DIPAC2011 - List of Keywords (permanent-magnet)

Paper	Title	Other Keywords	Page
MOPD45	Single-Shot Beam Characterization Device Based on the Pepper-Pot Principle	ion, emittance, electron, beam-transport	155
	S.X. Peng, J.E. Chen, Z.Y. Guo, P.N. Lu, Z.X. Yuan, J. Zhao PKU/IHIP, Beijing, People's Republic of China H.T. Ren Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
	Funding: National Nutural Science Foundation of China No.11075008 For the characterization of an ampere-scale microsecond single-pulse ion beam, a pepper-pot based beam profile measurement device was developed in PekingUniversity(PKU). It is a combination of Faraday cup technique with pepper-pot measurement facility. The direct Faraday cup is used to observe the total beam current and an array of pepper-pot diamond holes at the bottom of the Faraday cup is served to separate a large beam into several beamlets for beam distribution measurement. A Faraday array that locates 3.8 mm away from the pepper-pot screen is used to measure the transverse size of the beam. Two sets of permanent magnet poles that locate at the entrance of the Faraday cup and just before the Faraday array respectively are used to suppressing the second electrons produced by the interaction of the beam with target. In this paper we emphasize details of the experimental setup, the results of the measurements and we give an outlook on further developments on pepper-pot devices.

Paper

Title

Other Keywords

Page

MOPD45

Single-Shot Beam Characterization Device Based on the Pepper-Pot Principle

ion, emittance, electron, beam-transport

155

S.X. Peng, J.E. Chen, Z.Y. Guo, P.N. Lu, Z.X. Yuan, J. Zhao
PKU/IHIP, Beijing, People's Republic of China
H.T. Ren
Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China

Funding: National Nutural Science Foundation of China No.11075008
For the characterization of an ampere-scale microsecond single-pulse ion beam, a pepper-pot based beam profile measurement device was developed in PekingUniversity(PKU). It is a combination of Faraday cup technique with pepper-pot measurement facility. The direct Faraday cup is used to observe the total beam current and an array of pepper-pot diamond holes at the bottom of the Faraday cup is served to separate a large beam into several beamlets for beam distribution measurement. A Faraday array that locates 3.8 mm away from the pepper-pot screen is used to measure the transverse size of the beam. Two sets of permanent magnet poles that locate at the entrance of the Faraday cup and just before the Faraday array respectively are used to suppressing the second electrons produced by the interaction of the beam with target. In this paper we emphasize details of the experimental setup, the results of the measurements and we give an outlook on further developments on pepper-pot devices.