Results from a synthetic model of the ITER XRCS-Core diagnostic based on high-fidelity x-ray ray tracing-Reference-Cited by-同舟云学术

Results from a synthetic model of the ITER XRCS-Core diagnostic based on high-fidelity x-ray ray tracing

Published:2024-08-01 Issue:8 Volume:95 Page:
ISSN:0034-6748
Container-title:Review of Scientific Instruments
language:en
Short-container-title:

Author:

Pablant N. A.¹^ORCID,Cheng Z.²^ORCID,O’Mullane M.³^ORCID,Gao L.¹^ORCID,Barnsley R.²,Bartlett M. N.⁴^ORCID,Bitter M.¹^ORCID,Bourcart E.⁵^ORCID,Brown G. V.⁶^ORCID,De Bock M.²,Delgado-Aparicio L. F.¹^ORCID,Dunn C.⁷^ORCID,Fairchild A. J.⁶^ORCID,Hell N.⁶^ORCID,Hill K. W.¹^ORCID,Klabacha J.¹^ORCID,Kraus F.¹^ORCID,Lu D.⁸^ORCID,Magesh P. B.⁹,Mishra S.⁹,Sánchez del Río M.¹⁰^ORCID,Tieulent R.²^ORCID,Yakusevich Y.¹¹^ORCID

Affiliation:

1. Princeton Plasma Physics Laboratory 1 , 100 Stellarator Road, Princeton, New Jersey 08543, USA

2. ITER Organization, Route de Vinon-sur-Verdon 2 , CS 90 046, 13067 St. Paul Lez Durance Cedex, France

3. University of Strathclyde 3 , 107 Rottenrow, Glasgow G4 0NG, United Kingdom

4. University of Illinois at Urbana-Champaign 4 , 104 S. Wright Street, Urbana, Illinois 61801, USA

5. Carnegie Mellon University 5 , 5000 Forbes Ave., Pittsburgh, Pennsylvania 15213, USA

6. Lawrence Livermore National Laboratory 6 , 7000 East Ave., Livermore, California 94550, USA

7. Plasma Science Fusion Center, MIT 7 , Cambridge, Massachusetts 02139, USA

8. Institute of Plasma Physics 8 , No. 350 Shushanhu Road, Hefei, Anhui, China

9. ITER-India, Institute for Plasma Research 9 , Koteshwar, Gandhinagar 382424, Gujarat, India

10. European Synchrotron Radiation Facility 10 , B.P. 220, 38043 Grenoble Cedex, France

11. University of California San Diego 11 , 9500 Gilman Dr., La Jolla, California 92093, USA

Abstract

A high-fidelity synthetic diagnostic has been developed for the ITER core x-ray crystal spectrometer diagnostic based on x-ray ray tracing. This synthetic diagnostic has been used to model expected performance of the diagnostic, to aid in diagnostic design, and to develop engineering tolerances. The synthetic model is based on x-ray ray tracing using the recently developed xicsrt ray tracing code and includes a fully three-dimensional representation of the diagnostic based on the computer aided design. The modeled components are: plasma geometry and emission profiles, highly oriented pyrolytic graphite pre-reflectors, spherically bent crystals, and pixelated x-ray detectors. Plasma emission profiles have been calculated for Xe44+, Xe47+, and Xe51+, based on an ITER operational scenario available through the Integrated Modelling & Analysis Suite database, and modeled within the ray tracing code as a volumetric x-ray source; the shape of the plasma source is determined by equilibrium geometry and an appropriate wavelength distribution to match the expected ion temperature profile. All individual components of the x-ray optical system have been modeled with high-fidelity producing a synthetic detector image that is expected to closely match what will be seen in the final as-built system. Particular care is taken to maintain preservation of photon statistics throughout the ray tracing allowing for quantitative estimates of diagnostic performance.

Funder

U.S. Department of Energy

Publisher

AIP Publishing

Link

https://pubs.aip.org/aip/rsi/article-pdf/doi/10.1063/5.0219328/20096393/083517_1_5.0219328.pdf

Reference22 articles.

1. Novel dual-reflection design applied for ITER core x-ray spectrometer

2. Transition energy measurements of highly-charged Xe and W in support of ITER’s XRCS and SPARC’s XRS,2024

3. Objectives and layout of a high-resolution x-ray imaging crystal spectrometer for the large helical device

4. Design and expected performance of a variable-radii sinusoidal spiral x-ray spectrometer for the National Ignition Facility

5. XICSRT sourcecode, https://github.com/PrincetonUniversity/xicsrt, 2021.