Limitations to Total Radiated Power Determination in Divertor Tokamaks
The electromagnetic total power radiated from the plasma in a tokamak is often estimated by a weight summation of some bolmeter channels. Although this method may be reliable for limiter plasmas, theoretical considerations and a comparison with total radiated powers determined from tomographic reconstruction's show that for diverted plasmas with such radiation from the divertor region such estimates can be unreliable, unless the used lines of sight are parallel. The sparseness of the sampling, however, has little effect on the total radiated power calculation if the beam widths are similar to the distance between lines of sight.
Bibliographic Reference: Report: JET-P(99)44, 12pp.
Availability: Available from the Librarian, JET Joint Undertaking, Abingdon (GB)
Record Number: 200011785 / Last updated on: 2000-02-12
Original language: en
Available languages: en