IBIC2021 - List of Authors (Aryshev, A.)

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MOPP37

KEK LUCX Facility Laser Transport Line Alignment Automatization

K. Popov
Sokendai, Ibaraki, Japan
A. Aryshev, N. Terunuma, J. Urakawa
KEK, Ibaraki, Japan

KEK LUCX facility* is a linear accelerator devoted to the beam instrumentation R&Ds for present and future accelerator systems and colliders. Parameters of electron beam generated by laser-driven photocathode-equipped gun are sensitive to laser wavelength, laser pulse intensity, duration (RMS), spot size (RMS) and spot position on the photocathode. Typically, tuning of such generation schema requires stable laser pulse generation and shaping, alignment of the laser transport line (LTL) and final focus optical system. Conventional diagnostics along LTL may include CCD cameras for position and profile tuning and monitoring including that at the virtual cathode position. An approach to achieve laser spot size and position with the high level of stability and reproducibility on the photocathode is associated with the implementation of geometric optics based software protocol which allows for automatic- or semi-automatic alignment of entire LTL. This approach was developed and applied for KEK LUCX RF gun LTL alignment. It employs two CCD cameras**, motorized mirrors and optical telescope designed for laser pulse delivery to the photocathode. The report shows the system stability and repeatability results, as well as commissioning technical notes.
*A. Aryshev et al., Appl. Phys. Lett. 111, 033508 (2017).
**https://www.jai.com/products/cm^-040-ge

Poster MOPP37 [1.170 MB]

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Paper	Title	Page
MOPP37	KEK LUCX Facility Laser Transport Line Alignment Automatization
	K. Popov Sokendai, Ibaraki, Japan A. Aryshev, N. Terunuma, J. Urakawa KEK, Ibaraki, Japan
	KEK LUCX facility* is a linear accelerator devoted to the beam instrumentation R&Ds for present and future accelerator systems and colliders. Parameters of electron beam generated by laser-driven photocathode-equipped gun are sensitive to laser wavelength, laser pulse intensity, duration (RMS), spot size (RMS) and spot position on the photocathode. Typically, tuning of such generation schema requires stable laser pulse generation and shaping, alignment of the laser transport line (LTL) and final focus optical system. Conventional diagnostics along LTL may include CCD cameras for position and profile tuning and monitoring including that at the virtual cathode position. An approach to achieve laser spot size and position with the high level of stability and reproducibility on the photocathode is associated with the implementation of geometric optics based software protocol which allows for automatic- or semi-automatic alignment of entire LTL. This approach was developed and applied for KEK LUCX RF gun LTL alignment. It employs two CCD cameras*, motorized mirrors and optical telescope designed for laser pulse delivery to the photocathode. The report shows the system stability and repeatability results, as well as commissioning technical notes. A. Aryshev et al., Appl. Phys. Lett. 111, 033508 (2017). **https://www.jai.com/products/cm^-040-ge
	Poster MOPP37 [1.170 MB]
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)