Operation of normal-conducting rf cavities in multi-Tesla magnetic fields for muon ionization cooling: A feasibility demonstration

Bowring, D.; Bross, A.; Lane, Peter; Леонова, М. А.; Moretti, A.; Neuffer, D.; Pasquinelli, Ralph J.; Peterson, D.; Popovic, M.; Stratakis, Diktys; Yonehara, K.; Kochemirovskiy, Alexey; Torun, Y.; Adolphsen, C.; Ge, Lixin; Haase, Andrew; Li, Z.; Martin, David W.; Chung, М.; Li, D.; Luo, Tianhuan; Freemire, Ben; Palmer, M.

doi:10.1103/physrevaccelbeams.23.072001

Cited by 13 publications

(11 citation statements)

References 22 publications

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“…The first two techniques have been experimentally verified in MUCOOL with a field of about 3 T (limited by the solenoid). They yielded a gradient of 50 MV/m in a beryllium cavity under vacuum and 65 MV/m in a molybdenum cavity with hydrogen [8], demonstrating no degradation in achievable field in the presence of an applied magnetic field.…”

Section: Operation Of Rf Cavities In a Magnetic Fieldmentioning

confidence: 99%

“…An important outcome of MAP was that progress in each of the above areas was sufficient to suggest that there exists a viable path forward. The test program at Fermilab's MuCool test area demonstrated operation of gas-filled and vacuum pillbox cavities with up to 50 MV/m gradients in strong magnetic fields [5,8]; a 6D cooling lattice was designed that incorporated reasonable physical assumptions [14]; a final cooling channel design, which implemented the constraint of a 30 T maximum solenoid field, came within a factor of two of meeting the transverse emittance goal for a high energy collider [10]; and while further R&D is required, fast-ramping magnet concepts [3] do exist that could deliver TeV muon beams. Since the end of the MAP studies a number of technologies have developed, which make the muon collider a promising avenue of study.…”

Section: Required Randdmentioning

confidence: 99%

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A Muon Collider Facility for Physics Discovery

Stratakis¹,

N.²,

Palmer³

et al. 2022

Preprint

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This is one of the six reports submitted to Snowmass by the International Muon Collider Collaboration. The Indico subscription page: https://indico.cern.ch/event/1130036/ contains the link to the reports and gives the possibility to subscribe to the papers.The policy for signatures is that, for each individual report, you can subscribe as "Author" or as "Signatory", defined as follows:-"Author" indicates that you did contribute to the results documented in the report in any form, including e.g. by participating to the discussions of the community meeting, sending comments on the drafts, etc, or that you plan to contribute to the future work. The "Authors" will appear as such on arXiv. -"Signatory means that you express support to the Collaboration effort and endorse the Collaboration plans. The "Signatories" list will be reported in the text only.

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Section: Operation Of Rf Cavities In a Magnetic Fieldmentioning

confidence: 99%

Section: Required Randdmentioning

confidence: 99%

A Muon Collider Facility for Physics Discovery

Stratakis¹,

N.²,

Palmer³

et al. 2022

Preprint

Self Cite

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“…• NC RF in 3 T Field: The experiment conducted at Fermilab MTA facility [28] demonstrated stable high-vacuum, normal-conducting RF cavity operation at gradients of 50 MV/m in an external magnetic field of 3 T, through the use of beryllium cavity elements. A highpressure Hydrogen gas filled RF (HPRF) cavity was also demonstrated with intense beams in a multi-Tesla solenoid field at MTA.…”

Section: Recent Technology Advancementsmentioning

confidence: 99%

Future Collider Options for the US

Bhat¹,

S.²,

Ambrosio³

et al. 2022

Preprint

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The United States has a rich history in high energy particle accelerators and collidersboth lepton and hadron machines, which have enabled several major discoveries in elementary particle physics. To ensure continued progress in the field, U.S. leadership as a key partner in building next generation collider facilities abroad is essential; also critically important is the exploring of options to host a future collider in the U.S. The "Snowmass" study and the subsequent Particle Physics Project Prioritization Panel (P5) process provide the timely opportunity to develop strategies for both. What we do now will shape the future of our field and whether the U.S. will remain a world leader in these areas. In this white paper, we briefly discuss the US engagement in proposed collider projects abroad and describe future collider options for the U.S. We also call for initiating an integrated R&D program for future colliders.

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“…Another important factor to increase the capture section efficiency, is the possibility to provide high solenoidal fields around the first accelerating structures beyond the 0.5 T, while the adiabatic damping acts, at higher energy, as a primary emittance damper. In this context, strong synergies can be seen with the Muon Collider Program (MAP) on the ionization cooling section, requiring high-gradient cavities immersed in high solenoidal fields [111,112].…”

Section: Capture Section Technologymentioning

confidence: 99%

Positron sources: from conventional to advanced accelerator concepts-based colliders

Chaikovska,

Chehab,

Kubytskyi

et al. 2022

Preprint

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A: Positron sources are the key elements for the future and current lepton collider projects such as ILC, CLIC, SuperKEKB, FCC-ee, Muon Collider/LEMMA, etc., introducing challenging critical requirements for high intensity and low emittance beams in order to achieve high luminosity. In fact, due to their large production emittance and constraints given by the target thermal load, the main collider parameters such as the peak and average current, the emittances, the damping time, the repetition frequency and consequently the luminosity are determined by the positron beam characteristics. In this paper, the conventional positron sources and their main properties are explored for giving an indication to the challenges that apply during the design of the advanced accelerator concepts. The photon-driven positron sources as the novel approach proposed, primarily for the future linear colliders, are described highlighting their variety and problematic.

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Operation of normal-conducting rf cavities in multi-Tesla magnetic fields for muon ionization cooling: A feasibility demonstration

Cited by 13 publications

References 22 publications

A Muon Collider Facility for Physics Discovery

A Muon Collider Facility for Physics Discovery

Future Collider Options for the US

Positron sources: from conventional to advanced accelerator concepts-based colliders

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