Numerical-experimental method of regenerating the neutron spectrum with respect to fission products

Zaritskaya, T. S.; Kolobashkin, V. M.; Rubtsov, P. M.; Rudik, A. P.; Ruzhanskii, P. A.; Sidorenko, V.D.

doi:10.1007/bf01141252

Cited by 2 publications

(2 citation statements)

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“…90 Sr, 106 Ru and 144 Ce isotopes are fission products found in nuclear reactors and could be extracted from nuclear spent fuel. 42 Ar has to be produced through fast neutron irradiation on 41 Ar, which has a very short half-life (T 1/2 = 109 ms). Production of 42 Ar then requires a challenging double neutron capture starting from 40 Ar.…”

Section: A Neutrino Sourcesmentioning

confidence: 99%

“…The nuclei of interest are the even curium isotopes ( 244,246,248 Cm) because all americium isotopes and odd nucleon number isotopes have very low branching ratio to SF ( 10 −5 %). Berke- Taking into account all these effects shows that the 244 Cm is the most problematic nucleus from the SF induced background point of view, with a 18 y life-time, a branching ratio to SF of 1.4 10 −4 % and a typical production of a few grams per fuel assembly in standard VVER-400 cycles [40,41]. Roughly speaking, the expected production of isotopes heavier than 244 Cm is lower by one order of magnitude per additional nucleon, leading to negligible quantities of Cf and heavy Cm isotopes.…”

Section: Source Induced Neutron Backgroundmentioning

confidence: 99%

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Experimental parameters for a Cerium 144 based intense electron antineutrino generator experiment at very short baselines

Gaffiot

Lasserre²,

Mention³

et al. 2015

Phys. Rev. D

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The standard three-neutrino oscillation paradigm, associated with small squared mass splittings ∆m 2 0.1 eV 2 , has been successfully built up over the last 15 years using solar, atmospheric, long baseline accelerator and reactor neutrino experiments. However, this well-established picture might suffer from anomalous results reported at very short baselines in some of these experiments. If not experimental artifacts, such results could possibly be interpreted as the existence of at least an additional fourth sterile neutrino species, mixing with the known active flavors with an associated mass splitting ∆m 2 new 0.01 eV 2 , and being insensitive to standard weak interactions. Precision measurements at very short baselines (5-15 m) with intense MeVνe emitters can be used to probe these anomalies. In this article, the expectedνe signal and backgrounds of a generic experiment which consists of deploying an intense β − radioactive source inside or in the vicinity of a large liquid scintillator detector are studied. The technical challenges to perform such an experiment are identified, along with quantifying the possible source and detector induced systematics, and their impact on the sensitivity to the observation of neutrino oscillations at short baselines.

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Section: A Neutrino Sourcesmentioning

confidence: 99%

Section: Source Induced Neutron Backgroundmentioning

confidence: 99%