{"title":"反向加速器II RFP中的离子温度","authors":"P. Green, S. Robertson","doi":"10.1109/PLASMA.1989.166070","DOIUrl":null,"url":null,"abstract":"A seven-channel, f14 polychrometer with UV quartz optics has been constructed for ion temperature measurements on the Reversatron II RFP (R/a=50 cm/8 cm). The spectrometer has a focal length of 1.1 m and utilizes an 1800-line/mm grating. The spectrum is spread over a linear array of photomultiplier tubes by a 2-mm-diameter quartz cylinder lens. Resolution is below 0.1 AA, and channel separation is 0.4 AA. Initial measurements have been made in 25-kA helium discharges with no conducting shell surrounding the resistive vacuum chamber. The He I line at 3888 AA, which is predominantly from the plasma edge, indicates T/sub i/ approximately=8 eV. The He II line at 4685 AA, which is less weighted by the edge, indicates T/sub i/ approximately=17 eV. A search is being made for impurity lines that are indicative of the central region of the discharge. Similar measurements will be made with other boundary conditions.<<ETX>>","PeriodicalId":165717,"journal":{"name":"IEEE 1989 International Conference on Plasma Science","volume":"40 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1989-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ion temperature in the Reversatron II RFP\",\"authors\":\"P. Green, S. Robertson\",\"doi\":\"10.1109/PLASMA.1989.166070\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A seven-channel, f14 polychrometer with UV quartz optics has been constructed for ion temperature measurements on the Reversatron II RFP (R/a=50 cm/8 cm). The spectrometer has a focal length of 1.1 m and utilizes an 1800-line/mm grating. The spectrum is spread over a linear array of photomultiplier tubes by a 2-mm-diameter quartz cylinder lens. Resolution is below 0.1 AA, and channel separation is 0.4 AA. Initial measurements have been made in 25-kA helium discharges with no conducting shell surrounding the resistive vacuum chamber. The He I line at 3888 AA, which is predominantly from the plasma edge, indicates T/sub i/ approximately=8 eV. The He II line at 4685 AA, which is less weighted by the edge, indicates T/sub i/ approximately=17 eV. A search is being made for impurity lines that are indicative of the central region of the discharge. Similar measurements will be made with other boundary conditions.<<ETX>>\",\"PeriodicalId\":165717,\"journal\":{\"name\":\"IEEE 1989 International Conference on Plasma Science\",\"volume\":\"40 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-05-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 1989 International Conference on Plasma Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PLASMA.1989.166070\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1989 International Conference on Plasma Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PLASMA.1989.166070","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
在reveratron II RFP (R/ A =50 cm/8 cm)上构建了一个7通道，f14紫外石英光学多色计，用于离子温度测量。光谱仪的焦距为1.1米，采用1800线/毫米光栅。光谱通过直径2毫米的石英柱面透镜分布在光电倍增管的线性阵列上。分辨率低于0.1 AA，通道间隔为0.4 AA。最初的测量是在25ka氦气放电中进行的，在电阻真空室周围没有导电壳。3888aa处的He I线主要来自等离子体边缘，表明T/sub I /约= 8ev。4685 AA处的He II线被边缘加权较小，表示T/sub i/约=17 eV。正在寻找指示放电中心区域的杂质线。类似的测量将在其他边界条件下进行。
A seven-channel, f14 polychrometer with UV quartz optics has been constructed for ion temperature measurements on the Reversatron II RFP (R/a=50 cm/8 cm). The spectrometer has a focal length of 1.1 m and utilizes an 1800-line/mm grating. The spectrum is spread over a linear array of photomultiplier tubes by a 2-mm-diameter quartz cylinder lens. Resolution is below 0.1 AA, and channel separation is 0.4 AA. Initial measurements have been made in 25-kA helium discharges with no conducting shell surrounding the resistive vacuum chamber. The He I line at 3888 AA, which is predominantly from the plasma edge, indicates T/sub i/ approximately=8 eV. The He II line at 4685 AA, which is less weighted by the edge, indicates T/sub i/ approximately=17 eV. A search is being made for impurity lines that are indicative of the central region of the discharge. Similar measurements will be made with other boundary conditions.<>
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