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Air Kerma Clarification

I apologize for being unclear.  The question I was asked did not present the
full picture and did not appropriately present my question.  Sorry!
Hopefully, this explanation will make sense.

We have P-32 sources which we will soon be sending internationally.  Once
packaged our dose is from bremsstrahlung and not from the beta particles.  I
was wondering how to convert the R/hr value into air kerma.  If I am not
mistaken the correction is as follows:  R/hr * 2.58 E-04 C/kg * 34 J/C = 8.8
E-03 J/kg.  If I am wrong, please let me know.

Thanks for everyone help!
J. W. Poston, Jr., PhD, CHP
Vascular Intervention Group
Guidant Corporation
8934 Kirby Drive
Houston, Texas  77054
Voice:	713-218-9231
Fax:	713-218-9285
E-mail:	Jposton@Guidant.com <mailto:Jposton@Guidant.com> 

	-----Original Message-----
	From:	LIPTONW@dteenergy.com [SMTP:LIPTONW@dteenergy.com]
	Sent:	Tuesday, September 22, 1998 1:12 PM
	To:	Multiple recipients of list
	Subject:	Re: Air Kerma

	My apologies if I'm misinterpreting your question, but it doesn't
seem to
	make 
	sense.  P-32 is a pure beta emitter.  Kerma only applies to
indirectly 
	ionizing radiations, i.e., photons and neutrons.  If, by "R/hr", you
mean 
	Roentgen/hr, it should also be noted that the term, Roentgen, only
applies
	to 
	photons.   
	 
	The opinions expressed are strictly mine. 
	It's not about dose, it's about trust. 
	 
	Bill Lipton 
	liptonw@dteenergy.com 
	 
	You wrote: 
	 
	>I was asked to convert R/hr measured from a P-32 source to air
kerma.  Is 
	>there a simple conversion factor out there that will do this? 
	 
	>Thanks, 
	>J. W. Poston, Jr., PhD, CHP 
	>Vascular Intervention Group 
	>Guidant Corporation 
	>8934 Kirby Drive 
	>Houston, Texas  77054 
	>Voice:	713-218-9231 
	>Fax:	713-218-9285 
	>E-mail:  Jposton@Guidant.com <mailto:Jposton@Guidant.com> 
	
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