Development Of A Compact Hard X-Ray Camera On The Tst-2 Spherical Tokamak

Akira Ejiri; Yuki Aoi; Hibiki Yamazaki; Yuichi Takase; Osamu Watanabe; Yongtae Ko; James H.P. Rice; Yi Peng; Kotaro Iwasaki; Kyohei Matsuzaki; Yuki Osawa; Yasuo Yoshimura

doi:10.1585/pfr.15.1202023

Development Of A Compact Hard X-Ray Camera On The Tst-2 Spherical Tokamak

Akira Ejiri^*, Yuki Aoi, Hibiki Yamazaki, Yuichi Takase, Osamu Watanabe, Yongtae Ko, James H.P. Rice, Yi Peng, Kotaro Iwasaki, Kyohei Matsuzaki, Yuki Osawa, Yasuo Yoshimura

^*Corresponding author for this work

Biochemistry and Molecular Genetics

Research output: Contribution to journal › Article › peer-review

Abstract

A compact hard X-ray camera has been developed to study the behavior of fast electrons accelerated by lower hybrid waves in the TST-2 spherical tokamak. The camera consists of a pinhole made of tungsten alloy, a thin resin window, a thin LYSO scintillator disk, 5 fiber optic light guides and 5 photomultiplier tubes and shields. The camera is installed on a tangential port, and two-dimensional images are obtained by rotating the system around the axis of the port on a shot by shot basis. The typical energy range is 10 - 250 keV, and the energy resolution is about 100% (FWHM) at 100 keV. The measured images of a lower hybrid wave driven plasma show bright region at the inboard side (i.e.,

Original language	English (US)
Pages (from-to)	1-2
Number of pages	2
Journal	Plasma and Fusion Research
Volume	15
DOIs	https://doi.org/10.1585/pfr.15.1202023
State	Published - 2020

Funding

This work is partly supported by National Institute for Fusion Science Collaboration Research Program NIFS18KOAR022 and NIFS12KUTR078 This work is partly supported by National Institute for Fusion Science Collaboration Research Program NIFS18KOAR022 and NIFS12KUTR078.

Keywords

hard X-ray measurement
lower hybrid wave
LYSO scintillator
pinhole camera
spherical tokamak

ASJC Scopus subject areas

Condensed Matter Physics

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10.1585/pfr.15.1202023

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title = "Development Of A Compact Hard X-Ray Camera On The Tst-2 Spherical Tokamak",

abstract = "A compact hard X-ray camera has been developed to study the behavior of fast electrons accelerated by lower hybrid waves in the TST-2 spherical tokamak. The camera consists of a pinhole made of tungsten alloy, a thin resin window, a thin LYSO scintillator disk, 5 fiber optic light guides and 5 photomultiplier tubes and shields. The camera is installed on a tangential port, and two-dimensional images are obtained by rotating the system around the axis of the port on a shot by shot basis. The typical energy range is 10 - 250 keV, and the energy resolution is about 100% (FWHM) at 100 keV. The measured images of a lower hybrid wave driven plasma show bright region at the inboard side (i.e.,",

keywords = "hard X-ray measurement, lower hybrid wave, LYSO scintillator, pinhole camera, spherical tokamak",

author = "Akira Ejiri and Yuki Aoi and Hibiki Yamazaki and Yuichi Takase and Osamu Watanabe and Yongtae Ko and Rice, {James H.P.} and Yi Peng and Kotaro Iwasaki and Kyohei Matsuzaki and Yuki Osawa and Yasuo Yoshimura",

note = "Publisher Copyright: {\textcopyright} 2020 The Japan Society of Plasma Science and Nuclear Fusion Research",

year = "2020",

doi = "10.1585/pfr.15.1202023",

language = "English (US)",

volume = "15",

pages = "1--2",

journal = "Plasma and Fusion Research",

issn = "1880-6821",

publisher = "The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",

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T1 - Development Of A Compact Hard X-Ray Camera On The Tst-2 Spherical Tokamak

AU - Ejiri, Akira

AU - Aoi, Yuki

AU - Yamazaki, Hibiki

AU - Takase, Yuichi

AU - Watanabe, Osamu

AU - Ko, Yongtae

AU - Rice, James H.P.

AU - Peng, Yi

AU - Iwasaki, Kotaro

AU - Matsuzaki, Kyohei

AU - Osawa, Yuki

AU - Yoshimura, Yasuo

PY - 2020

Y1 - 2020

N2 - A compact hard X-ray camera has been developed to study the behavior of fast electrons accelerated by lower hybrid waves in the TST-2 spherical tokamak. The camera consists of a pinhole made of tungsten alloy, a thin resin window, a thin LYSO scintillator disk, 5 fiber optic light guides and 5 photomultiplier tubes and shields. The camera is installed on a tangential port, and two-dimensional images are obtained by rotating the system around the axis of the port on a shot by shot basis. The typical energy range is 10 - 250 keV, and the energy resolution is about 100% (FWHM) at 100 keV. The measured images of a lower hybrid wave driven plasma show bright region at the inboard side (i.e.,

AB - A compact hard X-ray camera has been developed to study the behavior of fast electrons accelerated by lower hybrid waves in the TST-2 spherical tokamak. The camera consists of a pinhole made of tungsten alloy, a thin resin window, a thin LYSO scintillator disk, 5 fiber optic light guides and 5 photomultiplier tubes and shields. The camera is installed on a tangential port, and two-dimensional images are obtained by rotating the system around the axis of the port on a shot by shot basis. The typical energy range is 10 - 250 keV, and the energy resolution is about 100% (FWHM) at 100 keV. The measured images of a lower hybrid wave driven plasma show bright region at the inboard side (i.e.,

KW - hard X-ray measurement

KW - lower hybrid wave

KW - LYSO scintillator

KW - pinhole camera

KW - spherical tokamak

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JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

ER -

Development Of A Compact Hard X-Ray Camera On The Tst-2 Spherical Tokamak

Abstract

Funding

Keywords

ASJC Scopus subject areas

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