TY - JOUR

T1 - Hybrid x-ray laser-plasma/laser-synchrotron facility for pump-probe studies of the extreme state of matter at NRC "kurchatov Institute"

AU - Potemkin, Fedor V.

AU - Mareev, Evgeny I.

AU - Garmatina, Alena A.

AU - Nazarov, Maxim M.

AU - Fomin, Evgeniy A.

AU - Stirin, Alexander I.

AU - Korchuganov, Vladimir N.

AU - Kvardakov, Vladimir V.

AU - Gordienko, Viacheslav M.

AU - Panchenko, Vladislav Ya

AU - Kovalchuk, Mikhail M.

N1 - Publisher Copyright: © 2021 Author(s).

PY - 2021/5/1

Y1 - 2021/5/1

N2 - 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.

AB - 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.

KW - PHASE-TRANSITIONS

KW - SN TRANSITION

KW - DIFFRACTION

KW - ABSORPTION

KW - CATALYST

KW - WATER

UR - http://www.scopus.com/inward/record.url?scp=85105742277&partnerID=8YFLogxK

U2 - 10.1063/5.0028228

DO - 10.1063/5.0028228

M3 - Article

C2 - 34243278

AN - SCOPUS:85105742277

VL - 92

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 5

M1 - 053101

ER -