Radioactive contamination of ZnWO4 crystal scintillators
نویسندگان
چکیده
منابع مشابه
Radioactive contamination of ZnWO4 crystal scintillators
The radioactive contamination of ZnWO4 crystal scintillators has been measured deep underground at the Gran Sasso National Laboratory (LNGS) of the INFN in Italy with a total exposure 3197 kg × h. Monte Carlo simulation, time-amplitude and pulse-shape analyses of the data have been applied to estimate the radioactive contamination of the ZnWO4 samples. One of the ZnWO4 crystals has also been te...
متن کاملRadioactive contamination of scintillators
Low counting experiments (search for double β decay and dark matter particles, measurements of neutrino fluxes from different sources, search for hypothetical nuclear and subnuclear processes, low background α, β, γ spectrometry) require extremely low background of a detector. Scintillators are widely used to search for rare events both as conventional scintillation detectors and as cryogenic s...
متن کاملSearch for rare processes with ZnWO4 crystal scintillators
Radiopure ZnWO4 crystal scintillators with mass (0.1–0.7 kg) have been developed and put in measurement in the Gran Sasso National Laboratories of the INFN to search for rare processes. The radioactive contamination of the crystals have been estimated and the double beta decay of zinc and tungsten isotopes was searched for, reaching a sensitivity at the level of 1018 − 1021 yr; in addition a ne...
متن کاملSearch for 2β decay of Zinc and Tungsten with the help of low-background ZnWO4 crystal scintillators
Double beta processes in 64Zn, 70Zn, 180W, and 186W have been searched for with the help of large volume (0.1 − 0.7 kg) low background ZnWO4 crystal scintillators at the Gran Sasso National Laboratories of the INFN. Total time of measurements exceeds 10 thousands hours. New improved half-life limits on double electron capture and electron capture with positron emission in 64Zn have been set, in...
متن کاملCrystal scintillators for low background measurements
Some general arguments in the light of the application of the inorganic crystal scintillators in the search for rare processes are addressed. The continuous innovation provided by physics, chemistry and technology in their development allows the improvement of their performances. Also the possibility of detectors exploiting new materials is open and the further application to this field of rese...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2011
ISSN: 0168-9002
DOI: 10.1016/j.nima.2010.10.027