[20a-C42-1~9] Space photonics for the new space age

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[20a-C42-5] Proposal for Measuring Spacecraft Potential Using a Photonic Charge Detection Sensor

〇(M2)Kousei Otsuka¹, Wataru Takahama¹, Rikuto Hojo², Kazuya Kikunaga³, Kazuhiro Toyoda², Yasushi Takahashi¹ (1.Osaka Met.Univ., 2.Kyushu Institute of Technology., 3.AIST.)

Keywords:

photonic crystal,space,potential Measurement

Our research explores space charge detection using silicon photonic crystals, focusing on spacecraft static electricity issues. Electrons and ions in near-Earth space charge spacecraft surfaces, causing potential differences that lead to electrostatic discharge (ESD). Measuring these potentials is crucial yet challenging. Previously, we demonstrated electron detection in vacuum using photonic crystals, showing high signal-to-noise ratios and resilience to radiation and ESD. Now, we propose using this technology to measure spacecraft potentials, exemplified by experiments in simulated space conditions. This approach shows promise for mitigating ESD risks in space missions.