Soft x-ray time-resolved spectroscopy

Hai Zhang; Qin Lao Yang; B. P. Guo; Hanben Niu; Jingzhen Li; Yun Cai Wang; Zhong Xian F. Song; Zhongben L. Liu

doi:10.1117/12.145804

1 January 1993 Soft x-ray time-resolved spectroscopy

Hai Zhang, Qin Lao Yang, B. P. Guo, Hanben Niu, Jingzhen Li, Yun Cai Wang, Zhong Xian F. Song, Zhongben L. Liu

Proceedings Volume 1801, 20th International Congress on High Speed Photography and Photonics; (1993) https://doi.org/10.1117/12.145804
Event: 20th International Congress on High Speed Photography and Photonics, 1992, Victoria, BC, Canada

Abstract

The soft x-ray time-resolved spectroscopy is composed of a soft x-ray spectroscopic head and a soft x-ray streak camera. Because the soft x-ray spectroscopic head possesses a spectral resolution of 0.1 angstrom, the performances of the whole system mainly depend on the characteristics of the soft x-ray streak camera. In this paper, therefore, the design features and characterization of the soft x-ray streak camera are mainly described. In order to record the spectrum ranging from 30 angstroms to 230 angstroms on a limited photocathode slit length, the whole camera including the photocathode can be shifted along the spectrum without dismantling the camera from the soft x-ray generating chamber. The soft x-ray streak image tube possesses a specially designed vacuum-tight valve, which could be closed or opened in the vacuum chamber operated by a step motor, to prevent the photocathode sensitive to soft x- ray and internal intensified microchannel plate from pollution by water vapor or dust in the atmosphere. In order to test its dynamic performances, a soft x-ray diode was developed. The dynamic testing shows that the temporal resolution of this camera is 5 ps, which is limited by our soft x-ray source, dynamic spatial resolution is 20 lp/mm which implies the spectral resolution of 0.25 angstroms. Because of using CsI or KI photocathode deposited on a 1000 angstrom thick parylence film, the spectral responses range is approximately 0.05 to 10 KeV.

Citation Download Citation

Hai Zhang, Qin Lao Yang, B. P. Guo, Hanben Niu, Jingzhen Li, Yun Cai Wang, Zhong Xian F. Song, and Zhongben L. Liu "Soft x-ray time-resolved spectroscopy", Proc. SPIE 1801, 20th International Congress on High Speed Photography and Photonics, (1 January 1993); https://doi.org/10.1117/12.145804

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KEYWORDS

Streak cameras

Cameras

Diodes

Spatial resolution

X-rays

Head

Temporal resolution

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