PAC2013 - List of Authors (Gaowei, M.)

Paper	Title	Page
THPAC34	Diamond Amplifier Design and Preliminary Test Results	1211
	T. Xin, S.A. Belomestnykh, I. Ben-Zvi Stony Brook University, Stony Brook, USA S.A. Belomestnykh, I. Ben-Zvi, T. Rao, J. Skaritka, J. Smedley, E. Wang, Q. Wu BNL, Upton, Long Island, New York, USA M. Gaowei, E.M. Muller SBU, Stony Brook, New York, USA
	Funding: Work is supported at BNL by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. DOE. The work at Stony Brook is supported by the US DOE under grant DE-SC0005713. Diamond as a large energy gap material can be easily made into a negative electron affinity (NEA) device. Using a few keV primary electrons as input and a few kV bias, the NEA diamond will emit cold electrons into vacuum with a large gain. We had tested and reported the performance of the diamond amplifier in our DC system somewhere else. The best amplification achieved so far was above 170. Next step of the experiment is to test the diamond amplifier in the 112 MHz superconducting RF electron gun. In this report we describe the design and simulations of the diamond amplifier to be tested in our SRF gun, show the finished amplifier containing the DC primary gun and light optics. We also provide preliminary test results of the laser and electron beam transport.

Paper

Title

Page

Diamond Amplifier Design and Preliminary Test Results

1211

T. Xin, S.A. Belomestnykh, I. Ben-Zvi
Stony Brook University, Stony Brook, USA
S.A. Belomestnykh, I. Ben-Zvi, T. Rao, J. Skaritka, J. Smedley, E. Wang, Q. Wu
BNL, Upton, Long Island, New York, USA
M. Gaowei, E.M. Muller
SBU, Stony Brook, New York, USA

Funding: Work is supported at BNL by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. DOE. The work at Stony Brook is supported by the US DOE under grant DE-SC0005713.
Diamond as a large energy gap material can be easily made into a negative electron affinity (NEA) device. Using a few keV primary electrons as input and a few kV bias, the NEA diamond will emit cold electrons into vacuum with a large gain. We had tested and reported the performance of the diamond amplifier in our DC system somewhere else. The best amplification achieved so far was above 170. Next step of the experiment is to test the diamond amplifier in the 112 MHz superconducting RF electron gun. In this report we describe the design and simulations of the diamond amplifier to be tested in our SRF gun, show the finished amplifier containing the DC primary gun and light optics. We also provide preliminary test results of the laser and electron beam transport.