SPACE AND ENERGY DISTRIBUTION OF NEUTRONS IN BORON CARBIDE (in Russian)
Journal Article
·
· Atomnaya Energ.
OSTI ID:4229460
Studies were made of the space and energy distributions of 3- to 15-Mev neutrons in boron carbide. Reactions H/sup 2/(H/sup 2/, n) He/sup 3/ and H/sup 2/ (H/sup 3/,n)He/sup 4/ were use d as sources for 3-Mev and 15-Mev neutrons, respectively. A proportional counter with BF/sub 3/ enriched up to 88%, a fission chamber with U/sub 235/ (enriched up to 75%) and Th/sup 232/, and threshold indicators of P/sup 31/(n,p)Si/sup 31/, Al/sup 27/(n,p)Mg/sup 27/ , 3/ (n,2n) Cu/sup 62/, and In/sup 115/(n, gamma ) I/sup 116m/ were used as neutron detectors. The results are plotted and tabulated. The ratio of the U/sup 235/ fission cross section sigma /sup 235/ (E/sub eff/) to sigma /sub B/) in (n, alpha ) reactions on B/sup 10/-boron carbide was determined. The ratio of 3-Mev neutron weakening in the region of fixed spectra was 0.97 plus or minus 0.03. The obtained relation was used for finding the effective energy E/sub eff/ = 120 plus or minus 10 kev. (R.V.J.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-018494
- OSTI ID:
- 4229460
- Journal Information:
- Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
Similar Records
THE PROBABILITY RATIO OF THE TERNARY FISSION OF URANIUM-235 AND URANIUM-238 BY NEUTRONS OF VARIOUS ENERGIES
MEASUREMENT OF RADIATIVE-CAPTURE CROSS-SECTIONS FOR FAST NEUTRONS $sup 51$V, $sup 93$Nb, $sup 186$W, AND $sup 205$Tl
RELATIVE YIELDS OF RETARDED NEUTRONS IN U$sup 238$, U$sup 235$, AND Th$sup 232$ FISSION BY FAST NEUTRONS
Journal Article
·
Fri Jan 31 23:00:00 EST 1964
· At. Energ. (USSR)
·
OSTI ID:4009067
MEASUREMENT OF RADIATIVE-CAPTURE CROSS-SECTIONS FOR FAST NEUTRONS $sup 51$V, $sup 93$Nb, $sup 186$W, AND $sup 205$Tl
Journal Article
·
Mon Oct 31 23:00:00 EST 1960
· Atomnaya Energ.
·
OSTI ID:4080184
RELATIVE YIELDS OF RETARDED NEUTRONS IN U$sup 238$, U$sup 235$, AND Th$sup 232$ FISSION BY FAST NEUTRONS
Journal Article
·
Tue Dec 31 23:00:00 EST 1957
· Zhur. Eksptl'. i Teoret. Fiz.
·
OSTI ID:4325738
Related Subjects
ALPHA PARTICLES-- BORON CARBIDES-- BORON FLUORIDES-- BORON 10-- DETECTION-- DIAGRAMS-- DISTRIBUTION-- ENERGY-- ENERGY RANGE-- ENRICHMENT-- FAST NEUTRONS-- FISSION CHAMBERS-- MEV RANGE-- NEUTRON DETECTION-- NUCLEAR REACTIONS-- PROPORTIONAL COUNTERS-- RADIATION DETECTORS-- SPECTRA-- TABLES-- THORIUM 232-- THRESHOLD DETECTORS-- URANIUM 235
ALUMINUM 27-- ANTIMONY 120-- ANTIMONY 121-- COPPER 62-- COPPER 63-- DETECTION-- ENERGY-- EXCITATION-- FAST NEUTRONS-- GAMMA RADIATION-- INDIUM 115-- INDIUM 116-- IRON 56-- MAGNESIUM 27-- MANGANESE-- NEUTRON DETECTION-- NEUTRONS-- NUCLEAR REACTIONS-- PHOSPHORUS 31-- PROTONS-- RADIATION DETECTORS-- SILICON 31--
PHYSICS AND MATHEMATICS
ALUMINUM 27-- ANTIMONY 120-- ANTIMONY 121-- COPPER 62-- COPPER 63-- DETECTION-- ENERGY-- EXCITATION-- FAST NEUTRONS-- GAMMA RADIATION-- INDIUM 115-- INDIUM 116-- IRON 56-- MAGNESIUM 27-- MANGANESE-- NEUTRON DETECTION-- NEUTRONS-- NUCLEAR REACTIONS-- PHOSPHORUS 31-- PROTONS-- RADIATION DETECTORS-- SILICON 31--
PHYSICS AND MATHEMATICS