Construction of a magnetic bottle spectrometer and its application to pulse duration measurement of X-ray laser using a pump-probe method

AIP Advances Volume 5 Page 117101- published_at 2015-11-02
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Title ( eng )
Construction of a magnetic bottle spectrometer and its application to pulse duration measurement of X-ray laser using a pump-probe method
Creator
Hasegawa N.
Kishimoto M.
Nishikino M.
Ishino M.
Kawachi T.
Source Title
AIP Advances
Volume 5
Start Page 117101
Abstract
To characterize the temporal evolution of ultrashort X-ray pulses emitted by laser plasmas using a pump-probe method, a magnetic bottle time-of-flight electron spectrometer is constructed. The design is determined by numerical calculations of a mirror magnetic field and of the electron trajectory in a flight tube. The performance of the spectrometer is characterized by measuring the electron spectra of xenon atoms irradiated with a laser-driven plasma X-ray pulse. In addition, two-color above-threshold ionization (ATI) experiment is conducted for measurement of the X-ray laser pulse duration, in which xenon atoms are simultaneously irradiated with an X-ray laser pump and an IR laser probe. The correlation in the intensity of the sideband spectra of the 4d inner-shell photoelectrons and in the time delay of the two laser pulses yields an X-ray pulse width of 5.7 ps, in good agreement with the value obtained using an X-ray streak camera.
Descriptions
This work was supported by a Grant-in-Aid for Scientific Research B (No. 26286078) from the Japanese Society for the Promotion of Science. We thank the JAEA X-ray laser research group for laser operations. This work was performed under the shared use program of JAEA Facilities.
Language
eng
Resource Type journal article
Publisher
AIP Publishing
Date of Issued 2015-11-02
Rights
C 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.[http://dx.doi.org/10.1063/1.4935260]
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 2158-3226
[URI] https://aip.scitation.org/doi/10.1063/1.4935260
[DOI] 10.1063/1.4935260