Effect of non-1/v absorbers on thermal-neutron transport in finite size assemblies of water and heavy water

Journal Article · Wed Feb 01 04:00:00 EST 1978 · Nucl. Sci. Eng.; (United States)

OSTI ID:5133705

Bansal, R M; Tewari, S P

The pulsed neutron problem is studied in small but finite sized assemblies of liquid water and heavy water poisoned with such non-1/v neutron absorbers as samarium, cadmium, and gadolinium. It is found that the asymptotic neutron density is markedly dependent on the nature of the non-1/v absorber. For a given buckling, one can find a critical concentration of gadolinium that will give a Maxwellian asymptotic neutron distribution. Thus, a finite assembly in the presence of a definite concentration of gadolinium acts as an infinite assembly. This is not the case with samarium or cadmium.

• Research Organization: Univ. of Delhi
• OSTI ID: 5133705
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 65:2; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

654003* -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
CADMIUM
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
GADOLINIUM
HADRONS
HEAVY WATER
HYDROGEN COMPOUNDS
METALS
NEUTRON TRANSPORT THEORY
NEUTRONS
NUCLEONS
OXYGEN COMPOUNDS
PULSED NEUTRON TECHNIQUES
RARE EARTHS
SAMARIUM
THERMAL NEUTRONS
TRANSPORT THEORY
WATER