First Ten kg of Naked Germanium Detectors in Liquid Nitrogen installed in the GENIUS - Test - Facility
نویسنده
چکیده
The first four naked high purity Germanium detectors were installed successfully in liquid nitrogen in the GENIUS-Test-Facility (GENIUS-TF) in the GRAN SASSO Underground Laboratory on May 5, 2003. This is the first time ever that this novel technique aiming at extreme background reduction in search for rare decays is going to be tested underground. First operational parameters are presented.
منابع مشابه
Kr and Ar Background in Genius
GENIUS is a proposal for a large scale detector of rare events like double beta decay, cold dark matter and low-energy solar neutrinos in real time. The idea of GENIUS is to operate a large amount of " naked " Ge detectors in liquid nitrogen, with the aim of reducing the background down to a level of 10 −3 counts/kg keV y. In this work we investigate the contribution to the background of GENIUS...
متن کاملSearching for the Annual Modulation of Dark Matter signal with the GENIUS - TF experiment
The annual modulation of the recoil spectrum observed in an underground detector is well known as the main signature of a possible WIMP signal. The GENIUS-TF experiment, under construction in the Gran Sasso National Laboratory, can search for the annual modulation of the Dark Matter signal using 40 kg of naked-Ge detectors in liquid nitrogen. Starting from a set of data simulated under the hypo...
متن کاملSearch for Double Beta Decay with Hpge Detectors at the Gran Sasso Underground Laboratory
Neutrinoless double-beta (0νββ) decay is practically the only way to establish the Majorana nature of the neutrino mass and its decay rate provides a probe of an effective neutrino mass. Double beta experiments are long-running underground experiments with specific challenges concerning the background reduction and the long term stability. These problems are addressed in this work for the Heide...
متن کاملar X iv : a st ro - p h / 00 05 56 8 v 1 3 0 M ay 2 00 0 Hot and Cold Dark Matter Search with GENIUS ⋆
GENIUS is a proposal for a large volume detector to search for rare events. An array of 40–400 ’naked’ HPGe detectors will be operated in a tank filled with ultrapure liquid nitrogen. After a description of performed technical studies of detector operation in liquid nitrogen and of Monte Carlo simulations of expected background components, the potential of GENIUS for detecting WIMP dark matter,...
متن کاملA Large Scale Double Beta and Dark Matter Experiment : GENIUS
The recent results from the HEIDELBERG–MOSCOW experiment have demonstrated the large potential of double beta decay to search for new physics beyond the Standard Model. To increase by a major step the present sensitivity for double beta decay and dark matter search much bigger source strengths and much lower backgrounds are needed than used in experiments under operation at present or under con...
متن کامل