Electron temperature diagnostics of aluminium plasma in a z-pinch experiment at the ＂QiangGuang-1＂ facility

Two curved crystal spectrometers are set up on the ＂QiangGuang-1＂ generator to measure the z-pinch plasma spectra emitted from planar aluminum wire array loads. Kodak Biomax-MS film and an IRD AXUVHS5# array are employed to record time-integrated and time-resolved free-bound radiation, respectively....

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Published inChinese physics B Vol. 21; no. 12; pp. 322 - 326
Main Author 李沫 吴坚 王亮平 吴刚 韩娟娟 郭宁 邱孟通
Format Journal Article
LanguageEnglish
Published 01.12.2012
Subjects
Aluminum
Arrays
Detectors
Diagnosis
Electron temperature
Molybdenum
Photons
Plasma spectra
Spectrometers
z箍缩
Z箍缩等离子体
实验
强光
温度诊断
电子温度
设施
铝等离子体
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Summary:Two curved crystal spectrometers are set up on the ＂QiangGuang-1＂ generator to measure the z-pinch plasma spectra emitted from planar aluminum wire array loads. Kodak Biomax-MS film and an IRD AXUVHS5# array are employed to record time-integrated and time-resolved free-bound radiation, respectively. The photon energy recorded by each detector is ascertained by using the L-shell lines of molybdenum plasma. Based on the exponential relation between the continuum power and photon energies, the aluminum plasma electron temperatures are measured. For the time-integrated diagnosis, several ＂bright spots＂ indicate electron temperatures between （450 eV- 520 eV） ± 35%. And for the time-resolved ones, the result shows that the electron temperature reaches about 800 eV±30% at peak power. The system satisfies the demand of z-pinch plasma electron temperature diagnosis on a - 1 MA facility.
Bibliography:Li Mo, Wu Jian, Wang Liang-Ping, Wu Gang, Man Juan-Juan Guo Ning, and Qiu Meng-TongNorthwest Institute of Nuclear Technology, Xi＇an 710024, China
electron temperature, continuum, curved crystal spectrometer, z-pinch
11-5639/O4
Two curved crystal spectrometers are set up on the ＂QiangGuang-1＂ generator to measure the z-pinch plasma spectra emitted from planar aluminum wire array loads. Kodak Biomax-MS film and an IRD AXUVHS5# array are employed to record time-integrated and time-resolved free-bound radiation, respectively. The photon energy recorded by each detector is ascertained by using the L-shell lines of molybdenum plasma. Based on the exponential relation between the continuum power and photon energies, the aluminum plasma electron temperatures are measured. For the time-integrated diagnosis, several ＂bright spots＂ indicate electron temperatures between （450 eV- 520 eV） ± 35%. And for the time-resolved ones, the result shows that the electron temperature reaches about 800 eV±30% at peak power. The system satisfies the demand of z-pinch plasma electron temperature diagnosis on a - 1 MA facility.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/12/125202