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

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

التفاصيل البيبلوغرافية
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]
مؤلفون آخرون: Petricca F., Angloher G., Cozzini C., Frank T., Hauff D., Ninkovic J., Probst F., Seidel W., Uchaykin S. V. Sergey Victorovich
الملخص: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
اللغة:الإنجليزية
منشور في: 2004
الموضوعات:
труды учёных ТПУ
электронный ресурс
Темная Материя
Dark matter
CaWO4
детекторы
الوصول للمادة أونلاين:http://www.sciencedirect.com/science/article/pii/S0168900203032005
https://publications.mpp.mpg.de/?action=search&mpi=MPP-2003-40
التنسيق: الكتروني فصل الكتاب
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637163

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