Recent progress in the superconducting RF Program at TRIUMF/ISAC

Laxdal, Robert; Fong, K.; Laverty, M.; Mitra, A.K.; Poirier, R.; Sekachev, I.; Zvyagintsev, Vladimir

doi:10.1016/j.physc.2006.03.096

Cited by 22 publications

(7 citation statements)

References 4 publications

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“…The first superconducting QWR for ion acceleration was proposed by Ben-Zvi and Brennan in 1983 [30]. Since then, QWRs have been employed successfully in many low β linacs [31][32][33][34][35]. In recent years, these cavities found new applications in high β accelerators, such as those described in [36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

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Design, prototyping, and testing of a compact superconducting double quarter wave crab cavity

Xiao

Alberty

Belomestnykh

et al. 2015

Phys. Rev. ST Accel. Beams

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We proposed a novel design for a compact superconducting crab cavity with a double quarter wave (DQWCC) shape. After fabrication and surface treatments, this niobium proof-of-principle cavity was tested cryogenically in a vertical cryostat. The cavity is extremely compact yet has a low frequency of 400 MHz, an essential property for service in the Large Hadron Collider luminosity upgrade. The cavity's electromagnetic properties are well suited for this demanding task. The demonstrated deflecting voltage of 4.6 MV is well above the required 3.34 MV for a crab cavity in the future High Luminosity LHC. In this paper, we present the design, prototyping, and results from testing the DQWCC.

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Section: Introductionmentioning

confidence: 99%

“…Since then, QWRs have been successfully employed in many low β linacs, as it is evident from Ref. [31][32][33][34][35]. In recent years, this cavities found new applications in high β accelerators, such as described in [36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Design, prototyping, and testing of a compact superconducting double quarter wave crab cavity

Xiao

Alberty

Belomestnykh

et al. 2015

Phys. Rev. ST Accel. Beams

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“…Besides, a high-energy linac is essential as a component of large-scale research facilities, such as spallation neutron sources or accelerator-driven systems. Thus the study and investigation of the design, operation and optimization of a cw-Linac, as well as progress in elaboration of the superconducting technology [3,4] is of high relevance. The design of the HIM/GSI cw-Linac HELIAC with its normal conducting injector linac comprising ECR-ion source, LEBT, RFQ and IH-DTL with an adjacent compact matching line is depicted in Fig.…”

Section: Introductionmentioning

confidence: 99%

Advanced basic layout of the HElmholtz LInear Accelerator for cw heavy ion beams at GSI

Barth,

Basten,

Burandt

et al. 2024

J. Phys.: Conf. Ser.

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The design and construction of continuous wave (cw) high intensity linacs is a crucial goal of worldwide accelerator technology development. The standalone sc heavy ion linac HELIAC (HElmholtz LInear ACcelerator) is a common project of GSI Helmholtz Centre for Heavy Ion Research and Helmholtz Institute Mainz (HIM) under key support of Goethe University Frankfurt (IAP). In 2017 the first section of the linac has been successfully commissioned and extensively tested with beam at GSI, featuring the capability of 216.816 MHz multi-gap Crossbar H-mode (CH) DTL-structures. At present, the first fully equipped cryomodule of the HELIAC is under construction. In addition, six further superconducting CH cavities are being procured. The HELIAC beam dynamics concept foresees a total of twelve CH-cavities in order to accelerate ions with a mass-to-charge ratio of 6 up to an energy of 7.5 MeV/u. In this paper, an advanced very compact and less complex layout is presented, where the same number of accelerating cavities can be accommodated in three instead of four cryomodules, thus also reducing the number of solenoids and rebunchers. In addition, the integration and linking of the HELIAC to the GSI accelerator UNILAC will be outlined.

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“…A highenergy linac is an integrated and essential part of several large scale research facilities, as spallation neutron sources or accelerator driven systems. Thus the study and investigation of the design, operation and optimization of a cw linac, as well as progress in elaboration of the superconducting technology [21] is of high relevance.…”

Section: Introductionmentioning

confidence: 99%

First heavy ion beam tests with a superconducting multigap CH cavity

Barth¹,

Aulenbacher

Basten

et al. 2018

Phys. Rev. Accel. Beams

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Very compact accelerating-focusing structures, as well as short focusing periods, high accelerating gradients and short drift spaces are strongly required for superconducting (sc) accelerator sections operating at low and medium energies for continuous wave (cw) heavy ion beams. To keep the GSI-super heavy element (SHE) program competitive on a high level and even beyond, a standalone sc cw linac (Helmholtz linear accelerator) in combination with the GSI high charge state injector (HLI), upgraded for cw operation, is envisaged. Recently the first linac section (financed by Helmholtz Institute Mainz (HIM) and GSI) as a demonstration of the capability of 217 MHz multigap crossbar H-mode structures (CH) has been commissioned and extensively tested with heavy ion beam from the HLI. The demonstrator setup reached acceleration of heavy ions up to the design beam energy. The required acceleration gain was achieved with heavy ion beams even above the design mass to charge ratio at high beam intensity and full beam transmission. This paper presents systematic beam measurements with varying rf amplitudes and phases of the CH cavity, as well as phase space measurements for heavy ion beams with different mass to charge ratio. The worldwide first and successful beam test with a superconducting multigap CH cavity is a milestone of the R&D work of HIM and GSI in collaboration with IAP in preparation of the HELIAC project and other cw-ion beam applications.

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Recent progress in the superconducting RF Program at TRIUMF/ISAC

Cited by 22 publications

References 4 publications

Design, prototyping, and testing of a compact superconducting double quarter wave crab cavity

Design, prototyping, and testing of a compact superconducting double quarter wave crab cavity

Advanced basic layout of the HElmholtz LInear Accelerator for cw heavy ion beams at GSI

First heavy ion beam tests with a superconducting multigap CH cavity

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