TY - JOUR
T1 - Towards the TRISTAN detector
T2 - Characterization of a 47-pixel monolithic SDD array
AU - Gugiatti, Matteo
AU - King, Pietro
AU - Fink, David
AU - Houdy, Thibaut
AU - Siegmann, Daniel
AU - Urban, Korbinian
AU - Lechner, Peter
AU - Mertens, Susanne
AU - Fiorini, Carlo
AU - Carminati, Marco
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/2/11
Y1 - 2022/2/11
N2 - Multi-pixel Silicon Drift Detectors (SDD), widely employed in X-ray applications, can also be applied to electron spectroscopy experiments. The objective of the TRISTAN project is to equip the KATRIN beam line with a multi-pixel SDD focal plane array. This would allow to extend the physics program of KATRIN, whose main goal is the determination of the neutrino mass via a precise measurement of the tritium beta decay spectrum close to the endpoint. An extension of the measurement interval would enable a sensitive search for physics beyond the standard model, in particular keV-scale sterile neutrinos, a prime dark matter candidate. The SDD technology guarantees excellent energy resolution and high throughput capabilities. A custom 47-pixel prototype, based on a monolithic SDD tile, has been developed and tested for the TRISTAN project. The full functionality of the system has been verified for all 47 channels. Good spectroscopic performance has been observed with a 55Fe X-ray source. This is a crucial step towards the realization of the final 21-fold 166-pixel TRISTAN focal plane detector.
AB - Multi-pixel Silicon Drift Detectors (SDD), widely employed in X-ray applications, can also be applied to electron spectroscopy experiments. The objective of the TRISTAN project is to equip the KATRIN beam line with a multi-pixel SDD focal plane array. This would allow to extend the physics program of KATRIN, whose main goal is the determination of the neutrino mass via a precise measurement of the tritium beta decay spectrum close to the endpoint. An extension of the measurement interval would enable a sensitive search for physics beyond the standard model, in particular keV-scale sterile neutrinos, a prime dark matter candidate. The SDD technology guarantees excellent energy resolution and high throughput capabilities. A custom 47-pixel prototype, based on a monolithic SDD tile, has been developed and tested for the TRISTAN project. The full functionality of the system has been verified for all 47 channels. Good spectroscopic performance has been observed with a 55Fe X-ray source. This is a crucial step towards the realization of the final 21-fold 166-pixel TRISTAN focal plane detector.
KW - Beta decay
KW - Electron spectroscopy
KW - High-resolution
KW - SDD
KW - Silicon drift detector
KW - Sterile neutrino
UR - http://www.scopus.com/inward/record.url?scp=85121785255&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2021.166102
DO - 10.1016/j.nima.2021.166102
M3 - Article
AN - SCOPUS:85121785255
SN - 0168-9002
VL - 1025
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
M1 - 166102
ER -