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.
Original language | English |
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Pages (from-to) | 336-341 |
Number of pages | 6 |
Journal | Journal of Low Temperature Physics |
Volume | 200 |
Publication status | Published - 2020 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- General Materials Science
- Condensed Matter Physics