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Journal Articles

Estimation of deposition velocities of HT and $^{14}$ CO $_{2}$ and their fluxes from surface environment with a development of a simultaneous sampling system for the speciation of atmospheric H-3 and C-14

Amano, Hikaru; Koarashi, Jun*; Koma, T.*; Atarashi-Andoh, Mariko; Iida, Takao*

JAERI-Conf 2003-010, p.221 - 225, 2003/09

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2003-010.pdf

Concerning atmospherically released tritium (T) and C-14 we have developed a new method, which can analyze their fluxes and the deposition velocities. Firstly, a simultaneous sampling system for the speciation of atmospheric tritium and C-14 has been developed. This system determines varieties of chemical forms of tritium and C-14, namely tritiated water (HTO), elemental tritium gas (HT) and tritiated methane (CH $_{3}$ T) for tritium, $^{14}$ CO $_{2}$ and 14C H4 for C-14, respectively. Secondly, a new method was developed to determine HT and $^{14}$ CO $_{2}$ deposition velocities. This method can determine their fluxes and the deposition velocities without any tritium and C-14 sources.