Responsivity calibration of the extreme ultraviolet spectrometer in the range of 175-435 Å
Responsivity calibration of the extreme ultraviolet spectrometer in the range of 175-435 Å
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极紫外光谱仪在175-435°范围内的响应度校准
DOI：
10.1063/1.4982798
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发表时间：
2017-04
期刊：
影响因子：
1.6
通讯作者：
Y. Zou
中科院分区：
文献类型：
--
作者：
B.Tu;M. C. Li;Q. F. Lu;Z. Z. Zhao;Y. Shen;Y. Yang;D. Lu;K. Yao;C. Y. Chen;H. J. Zhou;T. L. Huo;J.Xiao;R. Hutton;Y. Zou
我们报道了通过两种方法对掠入射平场极紫外光谱仪在175至435 Å之间的相对响应度进行校准。第一种方法是用同步辐射光源测量光栅的衍射效率。综合考虑光谱仪中其他光学元件的传输效率和量子效率，得到了光谱仪的总响应度。第二个实验是在上海高温超导电子束离子阱（SH-HtscEBIT）上测量C3+、N4+和O3+离子的谱线发射。通过碰撞辐射模型对极紫外光谱进行了理论模拟。计算中采用基于柔性原子程序的二阶相对论多体微扰理论方法计算能级和跃迁速率，采用密耦合R矩阵方法和相对论扭曲波方法计算电子碰撞激发的碰撞强度。与EBIT装置上的光谱测量结果进行了比较，得到了测量的相对谱线强度与模拟的相对谱线强度之间的差异。然后通过三次多项式函数拟合实现光谱仪的响应度校准。我们的测量结果表明，在175和435欧姆之间的响应度变化系数为1.46。两次标定结果一致，平均偏差在24%以内.此外，还对该波长范围内Civ，Nv和Oiv谱线的计算结果进行了评价.
We reported the relative responsivity calibration of the grazing-incidence flat-field EUV spectrometer between 175 and 435 Å by means of two methods. The first method is implemented by measuring the diffraction efficiency of the grating with synchrotron radiation light source. Considering the transmission efficiency and quantum efficiency of the other optical components in the spectrometer, the total responsivity was then obtained. The second one was carried out by measuring line emissions from C3+, N4+ and O3+ ions at Shanghai high temperature super conductor electron beam ion trap (SH-HtscEBIT). The EUV spectra were also simulated theoretically via a collisional radiative model. In the calculation, the second-order relativistic many-body perturbation theory approach based on the flexible atomic code was used to calculate the energy levels and transition rates; the close-coupling R-matrix approach and relativistic distorted wave method were utilized to calculate the collision strength of electron impact excitation. In comparison with the spectroscopic measurements at EBIT device, the differences between the measured and simulated relative line intensities were obtained. The responsivity calibration for the spectrometer was then achieved by a 3rd degree polynomial function fitting. Our measurement shows that the responsivity between 175 and 435 Å varies by factor of ∼ 46. The two results of calibration demonstrated a consistency within an average deviation of 24%. In addition, an evaluation of our calculations on C iv, N v and O iv line emissions in this wavelength region was given.
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专为上海 EBIT 和上海低能 EBIT 设计的便携式高分辨率软 X 射线和极紫外光谱仪
DOI：
10.1063/1.4876597
发表时间：
2014
期刊：
Review of Scientific Instruments
影响因子：
--
作者：
Zhan Shi;Ruifeng Zhao;Wenxian Li;BingshengTu;Yang Yang;Jun Xiao;Sven Huldt;Roger Hutton;Yaming Zou
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Y. Okamoto;M. Yoshikawa;N. Yamaguchi;C. Watabe;T. Tamano;E. Kawamori;Y. Watanabe;T. Furukawa
影响因子：
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M. Yoshikawa;N. Yamaguchi;T. Aota;K. Ikeda;Y. Okamoto;K. Yatsu;T. Tamano
DOI：
10.1086/429879
发表时间：
2005-06
期刊：
The Astrophysical Journal
影响因子：
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作者：
J. Lepson;P. Beiersdorfer;E. Behar;S. Kahn
通讯作者：
J. Lepson;P. Beiersdorfer;E. Behar;S. Kahn
DOI：
10.1088/0953-4075/47/17/175002
发表时间：
2014-08
期刊：
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子：
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作者：
M. L. Qiu;R. Zhao;X. Guo;Z. Z. Zhao-Z.;W. Li;S. Du;J. Xiao;K. Yao;C. Chen;R. Hutton
通讯作者：
M. L. Qiu;R. Zhao;X. Guo;Z. Z. Zhao-Z.;W. Li;S. Du;J. Xiao;K. Yao;C. Chen;R. Hutton