[16a-1E-1~11] 3.8 Optical measurement, instrumentation, and sensor

▼ [16a-1E-4] Development of Cavity Ring-Down Spectroscopy for ¹⁴Carbon Isotope Analysis of Biomedical Samples

〇(P)Volker Sonnenschein¹, Hideki Tomita¹, Takahiro Hirotsu¹, Satoshi Yuruzume¹, Ryohei Terabayashi¹, Noriyoshi Hayashi¹, Lei Jin¹, Masahito Yamanaka², Norihiko Nishizawa¹, Atsushi Satou², Akane Omori², Akira Ideno², Toshinari Oh-hara², Tetsuo Iguchi¹ (1.Nagoya Univ., 2.Sekisui Medical Co.)

Keywords:spectroscopy,carbon isotope,medical

Cavity ring-down spectroscopy is a highly sensitive technique for trace gas analysis. We are developing a system for isotope ratio determination of carbon-14 in medical samples based on absorption in the NIR to MIR wavelength region. The current status of our prototype system for cavity-ringdown spectroscopy as well as an outlook for an improved design will be given.