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Using LVIC in current mode for energy spectrum reconstruction: experiments and validation

Abstract : In tokamaks with Tungsten plasma facing components such as ITER, pollution of the plasma by heavy impurities is a major concern as it can lead to radiative breakdown. A diagnostic allowing reconstruction of the impurity distribution is thus of high interest. The radiation emitted by such impurities is mainly composed of soft X-rays (SXR) in the [0.1, 100] keV range. Due to the ITER radiative environment, in particular during high D-T power phase classic X-ray detectors such as semiconductor diodes might be too fragile and are thus not viable. Instead, advanced detectors (such as gas-filled detectors) are nowadays considered. The Low Voltage Ionization Chamber (LVIC) is one of the most promising candidate for X-ray measurement during the ITER nuclear phase [1]. A complete model of the detector recently developed at IRFM [2] now requires experimental validation.
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Conference poster
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https://hal-cea.archives-ouvertes.fr/cea-03785814
Contributor : valerie icard Connect in order to contact the contributor
Submitted on : Friday, September 23, 2022 - 2:55:14 PM
Last modification on : Saturday, September 24, 2022 - 3:39:00 AM

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  • HAL Id : cea-03785814, version 1

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D Mazon, D Colette, E Soudet, P Malard, M Walsh, et al.. Using LVIC in current mode for energy spectrum reconstruction: experiments and validation. High-Temperature Plasma Diagnostics Conference 2022, May 2022, Rochester, United States. ⟨cea-03785814⟩

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