| NUCLEAR PHYSICS |
|
|
|
|
Radio-Frequency Power Test of a Four-Rod RFQ Accelerator for PKUNIFTY |
| ZENG Hong-Jin1,2, LIU Ge1, LU Yuan-Rong1**, CHEN Wei, ZHOU Quan-Feng1, ZHU Kun1, XIA Wen-Long1, SHI Ben-Liang1, GAO Shu-Li1, YAN Xue-Qing1, GUO Zhi-Yu1, CHEN Jia-Er1 |
1State Key Laboratory of Nuclear Physics and Technology & School of Physics, Peking University, Beijing 100871
2Northwest Institute of Nuclear Technology, Urumchi 841700 |
|
| Cite this article: |
|
ZENG Hong-Jin, LIU Ge, LU Yuan-Rong et al 2012 Chin. Phys. Lett. 29 062901 |
|
|
|
|
Abstract A four-rod radio frequency quadruple (RFQ) accelerator is designed, manufactured, installed and commissioned for the Peking University Neutron Imaging Facility (PKUNIFTY). This 2699.6-mm-long RFQ accelerator with the mean aperture radius of 3.88 mm is operating at 201.5 MHz in pulse mode. An inter-electrode voltage of 70 kV is needed to accelerate the injected 50 keV 40 mA D+ ions up to 2 MeV. We present the rf system, high rf power feeder design, lower rf measurements and higher rf power test. Especially, the rf commissioning was carried out with rf power up to ～280 kW and duty factor of 4%. The measured x-ray spectrum shows that the rf inter-electrode voltage reaches 70.7 kV. It is found that the specific shunt impedance of the RFQ cavity reaches 52.7 kΩ⋅m.
|
| Keywords:
29.20.Ej
29.27.Bd
29.17.+W
|
|
|
Received: 12 March 2012
Published: 31 May 2012
|
|
|
|
|
|
|
|
| [1] Zou Y B et al 2011 Nucl. Instrum. Methods A 651 62[2] Guo Z Y et al 2006 Proc. LINAC06 (Oak Ridge, TN, USA, 21–25 August 2006) p 673[3] Zhang C et al 2004 Nucl. Instrum. Methods A 521 326[4] Yan X Q et al 2010 Nucl. Instrum. Methods A[5] Zhu K et al 2005 Chin. Phys. C 29 512 (in Chinese)[6] Lu Y R et al 2011 Chin. Phys. Lett. 28 072901[7] Lu Y R et al 2006 Proc. LINAC06 (Oak Ridge, TN, USA, 21–25 August 2006) p 670[8] Wang Z et al 2009 Nucl. Instrum. Methods A 607 522[9] Chen J E et al 2009 Chin. Phys. C 33 (Suppl.II) 56[10] Zhou Q F et al 2011 Chin. Phys. C 35 1042[11] Nie Y C et al 2010 Chin. Phys. Lett. 27 112901[12] Kang M L et al 2010 High Power Laser Part. Beams 22 411 (in Chinese)[13] Pandey H K et al 2011 Proc. InPAC11 (New Delhi, India, 15–18 February 2011) p 264[14] Ostroumov P N et al 2006 Proc. LINAC06 (Oak Ridge, TN, USA, 21–25 August 2006) p 767[15] Lyles J T M et al 2004 Proc. EPAC04 (Lucerne, Switzerland, 5–9 July 2004) p 1078 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
