[ RadSafe ] Fwd: Xe133 and Xe135

Chris Alston achris1999 at gmail.com
Wed Nov 14 15:25:02 CST 2012


You might want to check out the publications some of us recommended a
couple of weeks ago, in answer to a question about effective
half-lives, at least WRT Xe-133.  I have added the distinguished Dr.
Carol Marcus' mention of ICRP 62 to my original message.

"There are a multitude of these, depending on exactly what you mean.
The MIRD Committee publishes reports, and there are ICRP Publications
53, 62, 80, and 106.  There is also the RADAR website, doseinfo-radar.com.

But you might want to start with NUREG/CR-6345, Radiation Dose
Estimates for Radiopharmaceuticals, of April 1996."

The EPA has Federal Guidance Report 11 (which they are updating, I
think): http://www.epa.gov/radiation/federal/techdocs.html#report11.

Let us know what you come up with.


---------- Forwarded message ----------
From: ROMANOWICH Larry(L) - BRUCE POWER <larry.romanowich at brucepower.com>
Date: Tue, Nov 13, 2012 at 12:13 PM
Subject: [ RadSafe ] Xe133 and Xe135
To: "radsafe at health.phys.iit.edu" <radsafe at health.phys.iit.edu>

Generally speaking the noble gases, Xe133 and Xe135 are considered
submersion hazards, with negligible internal hazards.  ICRP 68 lists
them as SR-0.  In spite of that it has been long known that there is a
small component that can be attached to the fatty tissues when
inhaled.  I see there were a few early attempts to compute internal
doses from Xenon in Technical papers, HP Vol 38 by Howard and Sommers
1979, and Journal of Nuclear Medicine,1977 by Susskind et al.  Has
anyone got (can you forward to me) more current dose coefficients for
the inhalation of these isotopes of Xenon or other more recent
technical papers?

Larry Romanowich
HP Dosimetry
Bruce Power
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