Improvements in time resolution and signal-to-noise ratio in a compact pico-second pulse radiolysis system

Hiroyuki Nagai, Masaaki Kawaguchi, Kazuyuki Sakaue, Keita Komiya, Tomoaki Nomoto, Yoshio Kamiya, Yoshimasa Hama, Masakazu Washio, Kiminori Ushida, Shigeru Kashiwagi, Ryunosuke Kuroda

Research output: Contribution to journalArticle

6 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)82-86
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume265
Issue number1
DOIs
Publication statusPublished - 2007 Dec

Fingerprint

Radiolysis
picosecond pulses
Radiation chemistry
radiolysis
radiation chemistry
Signal to noise ratio
signal to noise ratios
light beams
Cathodes
cathodes
YLF lasers
Ultraviolet lasers
Solid state lasers
Laser modes
solid state lasers
pulses
ultraviolet lasers
injectors
Electron beams
Laser pulses

Keywords

  • Hydrated electron
  • Nd:YLF laser
  • Photo-cathode RF-gun
  • Pico-second time resolution
  • Pulse radiolysis
  • Pump-probe

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Improvements in time resolution and signal-to-noise ratio in a compact pico-second pulse radiolysis system. / Nagai, Hiroyuki; Kawaguchi, Masaaki; Sakaue, Kazuyuki; Komiya, Keita; Nomoto, Tomoaki; Kamiya, Yoshio; Hama, Yoshimasa; Washio, Masakazu; Ushida, Kiminori; Kashiwagi, Shigeru; Kuroda, Ryunosuke.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 265, No. 1, 12.2007, p. 82-86.

Research output: Contribution to journalArticle

Nagai, Hiroyuki ; Kawaguchi, Masaaki ; Sakaue, Kazuyuki ; Komiya, Keita ; Nomoto, Tomoaki ; Kamiya, Yoshio ; Hama, Yoshimasa ; Washio, Masakazu ; Ushida, Kiminori ; Kashiwagi, Shigeru ; Kuroda, Ryunosuke. / Improvements in time resolution and signal-to-noise ratio in a compact pico-second pulse radiolysis system. In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2007 ; Vol. 265, No. 1. pp. 82-86.
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AU - Hama, Yoshimasa

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AB - 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.

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