COSMONAUT: A COmpact spectrometer for measurements of neutrons at the ASDEX upgrade tokamak.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-08-01 DOI:10.1063/5.0218178

M Nocente, A Dal Molin, D Rigamonti, M Dalla Rosa, B Fernández, S Fugazza, C Guerrero, G Gorini, Y Kazakov, G Tardini, M Tardocchi

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Abstract

A COmpact Spectrometer for Measurements Of Neutrons at the ASDEX Upgrade Tokamak (COSMONAUT) has been developed for spectroscopy measurements of the 2.45 MeV neutron emission from deuterium plasmas at the ASDEX Upgrade. The instrument is based on a CLYC-7 inorganic scintillator, whereby the detection of fusion neutrons occurs via their interaction with 35Cl nuclei in the detector crystal, leading to a peak in the detector response function and providing excellent neutron/gamma-ray discrimination capabilities. The diagnostics is installed along a radial line of sight and makes use of a digital system to record time resolved data for the whole duration of the discharge. Measurements in ASDEX Upgrade plasmas with neutral beam injection have been carried out and are successfully interpreted using state-of-the-art modeling codes. Next step applications of the diagnostics are in experiments aimed at generating energetic particles by ion cyclotron resonance heating schemes. In these scenarios, COSMONAUT will provide unique information on the acceleration of deuterons beyond the beam injection energy and on their confinement, for comparison with modeling.

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COSMONAUT：用于测量 ASDEX 升级托卡马克中子的 COmpact 光谱仪。

为测量 ASDEX 升级版托卡马克（COSMONAUT）的氘等离子体发射的 2.45 MeV 中子而开发的 COmpact 光谱仪。该仪器以 CLYC-7 无机闪烁体为基础，通过与探测器晶体中的 35Cl 核相互作用来探测聚变中子，从而在探测器响应函数中形成峰值，并提供出色的中子/伽马射线分辨能力。诊断仪沿径向视线安装，利用数字系统记录整个放电过程的时间分辨数据。已经在 ASDEX 升级等离子体中进行了中性束注入测量，并使用最先进的建模代码进行了成功解释。诊断仪的下一步应用是通过离子回旋共振加热方案产生高能粒子的实验。在这些情况下，COSMONAUT 将提供有关氘核加速度超过射束能量及其限制的独特信息，以便与建模进行比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.