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Hybrid x-ray laser-plasma/laser-synchrotron facility for pump–probe studies of the extreme state of matter at NRC “Kurchatov Instituteстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 октября 2021 г.
- Авторы: Potemkin Fedor V., Mareev Evgeny I., Garmatina Alena A., Nazarov Maxim M., Fomin Evgeniy A., Stirin Alexander I., Korchuganov Vladimir N., Kvardakov Vladimir V., Gordienko Viacheslav M., Panchenko Vladislav Ya, Kovalchuk Mikhail M.
- Журнал: Review of Scientific Instruments
- Том: 92
- Год издания: 2021
- Издательство: AIP Publishing
- Местоположение издательства: United States
- Первая страница: 053101
- Последняя страница: 10
- DOI: 10.1063/5.0028228
- Аннотация: We developed a hybrid optical pump–x-ray probe facility based on the “Kurchatov’s synchrotron radiation source” and terawatt (TW) femtosecond laser. The bright x-ray photon source is based on either synchrotron radiation [up to 6 × 1014 photons/(s mm2 mrad2 0.1% bandwidth)] or laser-plasma generators (up to 108 photons/sr/pulse). The terawatt (TW) femtosecond laser pulse initiated phase transitions and a non-stationary “extreme” state of matter, while the delayed x-ray pulse acts as a probe. The synchronization between synchrotron radiation and laser pulses is achieved at 60.3 MHz using an intelligent field-programmable gate array-based phased locked loop. The timing jitter of the system is less than 30 ps. In laser-plasma sources, the x-ray and laser pulses are automatically synchronized because they are produced by using the same laser source (TW laser system). We have reached an x-ray yield of about 106 photons/sr/pulse with 6-mJ sub-ps laser pulses and using helium as a local gas medium. Under vacuum conditions, the laser energy increase up to 40 mJ leads to the enhancement of the x-ray yield of up to 108 photons/sr/pulse. The developed hybrid facility paves the way for a new class of time-resolved x-ray optical pump–probe experiments in the time interval from femtoseconds to microseconds and the energy spectrum from 3 to 30 keV.
- Добавил в систему: Потёмкин Фёдор Викторович