Published 1983
| Version v1
Journal article
Reflection of 252Cf fission neutrons from a concrete floor
Description
The effect of 252Cf fission neutrons reflected from a concrete floor on the response of 235U in a NBS fission chamber was measured. The reflected neutrons contribute 0.12% of the response at the usual source-detector distance of 5 cm. By varying the source height above the floor, the relative contributions of reflected neutrons are as high as 300%. The contribution from reflected neutrons varies as the inverse square of the distance of the detector from the image source created by regarding the floor as a mirror. (author)
Additional details
Publishing Information
- Journal Title
- Radiat. Prot. Dosim.
- Journal Volume
- 5
- Journal Issue
- 4
- Series
- Radiat. Prot. Dosim.
- Journal Page Range
- 227-231
- ISSN
- 0144-8420
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 15056435
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES;
- Descriptors DEI
- CALIFORNIUM 252; CONCRETES; FISSION CHAMBERS; FISSION NEUTRONS; REFLECTION; STRAY RADIATION; URANIUM 235
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BARYONS; BUILDING MATERIALS; CALIFORNIUM ISOTOPES; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HEAVY NUCLEI; IONIZATION CHAMBERS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATERIALS; MEASURING INSTRUMENTS; MINUTES LIVING RADIOISOTOPES; NEUTRON DETECTORS; NEUTRONS; NUCLEI; NUCLEONS; RADIATION DETECTORS; RADIATIONS; RADIOISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES