Published September 1988 | Version v1
Report Restricted

Experience with neutron criticality alarm systems at Westinghouse Hanford Company

Creators

Description

The neutron-sensitive criticality alarm system developed at the Hanford Site was installed in a number of buildings and has demonstrated satisfactory performance during approximately 20 yr of operation. Neutron detection is provided by a boron-10 trifluoride (BR3) tube in each detector. A description of the criticality alarm system is provided and the results of testing with short duration radiation pulses are discussed. Early and long-term operating experience is addressed including resolution of operating problems, spurious alarms, and trip levels. Modification, testing, and maintenance of the system is discussed including lessons learned. The commercial neutron-sensitive criticality alarm system was recently installed in a large facility is also described. Important aspects of installing/testing the system and operating experience are discussed. 1 ref., 3 figs

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS, PC A03/MF A01; 1 as DE89001910.

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Publishing Information

Imprint Pagination
11 p.
Report number
WHC-SA--0402

Conference

Title
DOE criticality alarm system workshop.
Dates
20-22 Sep 1988.
Place
Richland, WA (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20016147
Subject category
S42: ENGINEERING; S61: RADIATION PROTECTION AND DOSIMETRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALARM SYSTEMS; BORON FLUORIDES; CRITICALITY; MAINTENANCE; NEUTRON DETECTION; NEUTRON DETECTORS; NEUTRONS; PERFORMANCE; TESTING
Descriptors DEC
BARYONS; BORON COMPOUNDS; DETECTION; ELEMENTARY PARTICLES; FERMIONS; FLUORIDES; FLUORINE COMPOUNDS; HADRONS; HALIDES; HALOGEN COMPOUNDS; MEASURING INSTRUMENTS; NUCLEONS; RADIATION DETECTION; RADIATION DETECTORS

Optional Information

Notes
Portions of this document are illegible in microfiche products.
Secondary number(s)
CONF-8809144--4.