2.5 AND 14.6 MEV NEUTRON CROSS SECTIONS OF Th$sup 230$, Pu$sup 240$, Pu$sup 241$, AND Am$sup 24$$sup 1$

Journal Article · Mon Feb 01 04:00:00 EST 1960 · Atomnaya Energ.

OSTI ID:4195111

Kazarinova, M I; Zamyatin, Yu S; Gorbachev, V M

Cross sections for Th/sup 230/, Pu/sup 240/, Pu/sup 241/, and Am/sup 241/ fis sion by 2.5 and 14.6 Mev neutrons were measured in order to determine and verify the dependence of the neutron energy band f on A (at constant Z) and f(A). The isotopic compositions of thorium and americium were measured by mass spectroscopy. The quantity of Th/sup 230/, Pu/sup 240/, and Am/sup 241/ was determined by the number of emitted alpha particles and by the number of spontaneous fissions. The cross section of Pu/sup 241/ fission by slow neutrons was 1025 plus or minus 10 barns. Cross sections for 14.6-Mev fission were measured by the absolute method. The cross sections of Th/sup 230/ fission by 2.5-Mev neutrons were measured in relation to Th/sup 232/. The cross sections of Th/sup 230/ fission by 2.5-Mev neutrons were measured in relation to Th/sup 232/. The cross sections of Pu/sup 240/, Pu/sup 241/, and Am/sup 241/ were measured relative to U/sup 235/. The data are tabulated and correlated with available published data. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-012218
• OSTI ID: 4195111
• Journal Information: Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 8
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALPHA DETECTION
AMERICIUM 241
CROSS SECTIONS
ENERGY
ENERGY RANGE
FAST NEUTRONS
FISSION
ISOTOPES
MASS SPECTROMETERS
MEASURED VALUES
PHYSICS
PLUTONIUM 240
QUANTITY RATIO
STANDARDS
TABLES
THERMAL NEUTRONS
THORIUM 230
THORIUM 232
URANIUM 235