Measuring fast-neutron flux density by radioactivation of neptunium-237

Journal Article · Thu Jan 01 04:00:00 EST 1981 · Annu. Book ASTM Stand.; (United States)

OSTI ID:5480936

The method covers procedures for determining fast-neutron flux density, neutrons.cm/sup -2/.s/sup -1/, by assaying a fission product (F.P.) from the fission reaction /sup 237/Np(n,f)F.P. The reaction is useful for measuring neutrons with energies from approximately 0.7 to 6 MeV and for irradiation times up to 30 to 40 years. The method includes a discussion of significance and use, apparatus, procedure, calculations, reporting, precision, and accuracy. (JMT)

• OSTI ID: 5480936
• Journal Information: Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 45; ISSN ABASC
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTIVATION DETECTORS
ALPHA DECAY RADIOISOTOPES
BARYONS
ELEMENTARY PARTICLES
FAST NEUTRONS
FERMIONS
FISSION PRODUCTS
HADRONS
HEAVY NUCLEI
INDUSTRY
ISOTOPES
MATERIALS
MEASURING INSTRUMENTS
NEPTUNIUM 237
NEPTUNIUM ISOTOPES
NEUTRON DETECTORS
NEUTRON FLUX
NEUTRONS
NUCLEAR INDUSTRY
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
RADIATION DETECTORS
RADIATION FLUX
RADIOACTIVATION
RADIOACTIVE MATERIALS
RADIOISOTOPES
STANDARDS
YEARS LIVING RADIOISOTOPES