17-22 July 2016
Master Cutlers Hall
Europe/London timezone

Measurement of the tritium background in the EDELWEISS-III germanium detectors

20 Jul 2016, 15:40
20m
Venue: Cutlers' Banqueting Hall (First Floor); Chair: Klaus Eitel; Session Manager: Jost Migenda ()

Venue: Cutlers' Banqueting Hall (First Floor); Chair: Klaus Eitel; Session Manager: Jost Migenda

Speaker

Dr. Silvia Scorza (KIT)

Description

The EDELWEISS collaboration has operated an array of 24 germanium detectors, with the objective of performing a low WIMP mass search with a total exposure close to 3000 kgd. The experiment is located in the Laboratoire Souterrain de Modane (LSM) and protected by an overburden of rock of 1800m (4800 mwe) that reduces the cosmic ray flux down to 5 μ/m2/d. The energy resolutions achieved with these detectors and the reduction of the external gamma-ray background have made possible for the first time to measure the intensity of the tritium spectrum in germanium detectors. I will describe the aspects of the EDELWEISS-III setup relevant for the measurement, along with the data selection and its analysis. The results will be presented and interpreted in terms of tritium production by cosmic rays.

Primary author

Dr. Silvia Scorza (KIT)

Presentation Materials

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