Shiva optical diagnostics
In the laser fusion program at Lawrence Livermore Laboratory, no target experiment is complete unless it is complemented by careful measurements of the laser pulse that irradiates the target. For this purpose, an incident beam diagnostics (IBD) package has been designed for the Shiva laser. The package will furnish data on items such as the total energy and the focusable energy out of the laser chain, and the spatial and temporal energy and power distribution at the target plane. Understanding laser-plasma interactions requires knowledge of the amount of 1.06 ..mu..m light energy that is scattered in various directions from the target. The light energy that is scattered toward the beam focusing lens is analyzed by a reflected beam diagnostic (RBD) package containing a calorimeter, a multiple image camera and a TV camera. This paper describes the detailed design and operation of the IBD and RBD packages as tools to align spatial filters and targets, as well as to diagnose the laser beams and target reflectivity.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5237839
- Report Number(s):
- UCRL-79776; CONF-771136-14; TRN: 78-005718
- Resource Relation:
- Conference: Annual American Physical Society meeting, Atlanta, GA, USA, 7 Nov 1977
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
SHIVA FACILITY
MEASURING METHODS
CALORIMETERS
LASER IMPLOSIONS
LASER RADIATION
THERMONUCLEAR FUELS
ELECTROMAGNETIC RADIATION
FUELS
IMPLOSIONS
MEASURING INSTRUMENTS
RADIATIONS
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