Chromium-51 calibrating neutrino source

Journal Article · Fri Dec 31 04:00:00 EST 1993 · Transactions of the American Nuclear Society

OSTI ID:107497

Demchenko, N F; Karasev, V I; Karelin, E A ^[1]

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1. V.I. Lenin Research Institute of Atomic Reactors (Russian Federation); and others

The problem for measurement of the sun neutrino flux is resolved at the specially made Baksansk neutrino telescope and calls for calibration of registration system. For this a man made neutrino source is required with the known yield of particles and intensity comparable with the intensity of the measured subject. The most suitable radionuclide for production of this source is chromium-51 the radionuclide decay of which is accompanied with neutrino radiation. At the Research Institute of Atomic Reactors (in Dimitrovgrad) the production technology is developed as well as the closed chromium-51 neutrino source is made of 4 x 10{sup 5} Ci activity. The parts of active source made in the form of core of metallic isotope-enriched chromium were irradiated in the high flux neutron trap of the SM-2 reactor. The sources were subsequently assembled at the shield cells with remote equipment application. The source was certificated as a special form radioactive material. Due to low half-life of chromium-51 (T 1/2 - 27 hours) all the operations on assembly, certification and delivery of source to the Baksansk Laboratory were performed at the earliest possible date (less than 3 days).

• OSTI ID: 107497
• Report Number(s): CONF-920957--
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Journal Issue: Suppl.1 Vol. 67; ISSN 0003-018X; ISSN TANSAO
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
CALIBRATION
CHROMIUM 51
DECAY
DETECTION
ISOTOPE PRODUCTION
SM-2 REACTOR
SOLAR NEUTRINOS