Published 2002 | Version v1
Report Open

Influence of different moderator materials on characteristics of neutron fluxes generated under irradiation of lead target with proton beams

Creators

  • 1. Joint Institute for Nuclear Reseach, Dubna (Russian Federation)

Description

Neutron fields generated in extended heavy (Z ≥ 82) targets under irradiation with proton beams at energies in the range of 1 GeV are investigated. Influence of different moderators on the spectra and multiplicities of neutrons escaping the surface of the assembly consisting of a lead target (diam. 8 cm x 20 cm or diam. 8 cm x 50 cm) screened by variable thickness of polyethylene or graphite, respectively, was compared. It is shown that the effectiveness of graphite as a material used in such assemblies to moderate spallation neutrons down to thermal energies is significantly lower than that of paraffin

Availability note (English)

Available from INIS in electronic form

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Additional details

Publishing Information

Imprint Pagination
16 p.
Report number
JINR-E--2-2002-258

INIS

Country of Publication
Joint Institute for Nuclear Research (JINR)
Country of Input or Organization
Joint Institute for Nuclear Research (JINR)
INIS RN
34060956
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S43: PARTICLE ACCELERATORS;
Descriptors DEI
GEV RANGE 01-10; GRAPHITE; LEAD 207 TARGET; MODERATORS; MONTE CARLO METHOD; MULTIPLICITY; NEUTRON FLUX; NEUTRON SPECTRA; PARAFFIN; POLYETHYLENES; PROTON BEAMS; SPALLATION; THERMALIZATION; THICKNESS
Descriptors DEC
ALKANES; BEAMS; CALCULATION METHODS; CARBON; DIMENSIONS; ELEMENTS; ENERGY RANGE; GEV RANGE; HYDROCARBONS; MINERALS; NONMETALS; NUCLEAR REACTIONS; NUCLEON BEAMS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OTHER ORGANIC COMPOUNDS; PARTICLE BEAMS; POLYMERS; POLYOLEFINS; RADIATION FLUX; SLOWING-DOWN; SPECTRA; TARGETS; WAXES

Optional Information

Notes
12 refs., 7 figs., 1 tab. Submitted to the journal, Kerntechnik (1987)