2023 Fiscal Year Research-status Report
Development of radiation-resistant superconducting detector arrays for satellite missions in the millimetre waveband
| Project/Area Number |
22K14060
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| Research Institution | Okayama University |
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Principal Investigator |
Stever Samantha 岡山大学, 環境生命自然科学学域, 助教 (20842991)
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| Project Period (FY) |
2022-04-01 – 2025-03-31
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| Keywords | phonon mitigation / microwave detector / resonator |
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| Outline of Annual Research Achievements |
During the research period so far, we have collaborated with AIST (Tsukuba) to fabricate several microwave resonator designs with varying low T_c films for phonon absorption. We have characterised these detectors at Okayama University, and also at Paris-Saclay university for an aluminium-backed detector requiring subkelvin cryogenics.
We have produced a microwave circuit at room temperature which allows us to measure two detectors in the time domain simultaneously. We are in the process of using this circuit to measure the co-incidence from laser pulses or radiation, in order to verify the phonon absorption of the thin film.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
It is progressing smoothly.
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| Strategy for Future Research Activity |
We plan to produce another aluminium thin film backed device because the current one has an electrical short. Following that, we will characterise its frequency response before irradiating it again in a dilution fridge at KEK (Tsukuba).
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| Causes of Carryover |
We plan to fabricate an array to replace the array which malfunctioned. We are also working on a new interface with which to interact with the detector.
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