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AW: Xenolite Protective clothing



Dear Ed, dear John,



I do not know for sure, whether lead aprons should be replaced by other

materials, the only reason I can think of, is that "lead" is toxic. 



So is barium! "Barium" is a metal, which would react probably violently

with oxigen and water. I would believe that barium sulphate might be

used in whatever matrix. I cannot believe that its use in aprons would

be comparable to lead. Tungsten (Wolfram in German) has a high

absorption possibility, is (has been) used in weapons for high

penetration capability just as depleted uranium. I guess that tungsten

will be much more expensive than lead and its shielding efficiency would

be considerably less than for lead. 





So why should one replace the good old lead aprons with less efficient

and similarily "poisonous" materials?







Franz Schoenhofer

PhD, MR iR

Habicherg. 31/7

A-1160 Vienna

AUSTRIA

phone -43-0699-1168-1319



--------------------------------------------------------------------



> -----Ursprüngliche Nachricht-----

> Von: owner-radsafe@list.vanderbilt.edu [mailto:owner-

> radsafe@list.vanderbilt.edu] Im Auftrag von John Jacobus

> Gesendet: Freitag, 03. Dezember 2004 00:17

> An: Baratta, Edmond J; radsafe@list.vanderbilt.edu

> Betreff: Re: Xenolite Protective clothing

> 

> The material is made from barium and wolfram

> (tungsten)

> 

> http://www.scanrad.no/Xenolite.htm

> 

> Also, try

> http://www.apc-cardiovascular.co.uk/xenolite.htm

> 

> 

> --- "Baratta, Edmond J" <EBARATTA@ORA.FDA.GOV> wrote:

> 

> > Does anyone have any information about Xenolite

> > Protective clothing  It

> > supposedly is used to replace lead aprons and other

> > protective clothing.

> >

> >

> >

> > Thanks,

> >

> >

> >

> > Ed

> >

> >

> >

> > Edmond J. Baratta

> >

> > Radiation Safety Officer

> >

> > Tel. No. 781-729-5700, ext 728

> >

> > FAX: 781-729-3593

> >

> >

> >

> >

> 

> 

> =====

> +++++++++++++++++++

> "That government is the strongest of which every man feels himself a

> part."

> Thomas Jefferson

> 

> -- John

> John Jacobus, MS

> Certified Health Physicist

> e-mail:  crispy_bird@yahoo.com

> 

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