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A new concept for temporal gating of synchrotron X‐ray pulses (2021)

Schmidt, D. ; Bauer, R. ; Chung, S. ; [et al.]

International Union of Crystallography | 5 Abbey Square, Chester, Cheshire CH1 2HU, England

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Publication Date: 2021-07-02

Description: A new concept for temporal gating of synchrotron X‐ray pulses based on laser‐induced thermal transient gratings is presented. First experimental tests of the concept yield a diffraction efficiency of 0.18%; however, the calculations indicate a theoretical efficiency and contrast of 〉30% and 10−5, respectively. The full efficiency of the pulse picker has not been reached yet due to a long‐range thermal deformation of the sample after absorption of the excitation laser. This method can be implemented in a broad spectral range (100 eV to 20 keV) and is only minimally invasive to an existing setup.

Description: A new concept for temporal gating of synchrotron X‐ray pulses based on laser‐induced thermal transient gratings is presented.

Keywords: 548 ; synchrotron ; time‐resolved ; thermal deformation ; transient grating ; pulse picking

Type: article

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