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.
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Garcia-Munoz
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: M
authors.initials: M
authors.lastname: Kocan
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Ayllon-Guerola
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: L
authors.initials: L
authors.lastname: Bertalot
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Bonnet
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: N
authors.initials: N
authors.lastname: Casal
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Galdon
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Garcia Lopez
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: T
authors.initials: T
authors.lastname: Giacomin
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Gonzalez-Martin
authors.affiliation: CEA, IRFM, F-13108 Saint Paul Lez Durance, France.
authors.forename: J P
authors.initials: JP
authors.lastname: Gunn
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: M C
authors.initials: MC
authors.lastname: Jimenez-Ramos
authors.affiliation: CCFE, Abingdon OX14 3DB, United Kingdom.
authors.forename: V
authors.initials: V
authors.lastname: Kiptily
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: S D
authors.initials: SD
authors.lastname: Pinches
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Rodriguez-Ramos
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: R
authors.initials: R
authors.lastname: Reichle
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: J F
authors.initials: JF
authors.lastname: Rivero-Rodriguez
authors.affiliation: Department of Atomic, Molecular and Nuclear Physics, University of Seville, 41012 Seville, Spain.
authors.forename: L
authors.initials: L
authors.lastname: Sanchis-Sanchez
authors.affiliation: Max-Planck-Institut für Plasmaphysik, Garching, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Snicker
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: G
authors.initials: G
authors.lastname: Vayakis
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: E
authors.initials: E
authors.lastname: Veshchev
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: Ch
authors.initials: C
authors.lastname: Vorpahl
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: M
authors.initials: M
authors.lastname: Walsh
authors.affiliation: ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 Saint Paul-lez-Durance Cedex, France.
authors.forename: R
authors.initials: R
authors.lastname: Walton