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Title: Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt laser system

Abstract

A laser based electron generator is shown, for the first time, to produce sufficient charge to conduct time resolved investigations of radiation induced chemical events. Electron pulses generated by focussing terawatt laser pulses into a supersonic helium gas jet are used to ionize liquid water. The decay of the hydrated electrons produced by the ionizing electron pulses is monitored with 0.3 {mu}s time resolution. Hydrated electron concentrations as high as 22 {mu}M were generated. The results show that terawatt lasers offer both an alternative to linear accelerators and a means to achieve subpicosecond time resolution for pulse radiolysis studies. (c) 2000 American Institute of Physics.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [2]
  1. Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109-2099 (United States)
  2. Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Publication Date:
OSTI Identifier:
20216622
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 71; Journal Issue: 6; Other Information: PBD: Jun 2000; Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRON BEAMS; ELECTRON SOURCES; HELIUM; JETS; WATER; IONIZATION; RADIOLYSIS; FOCUSING; SUPERSONIC FLOW; PULSE GENERATORS; ANSTO; EXPERIMENTAL DATA

Citation Formats

Saleh, Ned, Flippo, Kirk, Nemoto, Koshichi, Umstadter, Donald, Crowell, Robert A., Jonah, Charles D., and Trifunac, Alexander D. Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt laser system. United States: N. p., 2000. Web. doi:10.1063/1.1150659.
Saleh, Ned, Flippo, Kirk, Nemoto, Koshichi, Umstadter, Donald, Crowell, Robert A., Jonah, Charles D., & Trifunac, Alexander D. Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt laser system. United States. doi:10.1063/1.1150659.
Saleh, Ned, Flippo, Kirk, Nemoto, Koshichi, Umstadter, Donald, Crowell, Robert A., Jonah, Charles D., and Trifunac, Alexander D. Thu . "Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt laser system". United States. doi:10.1063/1.1150659.
@article{osti_20216622,
title = {Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt laser system},
author = {Saleh, Ned and Flippo, Kirk and Nemoto, Koshichi and Umstadter, Donald and Crowell, Robert A. and Jonah, Charles D. and Trifunac, Alexander D.},
abstractNote = {A laser based electron generator is shown, for the first time, to produce sufficient charge to conduct time resolved investigations of radiation induced chemical events. Electron pulses generated by focussing terawatt laser pulses into a supersonic helium gas jet are used to ionize liquid water. The decay of the hydrated electrons produced by the ionizing electron pulses is monitored with 0.3 {mu}s time resolution. Hydrated electron concentrations as high as 22 {mu}M were generated. The results show that terawatt lasers offer both an alternative to linear accelerators and a means to achieve subpicosecond time resolution for pulse radiolysis studies. (c) 2000 American Institute of Physics.},
doi = {10.1063/1.1150659},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 6,
volume = 71,
place = {United States},
year = {2000},
month = {6}
}