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Fiducial Volume of the Edelweiss Germanium Bolometers for Dark Matter Search Using Cosmogenic Activation

J. Domange 1 E. Armengaud 2 A. Broniatowski 1 G. Gerbier 2
1 CSNSM PS1
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
Abstract : In this work, we use 10.36 and 8.98 keV X-rays originating from the decay of Ge-68 and Zn-65 which are homogeneously produced in a Ge crystal in order to evaluate the fiducial volume of a 400 g coplanar grid HP-Ge bolometers in operation in the Edelweiss-II experiment. Different energy estimators are tested on the experimental data and a fiducial fraction of (39.9 +/- 5)% is found. The results are compared to simulations taking into account the anisotropy of the electron transport in Ge.
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Submitted on : Friday, June 1, 2012 - 10:45:10 AM
Last modification on : Wednesday, September 16, 2020 - 5:38:31 PM

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J. Domange, E. Armengaud, A. Broniatowski, G. Gerbier. Fiducial Volume of the Edelweiss Germanium Bolometers for Dark Matter Search Using Cosmogenic Activation. Journal of Low Temperature Physics, Springer Verlag (Germany), 2012, 167, pp.1154-1159. ⟨10.1007/s10909-012-0566-y⟩. ⟨in2p3-00703203⟩

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