1. Conceptual design of the ITER fast-ion loss detector.
- Author
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Garcia-Munoz, M., Kocan, M., Ayllon-Guerola, J., Bertalot, L., Bonnet, Y., Casal, N., Galdon, J., Lopez, J. Garcia, Giacomin, T., Gonzalez-Martin, J., Gunn, J. P., Jimenez-Ramos, M. C., Kiptily, V., Pinches, S. D., Rodriguez-Ramos, M., Reichle, R., Rivero-Rodriguez, J. F., Sanchis-Sanchez, L., Snicker, A., and Vayakis, G.
- Subjects
DETECTORS ,MAGNETIC fields ,SCINTILLATORS ,SIGNAL-to-noise ratio ,PARTICLES - Abstract
A conceptual design of a reciprocating fast-ion loss detector for ITER has been developed and is presented here. Fast-ion orbit simulations in a 3D magnetic equilibrium and up-to-date first wall have been carried out to revise the measurement requirements for the lost alpha monitor in ITER. In agreement with recent observations, the simulations presented here suggest that a pitch-angle resolution of ~5° might be necessary to identify the loss mechanisms. Synthetic measurements including realistic lost alpha-particle as well as neutron and gamma fluxes predict scintillator signal-to-noise levels measurable with standard light acquisition systems with the detector aperture at ~11 cm outside of the diagnostic first wall. At measurement position, heat load on detector head is comparable to that in present devices. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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