Low-threshold sapphire detector for rare event searches

Verma, S.; Maludze, S.; Lee, M.; Chaudhuri, M.; Iyer, V.; Kashyap, Varchaswi; Kubik, A.; Lin, Y.-T.; Mahapatra, R.; Mirabolfathi, N.; Mishra, Naveen; Mohanty, B.; Neog, H.; Jastram, A.; Platt, Mark

doi:10.1016/j.nima.2022.167634

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…In addition to their excellent signal to noise, phonon-mediated detectors offer an interactiontype independent (nuclear or electron recoil) energy measurement. Many groups have recently achieved energy resolution within the O(eV) scale [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Energy loss due to defect creation in solid state detectors

Heikinheimo

Sassi

Tuominen

et al. 2023

SciPost Phys. Proc.

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The threshold displacement energy in solid state detector materials varies from several eV to \lesssim≲ 100 eV. If a stable or long lived defect is created as a result of a nuclear recoil event, some part of the recoil energy is stored in the deformed lattice and is therefore not observable in a phonon detector. Thus, an accurate model of this effect is necessary for precise calibration of the recoil energy measurement in low threshold phonon detectors. Furthermore, the sharpness of the defect creation threshold varies between materials. For a hard material such as diamond, the sharp threshold will cause a sudden onset of the energy loss effect, resulting in a prominent peak in the observed recoil spectrum just below the threshold displacement energy. We describe how this effect can be used to discriminate between nuclear and electron recoils using just the measured recoil spectrum.

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Section: Introductionmentioning

confidence: 99%

Energy loss due to defect creation in solid state detectors

Heikinheimo

Sassi

Tuominen

et al. 2023

SciPost Phys. Proc.

View full text Add to dashboard Cite

show abstract

“…In addition to their excellent signal to noise, phonon-mediated detectors offer an interaction-type independent (nuclear or electron recoil) energy measurement. Many groups have recently achieved energy resolution within the O(eV) scale [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Energy loss due to defect creation in solid state detectors

Heikinheimo¹,

Sassi²,

Tuominen³

et al. 2022

Preprint

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The threshold displacement energy in solid state detector materials varies from several eV to 100 eV. If a stable or long lived defect is created as a result of a nuclear recoil event, some part of the recoil energy is stored in the deformed lattice and is therefore not observable in a phonon detector. Thus, an accurate model of this effect is necessary for precise calibration of the recoil energy measurement in low threshold phonon detectors. Furthermore, the sharpness of the defect creation threshold varies between materials. For a hard material such as diamond, the sharp threshold will cause a sudden onset of the energy loss effect, resulting in a prominent peak in the observed recoil spectrum just below the threshold displacement energy. We describe how this effect can be used to discriminate between nuclear and electron recoils using just the measured recoil spectrum.

show abstract

Characterization of Sapphire Detector for CE$$\upnu $$NS Search at MINER

Chaudhuri

2023

Springer Proceedings in Physics

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Low-threshold sapphire detector for rare event searches

Cited by 4 publications

References 21 publications

Energy loss due to defect creation in solid state detectors

Energy loss due to defect creation in solid state detectors

Energy loss due to defect creation in solid state detectors

Characterization of Sapphire Detector for CE$$\upnu $$NS Search at MINER

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