Bonner sphere measurements of D sub 2 0-moderated and sup 252 Cf source

Conference · Tue Jan 01 04:00:00 EST 1991 · Transactions of the American Nuclear Society; (United States)

OSTI ID:7271899

Hertel, N E; Woodard, R C; Vega-carrillo, H R; Wehring, B W ^[1]

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1. Univ. of Texas, Austin (United States)

On major experimental areas in the new research reactor facility at the University of Texas at Austin (UT) is a 9-m cubical room designed to house a variety of radiation experiments. The room has 1.3-m-thick concrete walls for radiation shielding and provisions for the remote control of radiation experiments. Sources currently available for use in the room include a neutron generator, various strengthed {sup 252}Cf sources, and several large {sup 137}Cs sources. A D{sub 2}O sphere based on the National Institute of Standards and Technology (NIST) D{sub 2}O-moderated {sup 252}Cf source was acquired recently for use in neutron research in the areas of dosimetry and calibration. Several other spherical shells are available for measurements with a {sup 252}Cf source or the neutron generator. Bare {sup 252}Cf and D{sub 2}O-moderated {sup 252}Cf will be used in the room on a regular basis to calibrate neutron survey instruments as well as to continue ongoing research on neutron dosimeter and moderating detector response. The work presented in this paper involves the preliminary investigation into the response of individual Bonner spheres to D{sub 2}O-moderated {sup 252}Cf. As such, it gives insight into the room-return characteristics of this new experimental area and the adequacy of the UT-calculated response matrix for Bonner spheres.

• OSTI ID: 7271899
• Report Number(s): CONF-911107--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 63
• Country of Publication: United States
• Language: English

Related Subjects

440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALI METAL ISOTOPES
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BONNER SPHERE SPECTROMETERS
BUILDING MATERIALS
CALIBRATION
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
CESIUM 137
CESIUM ISOTOPES
CONCRETES
CONTROL
DOSIMETRY
EVEN-EVEN NUCLEI
FUNCTIONS
HEAVY NUCLEI
HEAVY WATER
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATERIALS
MEASURING INSTRUMENTS
MODERATORS
NEUTRON DOSIMETRY
NEUTRON GENERATORS
NEUTRON SOURCES
NEUTRON SPECTROMETERS
NUCLEI
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
PARTICLE SOURCES
RADIATION SOURCES
RADIOISOTOPES
REACTOR COMPONENTS
REACTOR EXPERIMENTAL FACILITIES
REACTORS
REMOTE CONTROL
RESEARCH AND TEST REACTORS
RESEARCH PROGRAMS
RESEARCH REACTORS
RESPONSE FUNCTIONS
SHIELDING
SPECTROMETERS
SPONTANEOUS FISSION RADIOISOTOPES
WATER
YEARS LIVING RADIOISOTOPES