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Transverse profile of the electron beam for the RHIC electron lenses

Journal Article · · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
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  1. Brookhaven National Laboratory (BNL), Upton, NY (United States)
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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.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
AC02-98CH10886
OSTI ID:
1225437
Alternate ID(s):
OSTI ID: 22461156
OSTI ID: 1249795
Report Number(s):
BNL--108519-2015-JA; KB0202011
Journal Information:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Issue: C Vol. 798; ISSN 0168-9002
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Electron lenses for head-on beam-beam compensation in RHIC journal February 2017
Compensation of head-on beam-beam induced resonance driving terms and tune spread in the Relativistic Heavy Ion Collider journal September 2017
Operational Head-on Beam-Beam Compensation with Electron Lenses in the Relativistic Heavy Ion Collider journal December 2015

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Related Subjects

43 PARTICLE ACCELERATORS
Gaussian beam
Relativistic Heavy Ion Collider
electron lenses
low energy electron beam
space charge
transverse beam profile