Time-of-flight Thomson backscattering technique for large fusion devices
- 1 May 1985
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 56 (5) , 1030-1032
- https://doi.org/10.1063/1.1138258
Abstract
The application of 180° Thomson scattering to the JET tokamak for measuring electron temperature and density profiles is discussed. Spatial resolution along the laser beam is achieved by the use of subnanosecond laser pulses and high‐speed detection allowing time‐of‐flight measurements. Gating tests of MCP photomultiplier and measurements of the stray light level in a full‐scale optical setup show that the severe stray light problem in a backscatter geometry can be handled. Tests of a frequency‐doubled iodine laser system are reported which demonstrate that a 1‐pps operation of the system is feasible.Keywords
This publication has 2 references indexed in Scilit:
- Proposal for a time-of-flight Thomson backscattering technique for large fusion devicesReview of Scientific Instruments, 1984
- A closed cycle iodine laserOptics Communications, 1976