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PreprintCC BY 4.0HAL

Precise measurement of the thermal quenching factor of alpha particles in Li2MoO4 cryogenic calorimeters

  • M Girola
  • R Serino
  • M Biassoni
  • C Brofferio
  • M Faverzani
  • E Ferri
  • A Gianvecchio
  • L Gironi
  • I Nutini
  • S Pozzi
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Abstract

We present direct measurements of the thermal quenching factor (QF)for alpha-particles in Li2MoO4 scintillating crystals, conducted at base temperatures of 13 mK and 19 mK. Using gamma-calibration peaks from a 232Th source and alpha-lines from a surface 224Ra source, the QF_alpha was determined to range from 1.07 to 1.09 which is consistent with previous studies. A slight energy-dependent trend in QF_alpha was observed.

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Cite

BibTeXRIS
BibTeX
@misc{girola2026precise,
  title = {{Precise measurement of the thermal quenching factor of alpha particles in Li$_2$MoO$_4$ cryogenic calorimeters}},
  author = {M Girola and R Serino and M Biassoni and C Brofferio and M Faverzani and E Ferri and A Gianvecchio and L Gironi and I Nutini and S Pozzi},
  howpublished = {HAL},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.23160},
  eprint = {2609.23160},
  archivePrefix = {arXiv},
  url = {https://hal.science/hal-05767357v1},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Precise measurement of the thermal quenching factor of alpha particles in Li_2MoO_4 cryogenic calorimeters
AU  - M Girola
AU  - R Serino
AU  - M Biassoni
AU  - C Brofferio
AU  - M Faverzani
AU  - E Ferri
AU  - A Gianvecchio
AU  - L Gironi
AU  - I Nutini
AU  - S Pozzi
PY  - 2026
DA  - 2026/09/19
PB  - HAL
DO  - 10.48550/arxiv.2609.23160
UR  - https://hal.science/hal-05767357v1
AB  - We present direct measurements of the thermal quenching factor (QF)for alpha-particles in Li2MoO4 scintillating crystals, conducted at base temperatures of 13 mK and 19 mK. Using gamma-calibration peaks from a 232Th source and alpha-lines from a surface 224Ra source, the QF_alpha was determined to range from 1.07 to 1.09 which is consistent with previous studies. A slight energy-dependent trend in QF_alpha was observed.
ER  -