Synthetic diagnostic for the JET scintillator probe lost alpha measurements

JET Contributors, Jan Mlynar, T. Ahlgren, L. Aho-Mantila, M. Airila, C. Björkas, A. Lahtinen, K. Nordlund, E. Safi, S. K. Sipila , O. Asunta, M. Groth, A. Hakola, J. Karhunen, S. Koivuranta, T. Kurki-Suonio, B. Lomanowski, J. Lonnroth, A. Salmi, M. I. K. SantalaJ. Varje, P. Siren

Research output: Contribution to journalConference articleScientificpeer-review

Abstract

A synthetic diagnostic has been developed for the JET lost alpha scintillator probe, based on the ASCOT fast ion orbit following code and the AFSI fusion source code. The synthetic diagnostic models the velocity space distribution of lost fusion products in the scintillator probe. Validation with experimental measurements is presented, where the synthetic diagnostic is shown to predict the gyroradius and pitch angle of lost DD protons and tritons. Additionally, the synthetic diagnostic reproduces relative differences in total loss rates in multiple phases of the discharge, which can be used as a basis for total loss rate predictions.

Original languageEnglish
Article numberC09018
JournalJournal of Instrumentation
Volume14
Number of pages7
ISSN1748-0221
DOIs
Publication statusPublished - 12 Sep 2019
MoE publication typeA4 Article in conference proceedings
EventEuropean Conference on Plasma Diagnostics (ECPD): ECPD2019 - Lisbon, Portugal
Duration: 6 May 201910 May 2019
Conference number: 3

Fields of Science

  • 114 Physical sciences

Cite this

JET Contributors, Mlynar, J., Ahlgren, T., Aho-Mantila, L., Airila, M., Björkas, C., ... Siren, P. (2019). Synthetic diagnostic for the JET scintillator probe lost alpha measurements. Journal of Instrumentation, 14, [C09018]. https://doi.org/10.1088/1748-0221/14/09/C09018