Multipacting simulation and analysis of a taper quarter wave cavity by using Analyst-PT3P

ZHANG Cong; HE Yuan; ZHAO Hong-Wei; ZHANG Sheng-Hu

doi:10.1088/1674-1137/36/4/012

Chinese Physics C> 2012, Vol. 36> Issue(4) : 362-366 DOI: 10.1088/1674-1137/36/4/012

Multipacting simulation and analysis of a taper quarter wave cavity by using Analyst-PT3P

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Abstract：
Since the tapered quarter wave resonator (QWR) cavity is proven to have a much lower peak surface magnetic field in the short plate and a lower peak surface electric field near the beam tube compared with the straight outer conductor QWR, it has been recommended for the separated sector cyclotron linac injector system in the heavy ion research facility in Lanzhou. This paper is focused on the multipacting (MP) analysis for the tapered QWR with a frequency of 80.5 MHz and beta of 0.085. Using the Analyst program, MP bands can be simulated and analyzed with the Particle Tracking module to identify potential problems in the cavity design. This paper will present the simulation results of MP for the tapered QWR cavity.

References

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Hansan Padamsee, Jens Knobloch, Tom Hays. RF Superconductivity for Accelerators. New York: A Wiley-Interscience Publication, 1998.1792 Ostroumov P N, Fuerst J D, Kelly M P, Mustapha B, Shepard K W, XU J. A New ATLAS E ciency and Intensity Upgrade Project. In: 14th International Conference on RF Superconductivity. Berlin. 20093 ANALYST, AWR corporation, El Segundo CA, www.awrcorp.com/analyst

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ZHANG Cong, HE Yuan, ZHAO Hong-Wei and ZHANG Sheng-Hu. Multipacting simulation and analysis of a taper quarter wave cavity by using Analyst-PT3P[J]. Chinese Physics C, 2012, 36(4): 362-366. doi: 10.1088/1674-1137/36/4/012

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Received: 2011-05-31
Revised: 2011-07-25

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沈阳化工大学材料科学与工程学院沈阳 110142

Multipacting simulation and analysis of a taper quarter wave cavity by using Analyst-PT3P

Received Date: 2011-05-31
Accepted Date: 2011-07-25
Available Online: 2012-04-05

Abstract: Since the tapered quarter wave resonator (QWR) cavity is proven to have a much lower peak surface magnetic field in the short plate and a lower peak surface electric field near the beam tube compared with the straight outer conductor QWR, it has been recommended for the separated sector cyclotron linac injector system in the heavy ion research facility in Lanzhou. This paper is focused on the multipacting (MP) analysis for the tapered QWR with a frequency of 80.5 MHz and beta of 0.085. Using the Analyst program, MP bands can be simulated and analyzed with the Particle Tracking module to identify potential problems in the cavity design. This paper will present the simulation results of MP for the tapered QWR cavity.