[ RadSafe ] SCBA and beta dose connection?

[Perle, Sandy]

When at FPL back in the late 80's we did a study for beta attenuation. If I recall, ~70 mg/cm^3 attenuated about 95% of the beta dose posture. I have the study somewhere in my files.

Sent from my iPad

On Apr 12, 2012, at 3:03 PM, "radbloom at comcast.net" <radbloom at comcast.net> wrote:

> 
> 
> John, 
> 
> 
> 
> While I'm not sure it's always true, many SCBA models includes a full-face shield, which would significantly reduce or eliminate (depending on beta energy and shield thickness) beta dose to the eyes/face. 
> 
> 
> Cindy Bloom 
> 
> 
> ----- Original Message -----
> 
> 
> 
> 
> From: "Randy Redmond (RXQ)" <redmondrr at y12.doe.gov> 
> To: radsafe at health.phys.iit.edu 
> Sent: Thursday, April 12, 2012 3:29:52 PM 
> Subject: Re: [ RadSafe ] SCBA and beta dose connection? 
> 
> Beta dose rate to the eyes? 
> 
> Randy Redmond 
> B&W Y-12 
> Radiological Engineering 
> 865.574.5640 
> 
> -----Original Message----- 
> From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of JOHN.RICH at sargentlundy.com 
> Sent: Thursday, April 12, 2012 3:12 PM 
> To: radsafe at health.phys.iit.edu 
> Subject: [ RadSafe ] SCBA and beta dose connection? 
> 
> I have a document in front of me that states, " IF SCBAs are used, the 
> beta dose rates may be neglected."  The context is in a post -accident 
> mission dose determination where the effect of SCBAs is discussed. I'll 
> admit my ignorance on this one.  Does anybody know where this came from or 
> what would support it? 
> 
> thx in advance  - -jmr 
> 
> John Rich 
> 312-269-3768 
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