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Further measurements of the delayed neutron spectra of /sup 93 -97/Rb and /sup 143 -145/Cs

Conference ·
OSTI ID:5660082
;
A further series of delayed-neutron energy spectral measurements for the fission product precursors /sup 93 -97/Rb and /sup 143 -145/Cs was made using the TRISTAN ISOL facility. The specific goal of these experiments was to improve the spectral definition for each of these isotopes both at the lower energies (below approx.20 keV) and at the higher energies (above approx.800 keV). To that end the following series of experiments was conducted: measurements using a H/sub 2/ gas-filled proportional counter (2.6 Atm. pressure) with pulse-shape discrimination (between beta/gammas and neutron) at a gain setting of 0.3 keV/channel, measurements using a CH/sub 4/ gas-filled proportional counter (5.3 Atm. pressure) at a gain setting of 8 keV/channel; and measurements using a 5.1-cm diameter x 1.27-cm thick BC-501 liquid scintillation detector with pulse-shape discrimination at a neutron gain setting of approx.20 keV/channel. 9 refs., 11 tabs.
Research Organization:
EG and G Idaho, Inc., Idaho Falls (USA)
DOE Contract Number:
AC07-76ID01570
OSTI ID:
5660082
Report Number(s):
EGG-M-29386; CONF-8709206-1; ON: DE87009400
Country of Publication:
United States
Language:
English

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Related Subjects

651720* -- Nuclear Properties & Reactions
A=90-149
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM 143
CESIUM 144
CESIUM 145
CESIUM ISOTOPES
COMPARATIVE EVALUATIONS
DATA
DELAYED NEUTRON PRECURSORS
DISCRIMINATORS
ELECTRONIC CIRCUITS
EXPERIMENTAL DATA
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIQUID SCINTILLATION DETECTORS
MEASURING INSTRUMENTS
MILLISEC LIVING RADIOISOTOPES
NEUTRON SPECTRA
NEUTRON SPECTROMETERS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PROPORTIONAL COUNTERS
PULSE CIRCUITS
PULSE DISCRIMINATORS
RADIATION DETECTORS
RADIOISOTOPES
RUBIDIUM 93
RUBIDIUM 94
RUBIDIUM 95
RUBIDIUM 96
RUBIDIUM 97
RUBIDIUM ISOTOPES
SCINTILLATION COUNTERS
SECONDS LIVING RADIOISOTOPES
SPECTRA
SPECTROMETERS