Developments of scintillator-based soft x-ray diagnostic in LHD with CsI:Tl and P47 scintillators
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- T. Bando
- SOKENDAI (The Graduate University for Advanced Studies) 1 , 322-6 Oroshi-cho, Toki 509-5292, Japan
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- S. Ohdachi
- SOKENDAI (The Graduate University for Advanced Studies) 1 , 322-6 Oroshi-cho, Toki 509-5292, Japan
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- Y. Suzuki
- SOKENDAI (The Graduate University for Advanced Studies) 1 , 322-6 Oroshi-cho, Toki 509-5292, Japan
説明
<jats:p>Multi-channel soft x-ray (SX) diagnostic has been used in the large helical device (LHD) to research magnetohydrodynamic equilibria and activities. However, in the coming deuterium plasma experiments of LHD, it will be difficult to use semiconductor systems near LHD. Therefore, a new type of SX diagnostic, a scintillator-based type diagnostic, has been investigated in order to avoid damage from the radiation. A fiber optic plate coated by P47 scintillator will be used to detect SX emission. Scintillation light will be transferred by pure silica core optical fibers and detected by photomultiplier tubes. A vertically elongated section of LHD will be covered by a 13 ch. array. Effects from the Deuterium Deuterium neutrons can be negligible when the scintillator is covered by a Pb plate 4 cm in thickness to avoid gamma-rays.</jats:p>
収録刊行物
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- Review of Scientific Instruments
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Review of Scientific Instruments 87 (11), 11E317-, 2016-08-10
AIP Publishing