Conceptual design of the ITER fast-ion loss detector

M. Garcia-Munoz; M. Kocan; J. Ayllon-Guerola; L. Bertalot; Y. Bonnet; N. Casal; J. Galdon; J. Garcia Lopez; T. Giacomin; J. Gonzalez-Martin; J. P. Gunn; M. C. Jimenez-Ramos; V. Kiptily; S. D. Pinches; M. Rodriguez-Ramos; R. Reichle; J. F. Rivero-Rodriguez; L. Sanchis-Sanchez; A. Snicker; G. Vayakis; E. Veshchev; Ch Vorpahl; M. Walsh; R. Walton

doi:10.1063/1.4961295

Conceptual design of the ITER fast-ion loss detector

M. Garcia-Munoz^*, M. Kocan, J. Ayllon-Guerola, L. Bertalot, Y. Bonnet, N. Casal, J. Galdon, J. Garcia Lopez, T. Giacomin, J. Gonzalez-Martin, J. P. Gunn, M. C. Jimenez-Ramos, V. Kiptily, S. D. Pinches, M. Rodriguez-Ramos, R. Reichle, J. F. Rivero-Rodriguez, L. Sanchis-Sanchez, A. Snicker, G. VayakisE. Veshchev, Ch Vorpahl, M. Walsh, R. Walton

^*Corresponding author for this work

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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.

Original language	English
Article number	11D829
Journal	Review of Scientific Instruments
Volume	87
Issue number	11
DOIs	https://doi.org/10.1063/1.4961295
Publication status	Published - 1 Nov 2016
MoE publication type	A1 Journal article-refereed

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10.1063/1.4961295

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Garcia-Munoz, M., Kocan, M., Ayllon-Guerola, J., Bertalot, L., Bonnet, Y., Casal, N., Galdon, J., Garcia Lopez, J., 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., ... Walton, R. (2016). Conceptual design of the ITER fast-ion loss detector. Review of Scientific Instruments, 87(11), Article 11D829. https://doi.org/10.1063/1.4961295

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title = "Conceptual design of the ITER fast-ion loss detector",

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.",

author = "M. Garcia-Munoz and M. Kocan and J. Ayllon-Guerola and L. Bertalot and Y. Bonnet and N. Casal and J. Galdon and \{Garcia Lopez\}, J. and T. Giacomin and J. Gonzalez-Martin and Gunn, \{J. P.\} and Jimenez-Ramos, \{M. C.\} and V. Kiptily and Pinches, \{S. D.\} and M. Rodriguez-Ramos and R. Reichle and Rivero-Rodriguez, \{J. F.\} and L. Sanchis-Sanchez and A. Snicker and G. Vayakis and E. Veshchev and Ch Vorpahl and M. Walsh and R. Walton",

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month = nov,

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doi = "10.1063/1.4961295",

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Garcia-Munoz, M, Kocan, M, Ayllon-Guerola, J, Bertalot, L, Bonnet, Y, Casal, N, Galdon, J, Garcia Lopez, J, Giacomin, T, Gonzalez-Martin, J, Gunn, JP, Jimenez-Ramos, MC, Kiptily, V, Pinches, SD, Rodriguez-Ramos, M, Reichle, R, Rivero-Rodriguez, JF, Sanchis-Sanchez, L, Snicker, A, Vayakis, G, Veshchev, E, Vorpahl, C, Walsh, M & Walton, R 2016, 'Conceptual design of the ITER fast-ion loss detector', Review of Scientific Instruments, vol. 87, no. 11, 11D829. https://doi.org/10.1063/1.4961295

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T1 - Conceptual design of the ITER fast-ion loss detector

AU - Garcia-Munoz, M.

AU - Kocan, M.

AU - Ayllon-Guerola, J.

AU - Bertalot, L.

AU - Bonnet, Y.

AU - Casal, N.

AU - Galdon, J.

AU - Garcia Lopez, J.

AU - Giacomin, T.

AU - Gonzalez-Martin, J.

AU - Gunn, J. P.

AU - Jimenez-Ramos, M. C.

AU - Kiptily, V.

AU - Pinches, S. D.

AU - Rodriguez-Ramos, M.

AU - Reichle, R.

AU - Rivero-Rodriguez, J. F.

AU - Sanchis-Sanchez, L.

AU - Snicker, A.

AU - Vayakis, G.

AU - Veshchev, E.

AU - Vorpahl, Ch

AU - Walsh, M.

AU - Walton, R.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - 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.

AB - 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.

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VL - 87

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 11

M1 - 11D829

ER -

Conceptual design of the ITER fast-ion loss detector

Abstract

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