ECRIS2012 - List of Keywords (proton)

Paper	Title	Other Keywords	Page
TUPP13	Development of Intense Proton ECR Ion Sources at IMP	ion, extraction, ECR, plasma	64
	Z.M. Zhang, Z.W. Liu, H.Y. Ma, L.T. Sun, Q. Wu, Y. Yang, W.H. Zhang, X.Z. Zhang, H.W. Zhao IMP, Lanzhou, People's Republic of China
	Since 1997, there have been two ECR ion sources for producing intense proton beam developed at Institute of Modern Physics (IMP). In 1999, a high current 2.45 GHz ECR proton source for Lanzhou university neutron generator, was constructed and tested at IMP. A mixed ion (H¹⁺ + H²⁺ + H³⁺) beam current of 110 mA with CW mode was delivered from a single aperture of 6mm diameter with microwave power of 600 W at the extraction voltage of 22 kV. Recently a new pulsed proton source has been designed and built at IMP for the CPHS (Compact Pulse Hadron Source) facility in Tsinghua University. Now this source is under commissioning for 60 mA proton beam with 50 keV energy. The long time running stability and beam emittance have been tested and the results are well up to the requirements of CPHS. In this paper, after a short review of the proton ion source for Lanzhou University, the design and test results of the CPHS proton source as well as the LEBT will be presented. The design of the proton ion source and the LEBT for the Chinese ADS project will also be discussed in the contents.

WEXO04	Proton Beams Formation from Dense Plasma of ECR Discharge sustained by 37.5 GHz Gyrotron Radiation	extraction, ion, plasma, emittance	85
	V. Skalyga, I. Izotov, S. Razin, V. Sidorov, V. Zorin IAP/RAS, Nizhny Novgorod, Russia T. Kalvas, H. A. Koivisto, O.A. Tarvainen JYFL, Jyväskylä, Finland
	Funding: Work was performed in frame of realization of federal targeted program "Scientific and pedagogical labor force for an innovative Russia" for 2009-2013 yy. Operation of modern high power accelerators often requires production of intense beams of hydrogen ions. Newer facilities aiming at outperforming the previous generation accelerators are usually designed for higher beam currents. Meeting the demand for hydrogen ion beams with higher intensity and low transverse emittance is, therefore, becoming increasingly difficult problem. Present work is devoted to experimental investigation of proton beams production from dense plasma (Ne>10¹³ cm^-3) of ECR discharge sustained by 37.5 GHz, 100 kW gyrotron radiation at SMIS 37 facility at IAP RAS. Different extraction system configurations were used. It was demonstrated that ultra bright proton beam with 4.5 mA current and 0.1 π·mm·mrad normalized emittance (brightness=45 A/(π·mm·mrad)²) can be formed with 1-hole (1 mm in diameter) extraction. For production of high current beams a 13-hole extractor was used. 200 mA and 1.1 π·mm·mrad normalized emittance proton beam was obtained. A possibility of further beam parameters enhancement by developing of extraction system and its power supply is discussed. It was shown that in generated proton beams H²⁺ component was less than 6%.
	Slides WEXO04 [2.512 MB]

WEPP14	An Advanced Injection System of Light Ions (AISLI) for Dielectric Wall Accelerator	ion, ion-source, emittance, ECR	136
	S.X. Peng, J. Chen, J.E. Chen, Z.Y. Guo, P.N. Lu, H.T. Ren, Y. Xu, J. Zhao PKU, Beijing, People's Republic of China
	The dielectric wall accelerator (DWA) is a kind of acceleration system that has the ability to accelerate any charge to mass ratio particle with high electric field gradients up to 400 MV/m and very compact dimension, for example d 30 mm x 50 mm. To demonstrate the high gradient tiny acceleration system, a comparable 50 mA/40 keV pulsed H⁺ converge beam injector is required. Based on the experimental results obtained on the test bench, a six electrodes injector was developed at Peking University (PKU). In this paper we will describe the preliminary experimental results as well as the details of the new compact injector which named as An Advanced Injector System of Light Ions (AISLI).
	Poster WEPP14 [3.963 MB]

