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http://hdl.handle.net/20.500.12386/34846
Titolo: | Electroplated bismuth absorbers for planar NTD-Ge sensor arrays applied to hard x-ray detection in astrophysics | Autori: | FERRUGGIA BONURA, Salvatore GULLI, DANIELE BARBERA, Marco COLLURA, Alfonso SCIORTINO, LUISA SPOTO, DOMENICO TODARO, Michela PUCCIO, ELENA MONTINARO, NICOLA VARISCO, Salvatore Santamaria, M. Di Franco, F. Maniscalco, A. Zaffora, A. Botta, L. LO CICERO, UGO |
Data pubblicazione: | 2018 | Titolo del volume in cui è pubblicato il poster: | High Energy, Optical, and Infrared Detectors for Astronomy VIII | Curatore/i del volume in cui è pubblicato il contributo: | Holland, Andrew D;. Beletic, James | Serie: | PROCEEDINGS OF SPIE | Numero: | 10709 | Da pagina:: | 107092D | Abstract: | Single sensors or small arrays of manually assembled neutron transmutation doped germanium (NTD-Ge) based microcalorimeters have been widely used as high energy-resolution detectors from infrared to hard X-rays. Several planar technological processes were developed in the last years aimed at the fabrication of NTD-Ge arrays, specifically designed to produce soft X-ray detectors. One of these processes consists in the fabrication of the absorbers. In order to absorb efficiently hard X-ray photons, the absorber has to be properly designed and a suitable material has to be employed. Bismuth offers interesting properties in terms of absorbing capability, of low heat capacity (needed to obtain high energy resolution) and deposition technical feasibility, moreover, it has already been used as absorber for other types of microcalorimeters. Here we present the electroplating process we adopted to grow bismuth absorbers for fabricating planar microcalorimeter arrays for hard X-rays detection. The process was specifically tuned to grow uniform Bi films with thickness up to 70 μm. This work is part of a feasibility study for a stratospheric balloon borne experiment that would observe hard X-rays (20-100 keV) from solar corona. | Note: | Copyright 2018 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited. | Titolo del convegno: | High Energy, Optical, and Infrared Detectors for Astronomy VIII | Luogo del convegno: | Austin, Texas, United States | Periodo del convegno: | 10-15 June, 2018 | URI: | http://hdl.handle.net/20.500.12386/34846 | URL: | https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10709/2314195/Electroplated-bismuth-absorbers-for-planar-NTD-Ge-sensor-arrays-applied/10.1117/12.2314195.short https://api.elsevier.com/content/abstract/scopus_id/85053450899 |
ISSN: | 0277-786X | ISBN: | 9781510619715 | DOI: | 10.1117/12.2314195 | Bibcode ADS: | 2018SPIE10709E..2DF | Fulltext: | open |
È visualizzato nelle collezioni: | 3.01 Contributi in Atti di convegno |
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