Devices for Thermal Conductivity Measurements of Electroplated Bi for X-ray TES Absorbers
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
| Publié: |
2021
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| _version_ | 1866910735230042112 |
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| author | Quaranta, Orlando Gades, Lisa M. Xue, Cindy Divan, Ralu Patel, Umeshkumar M. Guruswamy, Tejas Miceli, Antonino |
| author_facet | Quaranta, Orlando Gades, Lisa M. Xue, Cindy Divan, Ralu Patel, Umeshkumar M. Guruswamy, Tejas Miceli, Antonino |
| contents | Electroplated Bismuth (Bi) is commonly used in Transition-Edge Sensors (TESs) for X-rays because of its high stopping power and low heat capacity. Electroplated Bi is usually grown on top of another metal that acts as seed layer, typically gold (Au), making it challenging to extrapolate its thermoelectric properties. In this work, we present four-wire resistance measurement structures that allow us to measure resistance as a function of temperature of electroplated Bi independently of Au. The results show that the thermal conductivity of the Bi at 3 K is high enough to guarantee the correct thermalization of X-ray photons when used as an absorber for TESs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2111_02503 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Devices for Thermal Conductivity Measurements of Electroplated Bi for X-ray TES Absorbers Quaranta, Orlando Gades, Lisa M. Xue, Cindy Divan, Ralu Patel, Umeshkumar M. Guruswamy, Tejas Miceli, Antonino Instrumentation and Detectors Materials Science Electroplated Bismuth (Bi) is commonly used in Transition-Edge Sensors (TESs) for X-rays because of its high stopping power and low heat capacity. Electroplated Bi is usually grown on top of another metal that acts as seed layer, typically gold (Au), making it challenging to extrapolate its thermoelectric properties. In this work, we present four-wire resistance measurement structures that allow us to measure resistance as a function of temperature of electroplated Bi independently of Au. The results show that the thermal conductivity of the Bi at 3 K is high enough to guarantee the correct thermalization of X-ray photons when used as an absorber for TESs. |
| title | Devices for Thermal Conductivity Measurements of Electroplated Bi for X-ray TES Absorbers |
| topic | Instrumentation and Detectors Materials Science |
| url | https://arxiv.org/abs/2111.02503 |