Light detector development for CRESST II; Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment; Vol. 520, iss. 1-3
| Parent link: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment: Scientific Journal Vol. 520, iss. 1-3.— 2004.— [P. 193-196] |
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| Další autoři: | , , , , , , , , |
| Shrnutí: | Title screen CRESST-II detector modules rely on the ability to actively discriminate electron recoils from nuclear recoils via simultaneous measurement of phonons and scintillation light. The scintillation light produced in each target crystal is detected via an associated calorimeter consisting of a thin silicon wafer read out by a tungsten phase transition thermometer deposited on its surface. About 1% of the energy deposited in CaWO4 is detected as scintillation light; therefore, the sensitivity of the light detector is crucial for the discrimination of electron recoils from nuclear recoils at energies relevant for WIMP searches. We report the detector performance obtained using a thermometer geometry characterized by phonon collectors and a thin film thermal coupling to the heat sink (Fig. 1). This concept allows a high sensitivity by decoupling the area required for the collection of non-thermal phonons and the heat capacity of the sensor. With a 30×30×0.45 mm3 light detector, energy thresholds below 5 keV referred to energy deposition in CaWO4 have been obtained. Results achieved will be presented and an overview on further possibilities of development will be given. Режим доступа: по договору с организацией-держателем ресурса |
| Jazyk: | angličtina |
| Vydáno: |
2004
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| Témata: | |
| On-line přístup: | http://www.sciencedirect.com/science/article/pii/S0168900203032005 https://publications.mpp.mpg.de/?action=search&mpi=MPP-2003-40 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637163 |
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| 200 | 1 | |a Light detector development for CRESST II |f F. Petricca [et al.] | |
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| 300 | |a Title screen | ||
| 330 | |a CRESST-II detector modules rely on the ability to actively discriminate electron recoils from nuclear recoils via simultaneous measurement of phonons and scintillation light. The scintillation light produced in each target crystal is detected via an associated calorimeter consisting of a thin silicon wafer read out by a tungsten phase transition thermometer deposited on its surface. About 1% of the energy deposited in CaWO4 is detected as scintillation light; therefore, the sensitivity of the light detector is crucial for the discrimination of electron recoils from nuclear recoils at energies relevant for WIMP searches. We report the detector performance obtained using a thermometer geometry characterized by phonon collectors and a thin film thermal coupling to the heat sink (Fig. 1). This concept allows a high sensitivity by decoupling the area required for the collection of non-thermal phonons and the heat capacity of the sensor. With a 30×30×0.45 mm3 light detector, energy thresholds below 5 keV referred to energy deposition in CaWO4 have been obtained. Results achieved will be presented and an overview on further possibilities of development will be given. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |o Scientific Journal | ||
| 463 | |t Vol. 520, iss. 1-3 |v [P. 193-196] |d 2004 | ||
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a Темная Материя | |
| 610 | 1 | |a Dark matter | |
| 610 | 1 | |a CaWO4 | |
| 610 | 1 | |a детекторы | |
| 701 | 1 | |a Petricca |b F. | |
| 701 | 1 | |a Angloher |b G. | |
| 701 | 1 | |a Cozzini |b C. | |
| 701 | 1 | |a Frank |b T. | |
| 701 | 1 | |a Hauff |b D. | |
| 701 | 1 | |a Ninkovic |b J. | |
| 701 | 1 | |a Probst |b F. | |
| 701 | 1 | |a Seidel |b W. | |
| 701 | 1 | |a Uchaykin |b S. V. |c specialist in the field of non-destructive testing |c Engineer of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1963- |g Sergey Victorovich |3 (RuTPU)RU\TPU\pers\32279 | |
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