Accession Number : AD0669298

Title :   INVESTIGATIONS OF EPITHERMAL NEUTRON SPECTRA BY MEANS OF THIN RESONANCE FOILS (UNTERSUCHUNG EPITHERMISCHER NEUTRONENSPEKTREN MIT DUNNEN RESONANZSONDEN),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Schumann,P. ; Albert,D.

Report Date : 12 OCT 1967

Pagination or Media Count : 13

Abstract : Using the resonance detectors 115In, Au, 152Sm, 186W, La, Mn, and 98Mo epithermal neutron spectra were studied at various points of the RFR core and in the vertical channel 2 of the RFR thermal column in the energy range 1 to 500 ev with respect to their deviations from 1/E behavior. In an air-filled channel at the periphery of the core, alpha = 0.98 + or - 0.02 was found by an absolute determination. The other measurements have been referred to this value. In the vertical channel 2 of the RFR thermal column (distance from the core boundary 60 cm), alpha = 1.04 + or - 0.02. (Author)

Descriptors :   (*THERMAL REACTORS, *NEUTRON SPECTRUM), (*NEUTRON DETECTORS, FOILS(MATERIALS)), THERMAL NEUTRONS, NEUTRON FLUX, MANGANESE, MOLYBDENUM, GOLD, INDIUM, TUNGSTEN, LANTHANUM, SAMARIUM, NEUTRON ACTIVATION, NUCLEAR RESONANCE, REACTOR SYSTEM COMPONENTS, EAST GERMANY

Subject Categories : Fission Reactor Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE