تقرير
Performance of TES X-Ray Microcalorimeters Designed for 14.4-keV Solar Axion Search
| العنوان: | Performance of TES X-Ray Microcalorimeters Designed for 14.4-keV Solar Axion Search |
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| المؤلفون: | Yagi, Yuta, Konno, Ryohei, Hayashi, Tasuku, Tanaka, Keita, Yamasaki, Noriko Y., Mitsuda, Kazuhisa, Sato, Rumi, Saito, Mikiko, Homma, Takayuki, Nishida, Yoshiki, Mori, Shohei, Iyomoto, Naoko, Hara, Toru |
| سنة النشر: | 2023 |
| المجموعة: | Astrophysics Physics (Other) |
| مصطلحات موضوعية: | Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors |
| الوصف: | A 57Fe nucleus in the solar core could emit a 14.4-keV monochromatic axion through the M1 transition if a hypothetical elementary particle, axion, exists to solve the strong CP problem. Transition edge sensor (TES) X-ray microcalorimeters can detect such axions very efficiently if they are again converted into photons by a 57Fe absorber. We have designed and produced a dedicated TES array with 57Fe absorbers for the solar axion search. The iron absorber is set next to the TES, keeping a certain distance to reduce the iron-magnetization effect on the spectroscopic performance. A gold thermal transfer strap connects them. A sample pixel irradiated from a 55Fe source detected 698 pulses. In contrast to thermal simulations, we consider that the pulses include either events produced in an iron absorber or gold strap at a fraction dependent on the absorption rate of each material. Furthermore, photons deposited on the iron absorber are detected through the strap as intended. The identification of all events still needs to be completed. However, we successfully operated the TES with the unique design under iron magnetization for the first time. Comment: 10 pages, 6 figures, published in Journal of Low Temperature Physics on 4 February 2023 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s10909-023-02942-w |
| URL الوصول: | http://arxiv.org/abs/2304.07068 |
| رقم الأكسشن: | edsarx.2304.07068 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s10909-023-02942-w |
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