PHOTONEUTRON PRODUCTION ACCOMPANYING PLASMA DISRUPTIONS IN JET
The strength of the photoneutron emission accompanying major plasma disruptions in JET has been studied for a period from start-up to December 1986. The observed photoneutron yields cover the range from 10"10" to 10"15" neutrons, with instantaneous intensities reaching 5.10"17" neutrons/sec. It is shown that the energies attained by runaway electrons can be very high, perhaps exceeding 100 MeV, that the runaway currents of high energy electrons are significant, sometimes exceeding 1 MA, and that on average the fraction of the available magnetic energy converted to high energy runaway electron production is f = 1.8times10"-2" I-"p""0.6", with plasma current I-"p" in MA.
Bibliographic Reference: REPORT JET-P(87)50, 1987, AVAILABILITY: JET, ABINGDON, UK
Record Number: 1989126088400 / Last updated on: 1989-05-01
Available languages: en