Optimization measurement of hydrogen gas concentration by using high accuracy TDLASAlifu Xiafukaiti, Nofel Lagrosas, Masakazu Ogita, Nobuhiko Oi, Yuji Ichikawa, Sachiyo Sugimoto, Ippei Asahi, Shigeru Yamaguchi and Tatsuo ShiinaEPJ Web Conf., 362 (2026) 09021DOI: https://doi.org/10.1051/epjconf/202636209021