Published 1967 | Version v1
Report Open

Measurement of thermal neutrons density by the cadmium filter method

Creators

Description

The cadmium correction factor is defined and measured by the Tittle method for the gold. The author shows that this factor is constant in function of the detector thickness and that the resonant part of the cross section is preponderant for its determination. This property is needful to the cadmium correction factor calculation if, as usual, the effective cut energy variation of the filter is not taken into account with the detector thickness and the cadmium thickness. (A.L.B.)

Availability note (English)

Available from INIS in electronic form

Abstract (French)

Le facteur de correction cadmium est defini, calcule et mesure par la methode de TITTLE pour l'or. On montre qu'il est constant en fonction de l'epaisseur du detecteur et que la partie resonnante de la section efficace est preponderante pour sa determination. Cette propriete est necessaire au calcul du facteur de correction cadmium, si, comme il est fait souvent, on ne tient pas compte de la variation de l'Energie de coupure effective du filtre avec l'epaisseur du detecteur et l'epaisseur du cadmium. (auteur)

Files

35044175.pdf

Files (670.9 kB)

Name Size Download all
md5:18777dacb4afbdafc9bf3dbf33fa8a7d
670.9 kB Preview Download

Additional details

Additional titles

Original title (French)
Mesure des densites de neutrons thermiques par la methode du filtre de cadmium

Publishing Information

Imprint Pagination
30 p.
Report number
CEA-N--820

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
35044175
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
CADMIUM; CORRECTIONS; CROSS SECTIONS; NEUTRON DENSITY; NEUTRON DETECTORS; THERMAL NEUTRONS; THICKNESS
Descriptors DEC
BARYONS; DIMENSIONS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; MEASURING INSTRUMENTS; METALS; NEUTRONS; NUCLEONS; RADIATION DETECTORS

Optional Information

Notes
1 fig. 11 refs.