Standard method for measuring thermal neutron flux by radioactivation techniques

Book · Mon Jan 01 04:00:00 EST 1973

OSTI ID:4411683

The puroose of this method is to define a general procedure for measuring an unknown thermal neutron flux by neutron activation techniques, It is not practicable to describe completely a technique applicable to the large number of experimental situations that require the measurement of a thermal-neutron flux. Therefore, this method is presented so that the user may adapt to high particular situation the fundamental procedures of the following techniques: (1) technique using pure cobalt metal and cobalt-aluminum alloy (absolute counting of /sup 60/ Co is required); (2) standard foil technique using pure gold, and; (3) secondary standard foil techniques using pure indium, indinm-aluminum alloy, and dysprosium- aluminum alloy. The techniques presented are limited to measurements at room temperatures. However, special problems when making thermal-neutron flux measurements in high-temperaturs environments are discussed, The useful neutron- flux ranges for each detector material are given. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-29-010201
• OSTI ID: 4411683
• Report Number(s): ASTM-E--262-70
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*ACTIVATION DETECTORS-- STANDARDS
*NEUTRON FLUX-- ACTIVATION DETECTORS
ALUMINIUM ALLOYS-- COBALT ALLOYS
ALUMINIUM ALLOYS-- DYSPROSIUM ALLOYS
ALUMINIUM ALLOYS-- INDIUM ALLOYS
FOILS COBALT-- GOLD-- INDIUM
N46110* --Instrumentation--Radiation Detection Instruments-- General Detectors & Monitors
STANDARDS