Beam dynamics design for uranium drift tube linear accelerator

DOU Wei-Ping; HE Yuan; LU Yuan-Rong

doi:10.1088/1674-1137/38/7/077001

Chinese Physics C> 2014, Vol. 38> Issue(7) : 077001 DOI: 10.1088/1674-1137/38/7/077001

Beam dynamics design for uranium drift tube linear accelerator

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Abstract：
KONUS beam dynamics design of uranium DTL with LORASR code is presented. The ²³⁸U³⁴⁺ beam, whose current is 5.0 emA, is accelerated from injection energy of 0.35 MeV/u to output energy of 1.30 MeV/u by IH-DTL operated at 81.25 MHz in HIAF project at IMP of CAS. It achieves a transmission efficiency of 94.95% with a cavity length of 267.8 cm. The optimization aims are the reduction of emittance growth, beam loss and project costs. Because of the requirements of CW mode operation, the designed average acceleration gradient is about 2.48 MV/m. The maximum axial field is 10.2 MV/m,meanwhile the Kilpatrick breakdown field is 10.56 MV/m at 81.25 MHz.

References

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Kolmiets T E, Tretjakova S G, Yaramishev et al. The RFQ design software DESRFQ, ITEP/ANL Technical Note, 2005[2] Ratzinger U, Tiede R. Nucl. Instrum. Methods A, 1998, 415: 229-235[3] Ratzinger U. H-type Linac Structure. CERN Accelerator School, Lufthansa Training Center, Germany, 8-16 May[4] Ratzinger U, Tiede R. Laser and Particle Beams, 2002, 20: 447-450[5] Tiede R, Ratzinger U, Podlech H et al. KONUS Beam Dynamics Designs Using H-MODE Cavities. Proceedings of Hadrons Beam 2008, Nashville, Tennessee, USA: 2008[6] Ratzinger U. The IH-Structure and its Capability to Accelerate High Current Beams. Proceedings of the 1991 IEEE Particle Accelerator Conf., San Francisco, 1991, 567-571[7] Barth H, Dahl L, Hofmann S, Tinschert K et al. Unlac-upgrade Programme for the Heavy Element Research at GSI-SHIP. Proceedings of EPAC2006, Edinburgh, Scotland. 2006[8] Ratzinger U. High Current IH Structure. Proceedings of the EPAC 1994 Conference. London, 1994, 1: 264[9] Ratzinger U. The New High Current Ion Accelerator at GSI and Perspectives for Linac Design Based on H-Mode Cavities. Proceedings of the EPAC 2000 Conference. Vienna, Austria, 2000, 98-102[10] LU Yuan-Rong. Development of an IH-DTL Injector for the Heidelberg Cancer Therapy Project. Peking University, 2005. China[11] Ratzinger U et al. LORAS-A computer code to calculate the longitudinal and Radial beam dynamics of a drift tube accelerator. GSI internal report 0791[12] Ratzinger U. The New GSI Prestripper Linac for High Current Heavy Ion Beams. LINAC 96. Geneva, Switzerland, 1996, 288[13] Klabunde J. High Charge State Injector for GSI. Proceedings of the 1992 Linear Accelerator Conference. Ottawa, Ontario, Canada, 1992

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DOU Wei-Ping, HE Yuan and LU Yuan-Rong. Beam dynamics design for uranium drift tube linear accelerator[J]. Chinese Physics C, 2014, 38(7): 077001. doi: 10.1088/1674-1137/38/7/077001

DOU Wei-Ping, HE Yuan and LU Yuan-Rong. Beam dynamics design for uranium drift tube linear accelerator[J]. Chinese Physics C, 2014, 38(7): 077001. doi: 10.1088/1674-1137/38/7/077001 shu

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Received: 2013-08-05
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Beam dynamics design for uranium drift tube linear accelerator

Corresponding author: LU Yuan-Rong,

Received Date: 2013-08-05
Accepted Date: 1900-01-01
Available Online: 2014-07-05

Abstract: KONUS beam dynamics design of uranium DTL with LORASR code is presented. The ²³⁸U³⁴⁺ beam, whose current is 5.0 emA, is accelerated from injection energy of 0.35 MeV/u to output energy of 1.30 MeV/u by IH-DTL operated at 81.25 MHz in HIAF project at IMP of CAS. It achieves a transmission efficiency of 94.95% with a cavity length of 267.8 cm. The optimization aims are the reduction of emittance growth, beam loss and project costs. Because of the requirements of CW mode operation, the designed average acceleration gradient is about 2.48 MV/m. The maximum axial field is 10.2 MV/m,meanwhile the Kilpatrick breakdown field is 10.56 MV/m at 81.25 MHz.