A new FILDSIM model for improved velocity-space sensitivity modelling and reconstructions

Bo S. Schmidt; Jesús Poley-Sanjuán; José Rueda-Rueda; Joaquín Galdon-Quíroga; Marcelo Baquero-Ruiz; Henrik Järleblad; Bernard C.G. Reman; Mads Rud; Andrea Valentini; Manuel García-Muñoz; Mirko Salewski

doi:10.1088/1361-6587/ad268f

A new FILDSIM model for improved velocity-space sensitivity modelling and reconstructions

Bo S. Schmidt^*, Jesús Poley-Sanjuán, José Rueda-Rueda, Joaquín Galdon-Quíroga, Marcelo Baquero-Ruiz, Henrik Järleblad, Bernard C.G. Reman, Mads Rud, Andrea Valentini, Manuel García-Muñoz, Mirko Salewski

^*Corresponding author for this work

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Abstract

We present a new version of the FILDSIM code (Galdon-Quíroga et al 2018 Plasma Phys. Control. Fusion 60 105005), which significantly refines the modelling of the fast-ion loss detector (FILD) signal. We demonstrate that the FILD weight functions computed using this new version of FILDSIM are more accurate relative to synthetic benchmarks than those computed using the previous version. Thus, the new version enables higher-quality velocity-space sensitivity modelling and reconstructions. We validate the improvements on experimental data from discharge #75620 at TCV. Additionally, we present a novel approach for characterizing FILDs through a gross FILD measurement and a gross weight function based on the calculations from the new version of FILDSIM. We use them to characterize the TCV FILD.

Original language	English
Article number	045004
Journal	Plasma Physics and Controlled Fusion
Volume	66
Issue number	4
Number of pages	13
ISSN	0741-3335
DOIs	https://doi.org/10.1088/1361-6587/ad268f
Publication status	Published - 2024

Keywords

Fast ion
Fast-ion loss detector
FILDSIM
Inverse problem
Reconstruction
Velocity space

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Schmidt, B. S., Poley-Sanjuán, J., Rueda-Rueda, J., Galdon-Quíroga, J., Baquero-Ruiz, M., Järleblad, H., Reman, B. C. G., Rud, M., Valentini, A., García-Muñoz, M., & Salewski, M. (2024). A new FILDSIM model for improved velocity-space sensitivity modelling and reconstructions. Plasma Physics and Controlled Fusion, 66(4), Article 045004. https://doi.org/10.1088/1361-6587/ad268f

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title = "A new FILDSIM model for improved velocity-space sensitivity modelling and reconstructions",

abstract = "We present a new version of the FILDSIM code (Galdon-Qu{\'i}roga et al 2018 Plasma Phys. Control. Fusion 60 105005), which significantly refines the modelling of the fast-ion loss detector (FILD) signal. We demonstrate that the FILD weight functions computed using this new version of FILDSIM are more accurate relative to synthetic benchmarks than those computed using the previous version. Thus, the new version enables higher-quality velocity-space sensitivity modelling and reconstructions. We validate the improvements on experimental data from discharge #75620 at TCV. Additionally, we present a novel approach for characterizing FILDs through a gross FILD measurement and a gross weight function based on the calculations from the new version of FILDSIM. We use them to characterize the TCV FILD.",

keywords = "Fast ion, Fast-ion loss detector, FILDSIM, Inverse problem, Reconstruction, Velocity space",

author = "Schmidt, {Bo S.} and Jes{\'u}s Poley-Sanju{\'a}n and Jos{\'e} Rueda-Rueda and Joaqu{\'i}n Galdon-Qu{\'i}roga and Marcelo Baquero-Ruiz and Henrik J{\"a}rleblad and Reman, {Bernard C.G.} and Mads Rud and Andrea Valentini and Manuel Garc{\'i}a-Mu{\~n}oz and Mirko Salewski",

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doi = "10.1088/1361-6587/ad268f",

language = "English",

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journal = "Plasma Physics and Controlled Fusion",

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AU - Schmidt, Bo S.

AU - Poley-Sanjuán, Jesús

AU - Rueda-Rueda, José

AU - Galdon-Quíroga, Joaquín

AU - Baquero-Ruiz, Marcelo

AU - Järleblad, Henrik

AU - Reman, Bernard C.G.

AU - Rud, Mads

AU - Valentini, Andrea

AU - García-Muñoz, Manuel

AU - Salewski, Mirko

PY - 2024

Y1 - 2024

N2 - We present a new version of the FILDSIM code (Galdon-Quíroga et al 2018 Plasma Phys. Control. Fusion 60 105005), which significantly refines the modelling of the fast-ion loss detector (FILD) signal. We demonstrate that the FILD weight functions computed using this new version of FILDSIM are more accurate relative to synthetic benchmarks than those computed using the previous version. Thus, the new version enables higher-quality velocity-space sensitivity modelling and reconstructions. We validate the improvements on experimental data from discharge #75620 at TCV. Additionally, we present a novel approach for characterizing FILDs through a gross FILD measurement and a gross weight function based on the calculations from the new version of FILDSIM. We use them to characterize the TCV FILD.

AB - We present a new version of the FILDSIM code (Galdon-Quíroga et al 2018 Plasma Phys. Control. Fusion 60 105005), which significantly refines the modelling of the fast-ion loss detector (FILD) signal. We demonstrate that the FILD weight functions computed using this new version of FILDSIM are more accurate relative to synthetic benchmarks than those computed using the previous version. Thus, the new version enables higher-quality velocity-space sensitivity modelling and reconstructions. We validate the improvements on experimental data from discharge #75620 at TCV. Additionally, we present a novel approach for characterizing FILDs through a gross FILD measurement and a gross weight function based on the calculations from the new version of FILDSIM. We use them to characterize the TCV FILD.

KW - Fast ion

KW - Fast-ion loss detector

KW - FILDSIM

KW - Inverse problem

KW - Reconstruction

KW - Velocity space

U2 - 10.1088/1361-6587/ad268f

DO - 10.1088/1361-6587/ad268f

M3 - Journal article

AN - SCOPUS:85185200134

SN - 0741-3335

VL - 66

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 4

M1 - 045004

ER -

A new FILDSIM model for improved velocity-space sensitivity modelling and reconstructions

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Keywords

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