Spectral Characteristics of Polarization Radiation in the Water Window Range

Spectral Characteristics of Polarization Radiation in the Water Window Range

Bibliographic Details
Parent link:International Journal of Molecular Sciences.— .— Basel: MDPI AG
Vol. 25, iss. 8.— 2024.— Article number 4246, 17 p.
Corporate Author: National Research Tomsk Polytechnic University
Other Authors: Shevelev M. V. Mihail Viktorovich, Konkov A. S. Anatoly Sergeevich, Uglov S. R. Sergey Romanovich, Alekseev B. A. Boris Alexandrovich, Cherepennikov Yu. M. Yuriy Mihaylovich
Summary:Title screen
The high-intensity and monochromatic radiation sources in the water window spectral range are desirable for many applications. One of the potential candidates of soft X-ray sources is polarization radiation produced by a charged particle passing through a thin foil. In the soft X-ray range near the absorption edges of a target material, the real part of dielectric permittivity can exceed unity, and the Tamm–Frank criterion is fulfilled. Thus, two types of radiation are produced: transition and Cherenkov radiation. In this report, we theoretically investigated the spectral characteristics of radiation produced in both cases when the Tamm–Frank criterion is met or not met. We showed the dependences of the spectrum as a function of thickness and the incidence angle. To describe the properties of polarization radiation and the complex dielectric permittivity, the polarization current approach and Henke’s model were used, respectively.
Текстовый файл
Published: 2024
Subjects:
электронный ресурс
труды учёных ТПУ
transition radiation
Cherenkov effect
the water window spectral range
Online Access:http://earchive.tpu.ru/handle/11683/132470
https://doi.org/10.3390/qubs8010006
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672871

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