Dee Voltage Calibration of 31.02 MHz Cyclotron Resonance Cavity

JIN Peng; WANG Xianwu; TIAN Ruixia; XU Zhe; FENG Yong; LAN Tao

doi:10.11804/NuclPhysRev.32.03.301

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Article Navigation > Nuclear Physics Review > 2015 > 32(3): 301-305

JIN Peng, WANG Xianwu, TIAN Ruixia, XU Zhe, FENG Yong, LAN Tao. Dee Voltage Calibration of 31.02 MHz Cyclotron Resonance Cavity[J]. Nuclear Physics Review, 2015, 32(3): 301-305. doi: 10.11804/NuclPhysRev.32.03.301

Citation:

JIN Peng, WANG Xianwu, TIAN Ruixia, XU Zhe, FENG Yong, LAN Tao. Dee Voltage Calibration of 31.02 MHz Cyclotron Resonance Cavity[J]. Nuclear Physics Review, 2015, 32(3): 301-305. doi: 10.11804/NuclPhysRev.32.03.301

Dee Voltage Calibration of 31.02 MHz Cyclotron Resonance Cavity

doi: 10.11804/NuclPhysRev.32.03.301

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-09-20

Abstract

The 31.02 MHz cyclotron RF system of Heavy Ion Medical Machine (HIMM) in IMP(Institute of Modern Physics, Chinese Academy of Sciences) has completed the design and commssioning，and now has already been put into operation. Its peak voltage requires 70 kV, but the precise calculation of the Dee voltage is still a difficulty problem, we can get the value Rp/Q0 of the cavity by CST simulation, and then combining the actual input power for cavity to calculate the real Dee voltage. In order to verify its accuracy, we use the bremsstrahlung method to test the cavity voltage under the condition of same input power. The error between test results and calculation is less than 0.6%.
- cyclotron,
- quality factor,
- dee voltage,
- shunt impedance,
- bremsstrahlung method
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Dee Voltage Calibration of 31.02 MHz Cyclotron Resonance Cavity

doi: 10.11804/NuclPhysRev.32.03.301

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-09-20

Key words:

Abstract: The 31.02 MHz cyclotron RF system of Heavy Ion Medical Machine (HIMM) in IMP(Institute of Modern Physics, Chinese Academy of Sciences) has completed the design and commssioning，and now has already been put into operation. Its peak voltage requires 70 kV, but the precise calculation of the Dee voltage is still a difficulty problem, we can get the value Rp/Q0 of the cavity by CST simulation, and then combining the actual input power for cavity to calculate the real Dee voltage. In order to verify its accuracy, we use the bremsstrahlung method to test the cavity voltage under the condition of same input power. The error between test results and calculation is less than 0.6%.

Citation: