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Journal Articles

Introduction of imaging detection into a time-of-flight mass spectrometer to improve the dynamic range in the isotope ratio measurement

Katayama, Atsushi; Furukawa, Katsutoshi; Watanabe, Kazuo

Bunseki Kagaku, 52(6), p.461 - 467, 2003/06

 Times Cited Count:0 Percentile:100(Chemistry, Analytical)

An imaging ion detection system was introduced to a time-of-flight mass spectrometer (TOFMS) in order to increase dynamic range in the isotope ratio measurements. The new detection system utilizes a position sensitive micro channel plate (MCP) with a phosphor plate and a CCD camera which records light spots on the MCP. Mass discriminated ion beams produced by laser resonance ionization were swept on the surface of MCP by a time-depended electric field located in front of the MCP. The resulting light spots were recorded as images by CCD camera. A mass spectrum was obtained from the images. The present method was applied to the isotope analysis of calcium. A dynamic range of more than 5 orders of magnitude was achieved.

JAEA Reports

NuTEC annual report; April l, 2001 - March 31, 2002

Nuclear Technology and Education Center

JAERI-Review 2003-003, 81 Pages, 2003/05

JAERI-Review-2003-003.pdf:3.48MB

This report summarizes the educational activities and related management of the Nuclear Technology andEducation Center (NuTEC) during the 2001 fiscal year. Both Tokyo and Tokai Education Centers have successfully conducted almost all the planned domestic and international training courses. In addition Tokai Education Center has performed the 3nd nuclear supervisor training course and introduced a new course for special nuclear emergency preparedness in response to the legal amendment after the criticality accident. The sum total number of participants was 1,310. The International Technology Transfer Division has not only planned and organized the international training courses, but also taken charge of the 3nd workshop on Human Resource Development in Nuclear Field in Asian and Pasific Region. Various researches have been made to improve the educational program.

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