Published April 1980 | Version v1
Report Metadata-only

A model to evaluate the environmental neutron dose due to skyshine phenomenon

Creators

  • 1. Tokyo Univ., Tanashi (Japan). Inst. for Nuclear Study

Description

The skyshine of neutrons produced upward normally from the various monoenergetic neutron sources fixed on the ground has been performed systematically by the Monte Carlo calculation. The calculated skyshine neutron spectra approach an approximate equilibrium spectrum which is close to 1/E spectrum in the KeV region, beyond about a few hundred meter far from the source. The total neutron flux PHI(r) and dose D(r) at the distance r, are well fitted to a simple formula, PHI(r) = Q/r x e sup(-r/lambda) and D(r) = Q/r x e sup(-r/lambda), and the constants, Q and lambda, are only dependent to the source neutron energy. (author)

Additional details

Publishing Information

Imprint Title
Proceedings of the 3rd KEK symposium on radiation dosimetry
Imprint Pagination
151 p.
Journal Page Range
p. 3-19.
Report number
KEK--80-1

Conference

Title
3. KEK symposium on radiation dosimetry.
Dates
4 Dec 1979.
Place
Oho, Ibaraki (Japan).

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
14806285
Subject category
S61: RADIATION PROTECTION AND DOSIMETRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
AIR; ENVIRONMENT; MONTE CARLO METHOD; NEUTRON SOURCES; NUCLEAR FACILITIES; RADIATION DOSES; SPATIAL DISTRIBUTION; STRAY RADIATION
Descriptors DEC
DISTRIBUTION; FLUIDS; GASES; PARTICLE SOURCES; RADIATION SOURCES; RADIATIONS