Role of JETPEAK database in validation of synthetic neutron camera diagnostics and ASCOT- AFSI fast particle and fusion product calculation chain in JET

, P. Siren*, J. Varje

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

JETPEAK is a comprehensive stationary-state database and a work environment for JET diagnostics data, processed data and simulations suitable for a wide variety of analytical tasks. It enables systematic modelling and efficient interpretation of synthetic neutron diagnostics and validation of fast particle and fusion product calculations. We present a processing chain connecting the ASCOT orbit following code and AFSI fusion source simulator Monte-Carlo codes, providing synthetic diagnostics data for systematic comparison with measured data and model validation. The ASCOT code defines the reactant distribution functions and the additional AFSI module creates fusion products as 4D (R, z, E, pitch) distributions, which serve as input for synthetic diagnostics calculations. In this contribution we present synthetic neutron emission rates for the JET neutron camera lines of sight. First results show a fair agreement of the synthetic camera results with the horizontal JET neutron cameras and systematic differences, which are not understood, between the ratios of neutron emission measurements and modelled for the vertical and horizontal cameras.

Original languageEnglish
Article number11013
Number of pages9
JournalJournal of Instrumentation
Volume14
DOIs
Publication statusPublished - Nov 2019
MoE publication typeA1 Journal article-refereed
EventEuropean Conference on Plasma Diagnostics - Lisbon, Portugal
Duration: 6 May 201910 May 2019
Conference number: 3

Keywords

  • Analysis and statistical methods
  • Nuclear instruments and methods for hot plasma diagnostics
  • Simulation methods and programs

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