Annealing of proton radiation damages in Si-PM at room temperature

Hirade, Naoyoshi; Takahashi, H.; Uchida, Naoshige; Ohno, M.; Torigoe, Kento; Fukazawa, Yasushi; Mizuno, T.; Matake, Hiroto; Hirose, Kazuki; Hisadomi, Syouhei; Nakazawa, K.; Yamaoka, K.; Werner, Norbert; Řípa, J.; Hatori, S.; Kume, Kazuhiko; Mizushima, Satoshi

doi:10.1016/j.nima.2020.164673

Cited by 13 publications

(9 citation statements)

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“…Another advantage compared to MAPMTs is that the detectors can be operated at much lower voltages (several tens of Volts instead of kV). The main drawback of using SiPMs is the high dark noise, especially at high temperatures or after exposition to radiation (see [10] and [11]). In order to reduce this dark current, a cooling system based on thermo-electric cooling devices (Peltier elements) has been designed.…”

Section: Pos(icrc2021)580mentioning

confidence: 99%

“…Thermal simulations using the Abaqus software from Dassault Systèmes® as well as polarimeter modulelevel tests [12] are currently performed in order to optimize the design of this cooling system. Although a similar kind of SiPMs has already been irradiated (see [10] and [11] for the irradiation of the 50 m microcells SiPMs), an irradiation campaign is planned on the S13361-6075PE arrays, as well as on some FEE components, in order to precisely characterize the behavior of such devices after being exposed to radiations. The scintillator material is the same as that used in POLAR (EJ-248M from Eljen Technology), but the bars have been reshaped to 5.9×5.9×125mm 3 .…”

Section: Pos(icrc2021)580mentioning

confidence: 99%

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Development and science perspectives of the POLAR-2 instrument: a large scale GRB polarimeter

Angelis

Burgess²,

Cadoux³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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Section: Pos(icrc2021)580mentioning

confidence: 99%

Section: Pos(icrc2021)580mentioning

confidence: 99%

Development and science perspectives of the POLAR-2 instrument: a large scale GRB polarimeter

Angelis

Burgess²,

Cadoux³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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show abstract

“…Thermal simulations using the Abaqus software from Dassault Systèmes® as well as polarimeter modulelevel tests [12] are currently performed in order to optimize the design of this cooling system. Although a similar kind of SiPMs has already been irradiated (see [10] and [11] for the irradiation of the 50𝜇m microcells SiPMs), an irradiation campaign is planned on the S13361-6075PE arrays, as well as on some FEE components, in order to precisely characterize the behavior of such devices after being exposed to radiations. The scintillator material is the same as that used in POLAR (EJ-248M from Eljen Technology), but the bars have been reshaped to 5.9×5.9×125mm 3 .…”

Section: Overall Instrument Designmentioning

confidence: 99%

Development and science perspectives of the POLAR-2 instrument: a large scale GRB polarimeter

De Angelis,

Burgess,

Cadoux

et al. 2021

Preprint

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Despite several decades of multi-wavelength and multi-messenger spectral observations, Gamma-Ray Bursts (GRBs) remain one of the big mysteries of modern astrophysics. Polarization measurements are essential to gain a more clear and complete picture of the emission processes at work in these extremely powerful transient events. In this regard, a first generation of dedicated 𝛾-ray polarimeters, POLAR and GAP, were launched into space in the last decade. After 6 months of operation, the POLAR mission detected 55 GRBs, among which 14 have been analyzed in detail, reporting a low polarization degree and a hint of a temporal evolution of the polarization angle. Starting early 2024 and based on the legacy of the POLAR results, the POLAR-2 instrument will aim to provide a catalog of high quality measurements of the energy and temporal evolution of the GRB polarization thanks to its large and efficient polarimeter. Several spectrometer modules will additionally allow to perform joint spectral and polarization analyzes. The mission is foreseen to make high precision polarization measurements of about 50 GRBs every year on board of the China Space Station (CSS). The technical design of the polarimeter modules will be discussed in detail, as well as the expected scientific performances based on the first results of the developed prototype modules.

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“…29 One study shows that for Hamamatsu 14160-6050HS the performance degradation -in terms of dark current and noise threshold -due to 200 MeV protons recovers over time, as it undergoes an annealing process at room temperature. 30 Another study reports that heavy-ion irradiation causes an increased dark current and a worse energy resolution, but the effect is overall mild. 31 Clearly, more testing of radiation damage on SiPM is required.…”

Section: Individual Detector Unit Characterizationmentioning

confidence: 99%

GALI: a Gamma-ray Burst Localizing Instrument

Rahin,

Moleri,

Vdovin

et al. 2021

Preprint

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The detection of astrophysical Gamma-Ray Bursts (GRBs) has always been intertwined with the challenge of identifying the direction of the source. Accurate angular localization of better than a degree has been achieved to date only with heavy instruments on large satellites, and a limited field of view. The recent discovery of the association of GRBs with neutron star mergers gives new motivation for observing the entire γ-ray sky at once with high sensitivity and accurate directional capability. We present a novel γ-ray detector concept, which utilizes the mutual occultation between many small scintillators to reconstruct the GRB direction. We built an instrument with 90 (9 mm) 3 CsI(Tl) scintillator cubes attached to silicon photomultipliers. Our laboratory prototype tested with a 60 keV source demonstrates an angular accuracy of a few degrees for ∼25 ph cm −2 bursts. Simulations of realistic GRBs and background show that the achievable angular localization accuracy with a similar instrument occupying 1l volume is < 2 • . The proposed concept can be easily scaled to fit into small satellites, as well as large missions.

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Annealing of proton radiation damages in Si-PM at room temperature

Cited by 13 publications

References 0 publications

Development and science perspectives of the POLAR-2 instrument: a large scale GRB polarimeter

Development and science perspectives of the POLAR-2 instrument: a large scale GRB polarimeter

Development and science perspectives of the POLAR-2 instrument: a large scale GRB polarimeter

GALI: a Gamma-ray Burst Localizing Instrument

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