24-27 October 2017
Faculty of Radio Physics, Electronics and Computer Systems
Europe/Kiev timezone

PHOTODIODES SPECTRAL SENSITIVITY INFLUENCE ON THE TWO FOILS SOFT X-RAY TECHNIQUE IN THE URAGAN TORSATRONS.

Not scheduled
15m
Faculty of Radio Physics, Electronics and Computer Systems

Faculty of Radio Physics, Electronics and Computer Systems

Faculty of Radio Physics, Electronics and Computer Systems of Taras Shevchenko National University of Kyiv, acad. Glushkov ave., 4g, Kyiv, Ukraine
Oral Plasma Physics

Speaker

Ms Olena Turianska (Institute of Plasma Physics, National Science Center “Kharkiv Institute of Physics and Technology”)

Description

Soft X-ray (SXR) diagnostics is routinely used in URAGAN-3M and URAGAN-2M torsatrons. One of the SXR diagnostic applications is based on the plasma temperature estimation. The ratio of the SXR signals passed through two different foils is used for the temperature estimation. The spectral sensitivity of the photodiode itself can affect the temperature measurement in addition to the spectral dependence of the foil absorption function. Set of different modeling spectral sensitivity functions was used for numerical calculation of the SXR signals ratio. The influence is negligible in the case of the flat sensitivity in the energy range 5-500eV in the case of thin Al foils (for example in the AXUV-20EL photodiodes case)

Primary author

Ms Olena Turianska (Institute of Plasma Physics, National Science Center “Kharkiv Institute of Physics and Technology”)

Presentation Materials

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