MEASUREMENT OF THE THERMAL NEUTRON ABSORPTION CROSS SECTION OF BORON BY MEANS OF A TIME OF FLIGHT TECHNIQUE

Technical Report · Tue May 01 04:00:00 EDT 1962

OSTI ID:4767852

Deruytter, A; Debus, G; Lauer, K; Moret, H; Prosdocimi, A

A precise determination of the neutron absorption cross section of boron in the thermal energy region 0.006 to 0.082 ev was undertaken by means of time-of- flight technique. Two samples of deuterated boric acid solution in heavy water were measured, containing respectively 19.81 and 96.51% of B/sup 10/. The following results were obtained (at 0.0253 ev): sample n/sup 0/ 1, sigma /sub a/ = (761 plus or minus 2)b; and sample n/sup 0/ 2, sigma /sub a/ = (3703 plus or minus 9)b; from which the following values for the absorption cross section of B/sup 10/ were respectively derived: sigma /sub a/ (B/sup 10/) = (3840 plus or minus 11)b; and sigma /sub a/, (B/sup 10/) = (3837 plus or minus 9)b. Their weighted mean is equal to (3838 plus or minus 10)b. (auth)

• Research Organization: Mol, Belgium. Centre d'Etude de l'Energie Nucleaire; European Atomic Energy Community
• NSA Number: NSA-17-002220
• OSTI ID: 4767852
• Report Number(s): EUR-12.e
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
BORON 10
BORON OXIDES
CROSS SECTIONS
DEUTERIUM COMPOUNDS
ENERGY RANGE
EV RANGE
HEAVY WATER
MEASURED VALUES
PHYSICS
SOLUTIONS
THERMAL NEUTRONS
TIME OF FLIGHT METHOD