Cryogenic detection of 7Be with beryllium metal absorber for lithium solar neutrino experiment

Massimiliano Galeazzi, G. Gallinaro, F. Gatti, P. Meunier, S. Vitale, A. Kopylov, E. Yanovich

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A cryogenic micro-calorimeter to detect the 7Be electron capture decay has been developed. The detector absorber is a beryllium metal foil which has been previously irradiated by protons in order to produce the 7Be isotope. The 112 eV spectral line corresponding to the 7Be K-capture decay to the 7Li ground state (Auger-electron plus the nuclear recoil energy) has been successfully detected with an energy resolution of 53 eV FWHM. The observed decrease in the rate of the absorber activity corresponds to the expected 7Be half-life. The obtained results show that the 112 eV 7Be spectral line can be detected by a cryogenic μ-calorimeter with an efficiency close to 100%. This cryogenic method solves the principal problem in the development of a lithium radiochemical solar neutrino detector.

Original languageEnglish (US)
Pages (from-to)317-321
Number of pages5
JournalNuclear Inst. and Methods in Physics Research, A
Volume401
Issue number2-3
DOIs
StatePublished - Dec 21 1997
Externally publishedYes

Fingerprint

Beryllium
solar neutrinos
beryllium
Cryogenics
cryogenics
absorbers
Lithium
lithium
Calorimeters
calorimeters
line spectra
Metals
metals
Detectors
metal foils
Electrons
Experiments
detectors
decay
Full width at half maximum

Keywords

  • Electron capture
  • Lithium detector
  • Micro-calorimeter
  • Solar neutrinos

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Cryogenic detection of 7Be with beryllium metal absorber for lithium solar neutrino experiment. / Galeazzi, Massimiliano; Gallinaro, G.; Gatti, F.; Meunier, P.; Vitale, S.; Kopylov, A.; Yanovich, E.

In: Nuclear Inst. and Methods in Physics Research, A, Vol. 401, No. 2-3, 21.12.1997, p. 317-321.

Research output: Contribution to journalArticle

Galeazzi, Massimiliano ; Gallinaro, G. ; Gatti, F. ; Meunier, P. ; Vitale, S. ; Kopylov, A. ; Yanovich, E. / Cryogenic detection of 7Be with beryllium metal absorber for lithium solar neutrino experiment. In: Nuclear Inst. and Methods in Physics Research, A. 1997 ; Vol. 401, No. 2-3. pp. 317-321.
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AU - Gallinaro, G.

AU - Gatti, F.

AU - Meunier, P.

AU - Vitale, S.

AU - Kopylov, A.

AU - Yanovich, E.

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