Calibration of an NDA neutron monitor for determining process holdup

Conference · Sun Jul 01 00:00:00 EDT 1984 · Nucl. Mater. Manage.; (United States)

OSTI ID:6153293

Doerr, R W; Nicaise, W F

Material holdup in chemical processing lines and equipment creates problems for special nuclear material accountability. A prototype neutron monitor has been built at Los Alamos National Laboratory (Los Alamos) to criteria provided by Rockwell Hanford Operations (Rockwell). The design of this prototype neutron monitor is based on the existing High-Level Neutron Coincidence Counter (HLNCC) technology developed at Los Alamos for use in the nuclear industry. In the present Rockwell application the HLNCC has been adapted for use as an NDA monitor for end-of-campaign calciner holdup measurements within a reprocessing facility. The design and theory of operation of the monitor are briefly discussed. The operating characteristics of the neutron monitor have been observed in detail and are described. Results of in-place calibration of the neutron monitor and the expected quality of NDA measurements that will be made with the monitor are presented.

• Research Organization: Rockwell Hanford Operations, Energy Systems Group, Richland, Washington
• OSTI ID: 6153293
• Report Number(s): CONF-840734-
• Journal Information: Nucl. Mater. Manage.; (United States), Vol. 13; Conference: 25. annual meeting of the Institute of Nuclear Materials Management, Columbus, OH, USA, 15 Jul 1984
• Country of Publication: United States
• Language: English

Related Subjects

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
FUEL REPROCESSING PLANTS
NEUTRON MONITORS
CALIBRATION
DESIGN
CALCINATION
HIGH-LEVEL RADIOACTIVE WASTES
LASL
NEUTRON DETECTION
NONDESTRUCTIVE ANALYSIS
OPERATION
TECHNOLOGY TRANSFER
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DECOMPOSITION
DETECTION
MATERIALS
MEASURING INSTRUMENTS
MONITORS
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
PYROLYSIS
RADIATION DETECTION
RADIATION MONITORS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
THERMOCHEMICAL PROCESSES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTES
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects
050800 - Nuclear Fuels- Spent Fuels Reprocessing