Modern tendencies in the enrichment of stable isotopes and their applications in the USSR and elsewhere

Tikhomirov, A. V.

doi:10.1016/0168-583x(92)95897-z

Cited by 11 publications

(2 citation statements)

References 4 publications

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“…Enriched chromium was produced by the Kurchatov Institute by gas centrifugation of chromium oxyfluoride, CrO 2 F 2 [25,26]. The highly corrosive CrO 2 F 2 was then hydrolyzed to chromium oxide, Cr 2 O 3 .…”

Section: B Cr Preparationmentioning

confidence: 99%

Measurement of the response of a gallium metal solar neutrino experiment to neutrinos from a51Crsource

Abdurashitov¹,

Гаврин²,

Girin³

et al. 1999

Phys. Rev. C

271

165

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The neutrino capture rate measured by the Russian-American Gallium Experiment is well below that predicted by solar models. To check the response of this experiment to low-energy neutrinos, a 517 kCi source of 51 Cr was produced by irradiating 512.7 g of 92.4%-enriched 50 Cr in a high-flux fast neutron reactor. This source, which mainly emits monoenergetic 747-keV neutrinos, was placed at the center of a 13.1 tonne target of liquid gallium and the cross section for the production of 71 Ge by the inverse beta decay reaction 71 Ga(νe, e − ) 71 Ge was measured to be [5.55 ± 0.60 (stat) ± 0.32 (syst)] × 10 −45 cm 2 . The ratio of this cross section to the theoretical cross section of Bahcall for this reaction is 0.95 ± 0.12 (expt) +0.035 −0.027 (theor) and to the cross section of Haxton is 0.87 ± 0.11 (expt) ± 0.09 (theor). This good agreement between prediction and observation implies that the overall experimental efficiency is correctly determined and provides considerable evidence for the reliability of the solar neutrino measurement. PACS number(s): 26.65.+t, 13.15.+g, 95.85.Ry

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Section: B Cr Preparationmentioning

confidence: 99%

Measurement of the response of a gallium metal solar neutrino experiment to neutrinos from a51Crsource

Abdurashitov¹,

Гаврин²,

Girin³

et al. 1999

Phys. Rev. C

271

165

View full text Add to dashboard Cite

show abstract

“…The chromium used for this experiment was originally in the form of 93% enriched 50 Cr 2 O 3 [12,13]. Achieving high enrichment was an important consideration since it significantly increases the specific activity of the source [14].…”

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confidence: 99%