تقرير
Two-Stage Cryogenic HEMT Based Amplifier For Low Temperature Detectors
| العنوان: | Two-Stage Cryogenic HEMT Based Amplifier For Low Temperature Detectors |
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| المؤلفون: | Anczarski, J., Dubovskov, M., Fink, C. W., Kevane, S., Kurinsky, N. A., Mazumdar, A., Meijer, S. J., Phipps, A., Ronning, F., Rydstrom, I., Simchony, A., Smith, Z., Thomas, S. M., Watkins, S. L., Young, B. A. |
| المصدر: | J. Low Temp. Phys. 214, 256 (2024) |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Experiment Physics (Other) |
| مصطلحات موضوعية: | Physics - Instrumentation and Detectors, High Energy Physics - Experiment |
| الوصف: | To search for dark matter candidates with masses below $\mathcal{O}$(MeV), the SPLENDOR (Search for Particles of Light dark mattEr with Narrow-gap semiconDuctORs) experiment is developing novel narrow-bandgap semiconductors with electronic bandgaps on the order of 1-100 meV. In order to detect the charge signal produced by scattering or absorption events, SPLENDOR has designed a two-stage cryogenic HEMT-based amplifier with an estimated charge resolution approaching the single-electron level. A low-capacitance ($\sim$1.6 pF) HEMT is used as a buffer stage at $T=10\,\mathrm{mK}$ to mitigate effects of stray capacitance at the input. The buffered signal is then amplified by a higher-capacitance ($\sim$200 pF) HEMT amplifier stage at $T=4\,\mathrm{K}$. Importantly, the design of this amplifier makes it usable with any insulating material - allowing for rapid prototyping of a variety of novel detector materials. We present the two-stage cryogenic amplifier design, preliminary voltage noise performance, and estimated charge resolution of 7.2 electrons. Comment: 4 pages, 3 figures, 1 table, conference proceedings for LTD20 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s10909-023-03046-1 |
| URL الوصول: | http://arxiv.org/abs/2311.02229 |
| رقم الأكسشن: | edsarx.2311.02229 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s10909-023-03046-1 |
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