Gamma-ray spectrometry of ultra low levels of radioactivity within the material screening program for the GERDA experiment.
In present and future experiments in the field of rare events physics a background index of 10(-3) counts/(keV kg a) or better in the region of interest is envisaged. A thorough material screening is mandatory in order to achieve this goal. The results of a systematic study of radioactive trace impurities in selected materials using ultra low-level gamma-ray spectrometry in the framework of the GERDA experiment are reported.
Budjás
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Max-Planck-Institut für Kernphysik, POB 103980, D-69029 Heidelberg, Germany.
Gangapshev
A M
AM
Gasparro
J
J
Hampel
W
W
Heisel
M
M
Heusser
G
G
Hult
M
M
Klimenko
A A
AA
Kuzminov
V V
VV
Laubenstein
M
M
Maneschg
W
W
Simgen
H
H
Smolnikov
A A
AA
Tomei
C
C
Vasiliev
S I
SI