One cent of reactivity is therefore 1/100 of the reactivity needed to go prompt critical.
Dan Burnfield, CHP PE
Defense Nuclear Facilities Safety Board
625 Indiana Ave, NW Ste. 700
Washington, DC 20004
Tel: 202.694.7113
Fax: 202.208.6518
Email danb@dnfsb.gov
>>> "Ruyter, David S." <David.Ruyter@pseg.com> 08/08/00 10:53AM >>>
One dollars worth of reactivity is that amount of excess reactivity that
will cause a reactor to go prompt critical (i.e., no reliance on delayed
neutrons to maintain criticality). One inhour of excess reactivity results
in a reactor period of one hour.
-----Original Message-----
From: bbailey@handrtech.com [mailto:bbailey@handrtech.com]
Sent: Tuesday, August 08, 2000 10:35 AM
To: Multiple recipients of list
Subject: Reactivity Units
I am currently reviewing some safety documents and have run into some units
I am
unfamiliar with concerning reactivity. The reports refer to so many dollars
worth of positive or negative reactivity addition to an assembly of
fissionable
materials. Units are in $ and cents. Can a dollars' worth of additional
reactivity be defined? How?
Respond privately to: bbailey@handrtech.com
Thank you.
=====================================================================
H&R
TECHNICAL ASSOCIATES, INC.
Brian Bailey
H&R Technical Associates, Inc.
P.O. Box 4159
Oak Ridge, TN 37831-4159
bbailey@handrtech.com
(865) 483-0248
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html