DIFFERENTIAL CURRENT MEASUREMENT IN THE BNL ENERGY RECOVERY LINAC TEST FACILITY.
Conference
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OSTI ID:15020019
An Energy Recovery Linac (ERL) test facility is presently under construction at BNL [1,2]. The goal of this test facility is to demonstrate CW operation with an average beam current greater than 100mA, and with greater than 99.95% efficiency of current recovery. This facility will serve as a test bed for the novel high current CW photo-cathode [3,4], the superconducting RF cavity with HOM dampers [5,6], and the lattice [7,8] and feedback systems needed to insure the specified beam parameters. It is an important stepping stone for electron cooling in RHIC [9], and essential to meet the luminosity specifications of RHICII [10]. The expertise and experience gained in this effort might also extend forward into a 10-20GeV ERL for the electron-ion collider eRHIC [11]. We report here on the use of a technique of differential current measurement to monitor the efficiency of current recovery in the test facility, and investigate the possibility of using such a monitor in the machine protection system.
- Research Organization:
- BROOKHAVEN NATIONAL LABORATORY
- Sponsoring Organization:
- DOE/SC
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 15020019
- Report Number(s):
- BNL--74848-2005-CP; KB0202011
- Country of Publication:
- United States
- Language:
- English
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