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http://hdl.handle.net/20.500.12386/34440
Titolo: | Fabrication of Bismuth Absorber Arrays for NTD-Ge Hard X-ray Microcalorimeters | Autori: | FERRUGGIA BONURA, Salvatore GULLI, DANIELE BARBERA, Marco COLLURA, Alfonso SPOTO, DOMENICO Vassallo, Paola VARISCO, Salvatore Santamaria, Monica Di Franco, Francesco Zaffora, Andrea Botta, Luigi LO CICERO, UGO |
Data pubblicazione: | 2020 | Rivista: | JOURNAL OF LOW TEMPERATURE PHYSICS | Numero: | 200 | Fascicolo: | 5-6 | Da pagina:: | 336 | Abstract: | The high-spectral-resolution detection of hard X-rays (E > 20 keV) is a challenging and nearly unexplored area in space astrophysics. Traditionally hard X-ray detectors present moderate spectral resolutions, although few tens of eV one could open new frontiers in the study of nuclear processes and high-temperature plasma dynamics in energetic processes. This can be achieved by using cryogenic microcalorimeters. Within a research activity aimed at developing arrays of neutron transmutation-doped germanium (NTD-Ge) microcalorimeters for the high-spectral-resolution detection (about 50 eV@60 keV) of hard X-rays (20 keV < E<100 keV), we developed an electroplating process to fabricate high-thickness (> 60 μm) bismuth absorber arrays. The adopted technological process and the study of related process parameters are discussed; preliminary results on produced arrays are given. | Acknowledgments: | This research has been supported by Istituto Nazionale di Astrofisica (INAF) and Agenzia Spaziale Italiana (ASI), in the framework of the MISTER-X balloon-borne experiment preliminary activities. The authors thank prof. Giuseppe Lullo of Dipartimento di Ingegneria—Università di Palermo—for relevant support in patterning the microlithographic mask. | URI: | http://hdl.handle.net/20.500.12386/34440 | URL: | https://link.springer.com/article/10.1007/s10909-020-02475-6 https://api.elsevier.com/content/abstract/scopus_id/85085309987 |
ISSN: | 0022-2291 | DOI: | 10.1007/s10909-020-02475-6 | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
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