[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Nd-144
- To: radsafe <radsafe@romulus.ehs.uiuc.edu>
- Subject: Nd-144
- From: "John R. Laferriere 671-8316" <John.R.Laferriere@dupontpharma.com>
- Date: Tue, 01 Dec 1998 15:59:06 -0500 (EST)
- A1-type: MAIL
- Alternate-recipient: prohibited
- Hop-count: 1
- Importance: normal
- MR-Received: by mta LLVX03; Relayed; Tue, 01 Dec 1998 16:05:52 -0500
- Posting-date: Tue, 01 Dec 1998 16:05:00 -0500 (EST)
- Priority: normal
- UA-content-id: C2361ZXRHMZSMB
- X400-MTS-identifier: [;25506110218991/5868708@LLDMPC]
Someone wrote:
Subject: Nd-144
Is there any rational for exempting Neodymium-144 (half-life 2.4E15 yr)
from rad safety concern?
I assume the main reason is the extremely low specific activity- I calculate
970 kg per microcurie.
John Laferriere
DuPont Pharmaceuticals Co.
Medical Imaging Division
john.r.laferriere@dupontpharma.com
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html