Effects of bunch state on measurement of beam emittance and energy

An Chaofan; Xie Xiucui; Pu Yuehu

doi:10.11884/HPLPB202133.210302

Volume 33 Issue 11

Nov. 2021

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An Chaofan, Xie Xiucui, Pu Yuehu. Effects of bunch state on measurement of beam emittance and energy[J]. High Power Laser and Particle Beams, 2021, 33: 114001. doi: 10.11884/HPLPB202133.210302

Citation:

An Chaofan, Xie Xiucui, Pu Yuehu. Effects of bunch state on measurement of beam emittance and energy[J]. High Power Laser and Particle Beams, 2021, 33: 114001. doi: 10.11884/HPLPB202133.210302

An Chaofan, Xie Xiucui, Pu Yuehu. Effects of bunch state on measurement of beam emittance and energy[J]. High Power Laser and Particle Beams, 2021, 33: 114001. doi: 10.11884/HPLPB202133.210302

Citation:

An Chaofan, Xie Xiucui, Pu Yuehu. Effects of bunch state on measurement of beam emittance and energy[J]. High Power Laser and Particle Beams, 2021, 33: 114001. doi: 10.11884/HPLPB202133.210302

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Effects of bunch state on measurement of beam emittance and energy

doi: 10.11884/HPLPB202133.210302

An Chaofan^{1, 2
,},
Xie Xiucui^{1
,
,},
Pu Yuehu^{3, 4}

1.
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Shanghai APACTRON Particle Equipment Co, Ltd, Shanghai 201800, China
4.
Shanghai Institute of Advanced Studies, Chinese Academy of Sciences , Shanghai 201210, China

Received Date: 2021-07-20
Rev Recd Date: 2021-10-20

Available Online: 2021-11-01

Publish Date: 2021-11-15

Abstract

Abstract

To verify whether the parameters of the domestic proton injector meet the requirements, a beam diagnostic system was designed to measure the current, emittance, energy and energy spread of the domestic proton linear injector beam. This beam diagnostic system has the main functions of measuring the emittance by variable focus method and measuring beam energy and energy spread by analyzing magnet. The beam transport line design software Tracewin (version 2.11.4.1) was used to design the physical system beam line, and the accuracy of the beam diagnostic system to measure the emittance and energy of the proton beam was simulated and calculated. Since the beam accelerated by RFQ-(APF)DTL is a “trailing” non-ideal bunch , it is necessary to analyze the influence of the non-ideal bunch on the emittance and energy measurement of the beam diagnostic system. The analysis of the simulation calculation results shows that compared with the ideal bunch, the non-ideal bunch has greater impact on emittance measurement accuracy and smaller impact on energy measurement accuracy of the beam diagnostic system.
- proton linear injector,
- ideal particle bunch,
- non-ideal particle bunch,
- emittance measurement,
- energy measurement

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References(19)

References

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