Beam dynamics enhancement due to accelerating field symmetrization in the BNL/SLAC/UCLA 1.6 cell S-band photocathode RF gun | Zendy

D.T. Palmer | Zendy; R.H. Miller | Zendy; X.J. Wang | Zendy; I. BenZvi | Zendy

Open Access

Beam dynamics enhancement due to accelerating field symmetrization in the BNL/SLAC/UCLA 1.6 cell S-band photocathode RF gun

Author(s) -

D.T. Palmer,

R.H. Miller,

X.J. Wang,

I. BenZvi

Publication year - 1997

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/495805

Subject(s) - photocathode , electron gun , physics , optics , linear particle accelerator , radio frequency , beam (structure) , klystron , coupling (piping) , electron , cathode ray , nuclear physics , materials science , electrical engineering , engineering , metallurgy

A 1.6 cell photocathode S-Band gun developed by the BNL/SLAC/UCLA collaboration is now in operation at the Brookhaven Accelerator Test Facility (ATF). One of the main features of this RF gun is the symmetrization of the RF coupling iris with an identical vacuum pumping port located in the full cell. The effects of the asymmetry caused by the RF coupling iris were experimentally investigated by positioning a metallic plunger at the back wall of the vacuum port iris. The higher order modes produced were studied using electron beamlets with 8-fold symmetry. The 8-fold beamlets were produced by masking the laser beam. These experimental results indicate that the integrated electrical center and the geometrical center of the gun are within 175 {micro}m. Which is within the laser alignment tolerance of 250 {micro}m

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research