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Title: Demonstration of a high repetition rate capillary discharge waveguide

A hydrogen-filled capillary discharge waveguide operating at kHz repetition rates is presented for parameters relevant to laser plasma acceleration (LPA). The discharge current pulse was optimized for erosion mitigation with laser guiding experiments and MHD simulation. Heat flow simulations and measurements showed modest temperature rise at the capillary wall due to the average heat load at kHz repetition rates with water-cooled capillaries, which is promising for applications of LPAs such as high average power radiation sources.
Authors:
; ; ; ; ; ;  [1] ; ; ;  [2] ; ;  [3]
  1. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  2. Euclid TechLabs, Gaithersburg, Maryland 20879 (United States)
  3. Keldysh Institute of Applied Mathematics, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
22494923
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 119; Journal Issue: 3; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; HEAT FLUX; HEATING LOAD; HYDROGEN; KHZ RANGE; LASERS; MAGNETOHYDRODYNAMICS; PLASMA ACCELERATION; RADIATION SOURCES; SIMULATION; WAVEGUIDES