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Improvements in time resolution and signal-to-noise ratio in a compact pico-second pulse radiolysis system |
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| Authors: | Hiroyuki Nagai Masaaki Kawaguchi Keita Komiya Yoshio Kamiya Masakazu Washio Shigeru Kashiwagi |
| Affiliation: | a Advanced Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku-ku, Tokyo 162-0044, Japan b The Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan c The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan d National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 2, Tsukuba, Ibaraki 305-8568, Japan |
| Abstract: | A compact pico-second pulse radiolysis system has been developing at Waseda University for studying primary processes in radiation chemistry. The system is composed of a photo-injector system and a pico-second all-solid-state laser system. An infrared (IR) and an ultraviolet (UV) laser pulses are obtained from mode-locked Nd:YLF laser system and used for generation of the white light continuum as a probe light and the irradiation to the Cu cathode of a photo-cathode RF-gun, respectively. To improve signal-to-noise (S/N) ratio and time resolution of this pulse radiolysis system, we optimized both probe light and pump electron beam. As a result, our pico-second pulse radiolysis system has been enough to study the primary processes of radiation chemistry. The experimental results and the improvements of our system are described in this paper. |
| Keywords: | 82 80 &minus Dx 23 90 +w 07 60 &minus j |
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