Micron-scale laser-wire scanner for the KEK Accelerator Test Facility extraction line

Stewart T. Boogert, Grahame A. Blair, Gary Boorman, Alessio Bosco, Lawrence C. Deacon, Pavel Karataev, Alexander Aryshev, Masafumi Fukuda, Nobihiro Terunuma, Junji Urakawa, Laura Corner, Nicolas Delerue, Brian Foster, David Howell, Myriam Newman, Rohan Senanayake, Roman Walczak, Fred Ganaway

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


A laser-wire transverse electron beam size measurement system has been constructed and operated at the Accelerator Test Facility (ATF) extraction line at KEK. The construction of the system is described in detail along with the environment of the ATF related to the laser wire. A special set of electron beam optics was developed to generate an approximately 1μm vertical focus at the laser-wire location. The results of our operation at the ATF extraction line are presented, where a minimum rms electron beam size of 4.8±0.3μm was measured, and smaller electron beam sizes can be measured by developing the method further. The beam size at the laser-wire location was changed using quadrupoles and the resulting electron beam size measured, and vertical emittance extracted.

Original languageEnglish
Article number122801
JournalPhysical Review Special Topics - Accelerators and Beams
Issue number12
Publication statusPublished - 6 Dec 2010
Externally publishedYes

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Micron-scale laser-wire scanner for the KEK Accelerator Test Facility extraction line'. Together they form a unique fingerprint.

Cite this