Absolute calibration of space- and time-resolving flat-field vacuum ultraviolet spectrograph under both P and S polarized light conditions for plasma diagnostics

Y. Okamoto, M. Yoshikawa, N. Yamaguchi, C. Watabe, T. Tamano, E. Kawamori, Y. Watanabe, T. Furukawa, Y. Kubota, K. Sedo, K. Yatsu

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Abstract

Measurement of spectra in the wavelength range from vacuum ultraviolet (VUV) to soft x ray is an important means to diagnose impurity behavior in magnetically confined plasmas used in fusion plasmas. Recently, a space- and time-resolving flat-field grazing-incidence VUV spectrograph was constructed for the simultaneous observation of spatial, temporal, and spectral distributions of plasma radiation in the wavelength range of 150-1050 Å. Absolute calibration experiments were performed at beamline 11C and beamline 12A in the Photon Factory at the High Energy Acceleration Research Organization. The absolute sensitivity of the VUV spectrograph was measured under both P and S polarized light conditions.

Original languageEnglish
Pages (from-to)4366-4371
Number of pages6
JournalReview of Scientific Instruments
Volume72
Issue number12
DOIs
Publication statusPublished - 2001 Dec 1

All Science Journal Classification (ASJC) codes

  • Instrumentation

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    Okamoto, Y., Yoshikawa, M., Yamaguchi, N., Watabe, C., Tamano, T., Kawamori, E., Watanabe, Y., Furukawa, T., Kubota, Y., Sedo, K., & Yatsu, K. (2001). Absolute calibration of space- and time-resolving flat-field vacuum ultraviolet spectrograph under both P and S polarized light conditions for plasma diagnostics. Review of Scientific Instruments, 72(12), 4366-4371. https://doi.org/10.1063/1.1416105