Paper

Title

Other Keywords

Page

TUPP13

Development of Intense Proton ECR Ion Sources at IMP

ion, extraction, ECR, plasma

64

Z.M. Zhang, Z.W. Liu, H.Y. Ma, L.T. Sun, Q. Wu, Y. Yang, W.H. Zhang, X.Z. Zhang, H.W. Zhao
IMP, Lanzhou, People's Republic of China

Since 1997, there have been two ECR ion sources for producing intense proton beam developed at Institute of Modern Physics (IMP). In 1999, a high current 2.45 GHz ECR proton source for Lanzhou university neutron generator, was constructed and tested at IMP. A mixed ion (H¹⁺ + H²⁺ + H³⁺) beam current of 110 mA with CW mode was delivered from a single aperture of 6mm diameter with microwave power of 600 W at the extraction voltage of 22 kV. Recently a new pulsed proton source has been designed and built at IMP for the CPHS (Compact Pulse Hadron Source) facility in Tsinghua University. Now this source is under commissioning for 60 mA proton beam with 50 keV energy. The long time running stability and beam emittance have been tested and the results are well up to the requirements of CPHS. In this paper, after a short review of the proton ion source for Lanzhou University, the design and test results of the CPHS proton source as well as the LEBT will be presented. The design of the proton ion source and the LEBT for the Chinese ADS project will also be discussed in the contents.

WEXO04

Proton Beams Formation from Dense Plasma of ECR Discharge sustained by 37.5 GHz Gyrotron Radiation

extraction, ion, plasma, emittance

85

V. Skalyga, I. Izotov, S. Razin, V. Sidorov, V. Zorin
IAP/RAS, Nizhny Novgorod, Russia
T. Kalvas, H. A. Koivisto, O.A. Tarvainen
JYFL, Jyväskylä, Finland

Funding: Work was performed in frame of realization of federal targeted program "Scientific and pedagogical labor force for an innovative Russia" for 2009-2013 yy.
Operation of modern high power accelerators often requires production of intense beams of hydrogen ions. Newer facilities aiming at outperforming the previous generation accelerators are usually designed for higher beam currents. Meeting the demand for hydrogen ion beams with higher intensity and low transverse emittance is, therefore, becoming increasingly difficult problem. Present work is devoted to experimental investigation of proton beams production from dense plasma (Ne>10¹³ cm^-3) of ECR discharge sustained by 37.5 GHz, 100 kW gyrotron radiation at SMIS 37 facility at IAP RAS. Different extraction system configurations were used. It was demonstrated that ultra bright proton beam with 4.5 mA current and 0.1 π·mm·mrad normalized emittance (brightness=45 A/(π·mm·mrad)²) can be formed with 1-hole (1 mm in diameter) extraction. For production of high current beams a 13-hole extractor was used. 200 mA and 1.1 π·mm·mrad normalized emittance proton beam was obtained. A possibility of further beam parameters enhancement by developing of extraction system and its power supply is discussed. It was shown that in generated proton beams H²⁺ component was less than 6%.

Slides WEXO04 [2.512 MB]

WEPP14

An Advanced Injection System of Light Ions (AISLI) for Dielectric Wall Accelerator

ion, ion-source, emittance, ECR

136

S.X. Peng, J. Chen, J.E. Chen, Z.Y. Guo, P.N. Lu, H.T. Ren, Y. Xu, J. Zhao
PKU, Beijing, People's Republic of China

The dielectric wall accelerator (DWA) is a kind of acceleration system that has the ability to accelerate any charge to mass ratio particle with high electric field gradients up to 400 MV/m and very compact dimension, for example d 30 mm x 50 mm. To demonstrate the high gradient tiny acceleration system, a comparable 50 mA/40 keV pulsed H⁺ converge beam injector is required. Based on the experimental results obtained on the test bench, a six electrodes injector was developed at Peking University (PKU). In this paper we will describe the preliminary experimental results as well as the details of the new compact injector which named as An Advanced Injector System of Light Ions (AISLI).

Poster WEPP14 [3.963 MB]