 ----------
From: Josi Garcma-Cobian
To: EMFLDS-L@LISTSERV.ACSU.BUFFALO.EDU
Subject: Triplet Production
Date: Tuesday, May 26, 1998 12:38PM

Dear fellow members from the list,

The three most common ways of interaction of electromagnetic radiation
with matter in medicine, especially in radiation oncology are the
photoelectric effect, Compton scattering and pair production.

But along with pair production there is also triplet production which
unlike pair production involves an electron, not the nucleus. I have
read that the threshold energy that the incoming radiation should have
for triplet production to happen is 2.044 Mev. Anyway I have not been
able to arrive at this result for myself. Can anybody suggest any way of
reaching it? or any literature about this?

Thank you in advance for your help.

Sincerely,

Jose Garcia-Cobian



Archive provided courtesy of WaveGuide, http://www.wave-guide.org
Reprinted with permission of Roy Beavers, http://www.feb.se/EMF-L/EMF-L.html