Author/Authors :
Gu، نويسنده , , X. and Altinbas، نويسنده , , F.Z. and Beebe، نويسنده , , E. and Fischer، نويسنده , , W. and Frak، نويسنده , , B.M. and Gassner، نويسنده , , D.M. and Hamdi، نويسنده , , K. and Hock، نويسنده , , J. and Hoff، نويسنده , , L. and Kankiya، نويسنده , , P. and Lambiase، نويسنده , , R. and Luo، نويسنده , , Y. and Mapes، نويسنده , , M. and Mi، نويسنده , , J. and Miller، نويسنده , , Andrea T. and Montag، نويسنده , , C. and Nemesure، نويسنده , , S. and Okamura، نويسنده , , M. and Olsen، نويسنده , , R.H. and Pikin، نويسنده , , A.I. and Raparia، نويسنده , , D. and Rosas، نويسنده , , P.J. and Sandberg، نويسنده , , J. and Tan، نويسنده , , Y. and Theisen، نويسنده , , C. and Tuozzolo، نويسنده , , J. and Zhang، نويسنده , , W.، نويسنده ,
Abstract :
To compensate for the beam–beam effects from the proton–proton interactions at the two interaction points IP6 and IP8 in the Relativistic Heavy Ion Collider (RHIC), we are constructing two electron lenses (e-lenses) that we plan to install in the interaction region IR10. Before installing them, the electron gun, collector, instrumentation were tested and the electron beam properties were qualified on an electron lens test bench. We will present the test results and discuss our measurement of the electron beam current and of the electron gun perveance. We achieved a maximum current of 1 A with 5 kV energy for both the pulsed- and the DC-beam (which is a long turn-by-turn pulse beam). We measured beam transverse profiles with an yttrium aluminum garnet (YAG) screen and pinhole detector, and compared those to simulated beam profiles. Measurements of the pulsed electron beam stability were obtained by measuring the modulator voltage.
