Shishir PUROHIT, Manoj K. GUPTA, Malay B. CHOWDHURI, Umesh NAGORA, Yashika TAUNK, Abhishek KUMAR, Kajal GARG, Surya K. PATHAK, Kumarpalsinh A. JADEJA, Rohit KUMAR, Kumudni TAHILIANI, Sameer KUMAR, Kaushal M. PATEL, Rakesh L. TANNA, Supriya A. NAIR, Joydeep GHOSH
{"title":"ADITYA-U托卡马克中子等离子体硬x射线谱的时间演化研究","authors":"Shishir PUROHIT, Manoj K. GUPTA, Malay B. CHOWDHURI, Umesh NAGORA, Yashika TAUNK, Abhishek KUMAR, Kajal GARG, Surya K. PATHAK, Kumarpalsinh A. JADEJA, Rohit KUMAR, Kumudni TAHILIANI, Sameer KUMAR, Kaushal M. PATEL, Rakesh L. TANNA, Supriya A. NAIR, Joydeep GHOSH","doi":"10.1585/pfr.18.2402079","DOIUrl":null,"url":null,"abstract":"The adverse effect associated with runaway electrons (RE) requires the temporal monitoring of the Hard X-ray (HX) spectrum produced by RE. This enables us to know the photon flux corresponding to a particular energy of HX in temporal space. A Lanthanum Bromide (LaBr3)-based HX spectrometer system (80 keV ∼ 5 MeV) is routinely operated on the ADITYA-U tokamak for monitoring the temporal evolution of the HX spectrum. The temporal evolutions of the HX energy having maximum count and the average RE temperature (RE average energy) have been analyzed for the plasmas injected with neon (Ne) impurity. It has been found that peak energy and average runaway energy reduces significantly after the Ne gas puffand this reduction happens when the electron density rises after the Ne gas puff. The RE temperature values were ∼ 620 KeV and 230 KeV before and after the Ne injection, respectively. The spectral shape, in both counts and energy, shrunk drastically, suggesting the reduction of the HX emission after the Ne gas puffing.","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.8000,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigation of Temporal Evolution of Hard X-Ray Spectrum from Neon-Seeded Plasma of ADITYA-U Tokamak\",\"authors\":\"Shishir PUROHIT, Manoj K. GUPTA, Malay B. CHOWDHURI, Umesh NAGORA, Yashika TAUNK, Abhishek KUMAR, Kajal GARG, Surya K. PATHAK, Kumarpalsinh A. JADEJA, Rohit KUMAR, Kumudni TAHILIANI, Sameer KUMAR, Kaushal M. PATEL, Rakesh L. TANNA, Supriya A. NAIR, Joydeep GHOSH\",\"doi\":\"10.1585/pfr.18.2402079\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The adverse effect associated with runaway electrons (RE) requires the temporal monitoring of the Hard X-ray (HX) spectrum produced by RE. This enables us to know the photon flux corresponding to a particular energy of HX in temporal space. A Lanthanum Bromide (LaBr3)-based HX spectrometer system (80 keV ∼ 5 MeV) is routinely operated on the ADITYA-U tokamak for monitoring the temporal evolution of the HX spectrum. The temporal evolutions of the HX energy having maximum count and the average RE temperature (RE average energy) have been analyzed for the plasmas injected with neon (Ne) impurity. It has been found that peak energy and average runaway energy reduces significantly after the Ne gas puffand this reduction happens when the electron density rises after the Ne gas puff. The RE temperature values were ∼ 620 KeV and 230 KeV before and after the Ne injection, respectively. The spectral shape, in both counts and energy, shrunk drastically, suggesting the reduction of the HX emission after the Ne gas puffing.\",\"PeriodicalId\":20247,\"journal\":{\"name\":\"Plasma and Fusion Research\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2023-09-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plasma and Fusion Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1585/pfr.18.2402079\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, FLUIDS & PLASMAS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma and Fusion Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1585/pfr.18.2402079","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
Investigation of Temporal Evolution of Hard X-Ray Spectrum from Neon-Seeded Plasma of ADITYA-U Tokamak
The adverse effect associated with runaway electrons (RE) requires the temporal monitoring of the Hard X-ray (HX) spectrum produced by RE. This enables us to know the photon flux corresponding to a particular energy of HX in temporal space. A Lanthanum Bromide (LaBr3)-based HX spectrometer system (80 keV ∼ 5 MeV) is routinely operated on the ADITYA-U tokamak for monitoring the temporal evolution of the HX spectrum. The temporal evolutions of the HX energy having maximum count and the average RE temperature (RE average energy) have been analyzed for the plasmas injected with neon (Ne) impurity. It has been found that peak energy and average runaway energy reduces significantly after the Ne gas puffand this reduction happens when the electron density rises after the Ne gas puff. The RE temperature values were ∼ 620 KeV and 230 KeV before and after the Ne injection, respectively. The spectral shape, in both counts and energy, shrunk drastically, suggesting the reduction of the HX emission after the Ne gas puffing.
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