RESULTS FROM THE FIRST ADVANCED NEUTRON NDA WORKSHOP

Year
1999
Author(s)
P.M. Rinard - Los Alamos National Laboratory
D.G. Langner - Los Alamos National Laboratory
J.E. Stewart - Los Alarnos National Laboratory
R. Siebelist - Los Alamos National Laboratory
F. Hsue - Los Alamos National Laboratory
N. Ensslin - Los Alamos National Laboratory
H.A. Smith - Los Alamos National Laboratory
M. S. Krick - Los Alamos National Laboratory
Rich Thomason - Westinghouse Savannah River Company
Abstract
This paper describes the first Advanced Neutron Nondestructive Assay (NDA) Workshop given at Los Alamos in March 1999 as part of the US Department if Energy (DOE), Office of Safeguards and Security, Nonproliferation and National Security Institute (NNSI), training program. The workshop provided training modules in the application of advanced neutron coincidence-based and delayed neutron-based assay techniques for accountability and verification measurements of bulk plutonium and uranium samples at DOE facilities. The new training materials covered the following four major NDA techniques: passive neutron coincidence counting, passive neutron multiplicity counting, active neutron coincidence counting, and shuffler assay bulk uranium. This paper will describe the new workshop, report on the measurement results obtained, and summarize instructor and attendee discussions on application of these techniques in DOE facilities.