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Technical Reports of the Meteorological Research Institute

No. 54

Establishment of a cold charcoal trap-gas
chromatography-gas counting system for 85Kr
measurements in Japan and results from 1995 to 2006


Michio Aoyama, Kenji Fujii, Katsumi Hirose,
Yasuhito Igarashi, Keisuke Isogai, Wataru Nitta,
Hartmut Sartorius, Clemens Schlosser, Wolfgang Weiss


MARCH 2008
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Preface

Abstract

Contents

List of Tables and Figures
1
Introduction
2
Instruments of cold charcoal trap - gas chromatography - gas counting system of 85Kr
3
Standard gas for 85Kr measurement
4
Atmospheric 85Kr in Japan

Acknowledgements

References
Appendix 1
Chromatograms of the system
Appendix 2
Program of the system
Appendix 3
Hardware specifications of the system
Appendix 4
85Kr measurement system for continuous monitoring at the Meteorological Research Institute, Japan