Fabrication of Bismuth Absorber Arrays for NTD-Ge Hard X-ray Microcalorimeters

Ugo Lo Cicero; Andrea Zaffora; Luigi Botta; Monica Santamaria; Daniele Gulli; Marco Barbera; Salvatore Ferruggia Bonura; Francesco Di Franco; null Lo Cicero; Salvatore Ferruggia Bonura; Daniele Gulli; null Varisco; null Collura; null Barbera; null Spoto

Fabrication of Bismuth Absorber Arrays for NTD-Ge Hard X-ray Microcalorimeters

Ugo Lo Cicero, Andrea Zaffora, Luigi Botta, Monica Santamaria, Daniele Gulli, Marco Barbera, Salvatore Ferruggia Bonura, Francesco Di Franco, Lo Cicero, Salvatore Ferruggia Bonura, Daniele Gulli, Varisco, Collura, Barbera, Spoto

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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
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

Cite this

@article{8e9ea1fd9bcb4339983de552d5733548,

title = "Fabrication of Bismuth Absorber Arrays for NTD-Ge Hard X-ray Microcalorimeters",

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.",

author = "{Lo Cicero}, Ugo and Andrea Zaffora and Luigi Botta and Monica Santamaria and Daniele Gulli and Marco Barbera and {Ferruggia Bonura}, Salvatore and {Di Franco}, Francesco and {Lo Cicero} and {Ferruggia Bonura}, Salvatore and Daniele Gulli and Varisco and Collura and Barbera and Spoto",

year = "2020",

language = "English",

volume = "200",

pages = "336--341",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "Springer New York",

}

TY - JOUR

T1 - Fabrication of Bismuth Absorber Arrays for NTD-Ge Hard X-ray Microcalorimeters

AU - Lo Cicero, Ugo

AU - Zaffora, Andrea

AU - Botta, Luigi

AU - Santamaria, Monica

AU - Gulli, Daniele

AU - Barbera, Marco

AU - Ferruggia Bonura, Salvatore

AU - Di Franco, Francesco

AU - Lo Cicero, null

AU - Ferruggia Bonura, Salvatore

AU - Gulli, Daniele

AU - Varisco, null

AU - Collura, null

AU - Barbera, null

AU - Spoto, null

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10447/438698

M3 - Article

VL - 200

SP - 336

EP - 341

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

ER -

Fabrication of Bismuth Absorber Arrays for NTD-Ge Hard X-ray Microcalorimeters

Abstract

All Science Journal Classification (ASJC) codes

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