Measurements of the {sup 237}Np(n,f) cross section

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:55633

Carlson, A D ^[1]; Parker, W E ^[2]; Lisowski, P W; Morgan, G L; Seestrom, S J ^[3]; Hill, N W ^[4]; Meggers, K ^[5]

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1. National Inst. of Standards and Technology, Gaithersburg, MD (United States)
2. Lawrence Livermore National Lab., CA (United States)
3. Los Alamos National Lab., NM (United States)
4. Oak Ridge National Lab., TN (United States)
5. Univ. of Kiel, Geesthacht (Germany)

Measurements have been made of the neutron induced fission cross section of {sup 237}Np(n,f) at the Los Alamos Neutron Scattering Center utilizing a white neutron source and a fast parallel multiplate ionization chamber. The {sup 10}B(n,{alpha}) standard cross section was used to establish the energy dependence of the neutron fluence and a very accurately known fission resonance integral for {sup 235}U was used for normalization. The measurements in the resonance region, from 5 eV to 5 keV, indicate that the ENDF/B-VI values are too low by about a factor of three.

• OSTI ID: 55633
• Report Number(s): CONF-930809--; ISBN 0-8031-1899-6
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DATA ACQUISITION
DOSIMETRY
EXPERIMENTAL DATA
FISSION
NEPTUNIUM 237 TARGET
NESDPS Office of Nuclear Energy Space and Defense Power Systems
NEUTRON REACTIONS
NUCLEAR DATA COLLECTIONS
URANIUM 235