| Popis: |
One of the objectives of the JET experiment is to study α-particle confinement and α-heating of a D-T plasma. If significant D-T burning is achieved in the experiment, a large number of 14.1 MeV neutrons will be produced, which will activate the components of the apparatus. In this paper, the resulting dose rates as a function of the decay time after shut-down of the machine are computed. It is assumed that the machine is operated in a pulsed mode at an average of loo plasma discharges per week and that 10 20 neutrons per pulse are produced. The total dose rate at a specific point on the median plane of the apparatus between two return limbs of the iron core amounts to about 3 rem/h at one day and to about 0.11 rem/h at 30 days after shut-down. |
