Laserwire at the Accelerator Test Facility 2 with submicrometer resolution

Abstract

A laserwire transverse electron beam size measurement system has been developed and operated at the Accelerator Test Facility 2 at the High Energy Accelerator Research Organization, Japan (KEK). Special electron beam optics were developed to create an approximately 1×100 μm (vertical× horizontal) electron beam at the laserwire location, which was profiled using 150 mJ, 71 ps laser pulses with a wavelength of 532 nm. The precise characterization of the laser propagation allows the non-Gaussian laserwire scan profiles caused by the laser divergence to be deconvolved. A minimum vertical electron beam size of 1.07±0.06(stat)±0.05(sys) μm was measured. A vertically focusing quadrupole just before the laserwire was varied while making laserwire measurements and the projected vertical emittance was measured to be 82.56±3.04 pm rad.

Original language	English
Article number	072802
Journal	Physical Review Special Topics - Accelerators and Beams
Volume	17
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevSTAB.17.072802
Publication status	Published - 9 Jul 2014
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)
Surfaces and Interfaces

Access to Document

10.1103/PhysRevSTAB.17.072802

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Laserwire at the Accelerator Test Facility 2 with submicrometer resolution. / Nevay, L. J.; Boogert, S. T.; Karataev, P.; Kruchinin, K.; Corner, L.; Howell, D. F.; Walczak, R.; Aryshev, A.; Urakawa, J.; Terunuma, N.

In: Physical Review Special Topics - Accelerators and Beams, Vol. 17, No. 7, 072802, 09.07.2014.

Research output: Contribution to journal › Article › peer-review

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title = "Laserwire at the Accelerator Test Facility 2 with submicrometer resolution",

abstract = "A laserwire transverse electron beam size measurement system has been developed and operated at the Accelerator Test Facility 2 at the High Energy Accelerator Research Organization, Japan (KEK). Special electron beam optics were developed to create an approximately 1×100 μm (vertical× horizontal) electron beam at the laserwire location, which was profiled using 150 mJ, 71 ps laser pulses with a wavelength of 532 nm. The precise characterization of the laser propagation allows the non-Gaussian laserwire scan profiles caused by the laser divergence to be deconvolved. A minimum vertical electron beam size of 1.07±0.06(stat)±0.05(sys) μm was measured. A vertically focusing quadrupole just before the laserwire was varied while making laserwire measurements and the projected vertical emittance was measured to be 82.56±3.04 pm rad.",

author = "Nevay, {L. J.} and Boogert, {S. T.} and P. Karataev and K. Kruchinin and L. Corner and Howell, {D. F.} and R. Walczak and A. Aryshev and J. Urakawa and N. Terunuma",

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AU - Nevay, L. J.

AU - Boogert, S. T.

AU - Karataev, P.

AU - Kruchinin, K.

AU - Corner, L.

AU - Howell, D. F.

AU - Walczak, R.

AU - Aryshev, A.

AU - Urakawa, J.

AU - Terunuma, N.

PY - 2014/7/9

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N2 - A laserwire transverse electron beam size measurement system has been developed and operated at the Accelerator Test Facility 2 at the High Energy Accelerator Research Organization, Japan (KEK). Special electron beam optics were developed to create an approximately 1×100 μm (vertical× horizontal) electron beam at the laserwire location, which was profiled using 150 mJ, 71 ps laser pulses with a wavelength of 532 nm. The precise characterization of the laser propagation allows the non-Gaussian laserwire scan profiles caused by the laser divergence to be deconvolved. A minimum vertical electron beam size of 1.07±0.06(stat)±0.05(sys) μm was measured. A vertically focusing quadrupole just before the laserwire was varied while making laserwire measurements and the projected vertical emittance was measured to be 82.56±3.04 pm rad.

AB - A laserwire transverse electron beam size measurement system has been developed and operated at the Accelerator Test Facility 2 at the High Energy Accelerator Research Organization, Japan (KEK). Special electron beam optics were developed to create an approximately 1×100 μm (vertical× horizontal) electron beam at the laserwire location, which was profiled using 150 mJ, 71 ps laser pulses with a wavelength of 532 nm. The precise characterization of the laser propagation allows the non-Gaussian laserwire scan profiles caused by the laser divergence to be deconvolved. A minimum vertical electron beam size of 1.07±0.06(stat)±0.05(sys) μm was measured. A vertically focusing quadrupole just before the laserwire was varied while making laserwire measurements and the projected vertical emittance was measured to be 82.56±3.04 pm rad.

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