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RE: Sr-90 questions
Some of the interest may be from new medical applications. There is a new
product which is making its way into Cardiology Departments which contains
Sr-90 being used for Intravascular Brachytherapy (IVB). Following your
angioplasty which requires the placement of a stent, a second catheter is
inserted with a small "train" of Sr-90 seeds (about 20 mm in total
length)which is used to radiate the treated area to prevent the "scarring"
of the vessel and subsequent potential blockage. There are similar
treatment methods underway using Ir-192 and P-32 (gamma vs. beta).
--
All messages sent from this email account, regardless of their content, are
purely a personal remark/query and in no way reflect any official standing
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The thoughts expressed are mine, mine, all mine!
I'm with the government, I'm here to help........
Daren Perrero, Health Physicist
perrero@idns.state.il.us
-----Original Message-----
From: Brian Rees [mailto:brees@lanl.gov]
Sent: Friday, February 23, 2001 9:02 AM
To: Multiple recipients of list
Subject: Sr-90 questions
For some reason, I've been asked a number of different questions about
Sr-90 recently. I've been able to answer them to a certain extent, but now
I have questions:
1) Other than it's abundance as a fission product, it's almost pure
beta
emission(s) (including Y), and half-life/specific activity, why Sr? I.e.
are there other reasons I'm missing?
2) What are common uses other than ocular devices, instrument sources,
heat
sources, and de-icing sensors?
Thanks in advance,
Brian Rees
brees@lanl.gov
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