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Neutron total cross-section measurements of /sup 9/Be, /sup 10/ /sup 11/B, and /sup 12/ /sup 13/C from 1. 0 to 14 MeV using the /sup 9/Be(d,n)/sup 10/B reaction as a ''white'' neutron source

Technical Report ·
DOI:https://doi.org/10.2172/7103368· OSTI ID:7103368
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High-resolution and high-accuracy total cross sections of /sup 9/Be, /sup 10/ /sup 11/B, and /sup 12/ /sup 13/C have been measured from 1.0 to 14 MeV. The Los Alamos Scientific Laboratory (LASL) tandem accelerator was used to produce a ''white'' source of neutrons by stopping a pulsed beam of 15-MeV deuterons in a thick beryllium target. The neutron energy resolution (full width at half maximum (FWHM)) achieved in kiloelectron volts is given by 1.4 E (MeV)/sup /sup 3///sub 2//, and the accuracy of the neutron energy scale in kiloelectron volts is given by +- 0.060 E (MeV) root (1.79 E (MeV) + 0.75). The statistical uncertainties in the transmission vary from 0.5 percent to 2 percent, and the systematic error in the transmission is estimated to +-1.7 percent. The high statistical accuracy of the /sup 11/B data, for example, revealed fine structure at high excitation energy (around 9 MeV) which correlates with the structure observed in charged-particle measurements on the same compound nucleus. There are also indications of additional structures that have not been seen previously in the /sup 12/B compound nucleus at this excitation energy. 17 figures, 2 tables

Research Organization:
Los Alamos Scientific Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
7103368
Report Number(s):
LA-6761
Country of Publication:
United States
Language:
English

Similar Records

Neutron total cross-section measurements of /sup 9/Be, /sup 10/ /sup 11/B, and /sup 12/ /sup 13/C from 1. 0 to 14 MeV using the /sup 9/Be(d,n)/sup 10/B reaction as a white neutron source. [10 to 14 MeV]
Journal Article · Sun Dec 31 23:00:00 EST 1978 · Nucl. Sci. Eng.; (United States) · OSTI ID:6248054
/sup 10/B+ /sup 13/C and /sup 11/B+ /sup 12/C reactions from 4 to 9 MeV/nucleon
Journal Article · Thu Feb 28 23:00:00 EST 1985 · Phys. Rev. C; (United States) · OSTI ID:5990762
NEUTRON TOTAL CROSS SECTIONS OF Be, B$sup 10$, B, C, AND O
Journal Article · Sat Jul 01 00:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D · OSTI ID:4028510

Related Subjects

651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
BERYLLIUM 9 TARGET
BORON 10 TARGET
BORON 11 TARGET
CARBON 12 TARGET
CARBON 13 TARGET
CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXCITATION FUNCTIONS
FAST NEUTRONS
FERMIONS
HADRON REACTIONS
HADRONS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NEUTRON REACTIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
TARGETS
TOTAL CROSS SECTIONS