RF Accelerator Technology R&amp;D: Report of AF7-rf Topical Group to Snowmass 2021

Belomestnykh, S.

doi:10.2172/1886019

Cited by 3 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To realize this vision, we need to have a comprehensive program for these advanced microwave rf sources [78][79][80][81] with the end goal of an experimental demonstration of C-band modular multi-beam klystrons with efficiencies ≥ 65%, with periodic permanent magnet (PPM) focusing and high power. This should be followed by a demonstration of the combining mechanism; many methodologies are possible, but there is a new invention for combining with a two-dimensional Floquet network; a 16 tube combiner has already been demonstrated [23].…”

Section: Advanced Rf Source Research and Developmentmentioning

confidence: 99%

Status and future plans for C³ R&D

Nanni,

Breidenbach,

et al. 2023

J. Inst.

View full text Add to dashboard Cite

C3 is an opportunity to realize an e + e - collider for the study of the Higgs boson at √s = 250 GeV, with a well defined upgrade path to 550 GeV while staying on the same short facility footprint [2,3]. C3 is based on a fundamentally new approach to normal conducting linear accelerators that achieves both high gradient and high efficiency at relatively low cost. Given the advanced state of linear collider designs, the key system that requires technical maturation for C3 is the main linac. This paper presents the staged approach towards a facility to demonstrate C3 technology with both Direct (source and main linac) and Parallel (beam delivery, damping ring, ancillary component) R&D. The primary goal of the C3 Demonstration R&D Plan is to reduce technical and cost risk by building and operating the key components of C3 at an adequate scale. This R&D plan starts with the engineering design, and demonstration of one cryomodule and will culminate in the construction of a 3 cryomodule linac with pre-production prototypes. This R&D program would also demonstrate the linac rf fundamentals including achievable gradient and gradient stability over a full electron bunch train and breakdown rates. It will also investigate beam dynamics including energy spread, wakefields, and emittance growth. This work will be critical to confirm the suitability of the C3 beam parameters for the physics reach and detector performance in preparation for a Conceptual Design Report (CDR), as well as for follow-on technology development and industrialization. The C3 Demonstration R&D Plan will open up significant new scientific and technical opportunities based on development of high-gradient and high-efficiency accelerator technology. It will push this technology to operate both at the GeV scale and mature the technology to be reliable and provide high-brightness electron beams. The timeline for progressing with C3 technology development will be governed by practical limitations on both the technical progress and resource availability. It consists of four stages: Stage 0) Ongoing fundamental R&D on structure prototypes, damping and vibrations. Stage 1) Advancing the engineering maturity of the design and developing start-to-end simulations including space-charge and wakefield effects. This stage will include testing of strucutres operating at cryogenic temperatures. Beam tests would be performed with high beam current to test full beam loading. Stage 2) Production and testing of the first cryomodule at cryogenic temperatures. This would provide sufficient experimental data to compile a CDR and it is anticipated for Stage 2 to last 3 years and to culminate with the transport of photo-electrons through the first cryomodule. Stage 3) Updates to the engineering design of the cryomodules, production of the second and third cryomodule and their installation. Lower charge and lower emittance beams will be used to investigate emittance growth. The successful full demonstration of the 3 cryomodules to deliver up to a 3 GeV beam and achieve the C3five gradient will allow a comprehensive and robust evaluation of the technical design of C3 as well as mitigate technical, schedule, and cost risks required to proceed with a Technical Design Report (TDR).

show abstract

Section: Advanced Rf Source Research and Developmentmentioning

confidence: 99%

Status and future plans for C³ R&D

Nanni,

Breidenbach,

et al. 2023

J. Inst.

View full text Add to dashboard Cite

show abstract

“…7.9.2.1 AF7 ("Accelerator Technology -RF"): main findings and recommendations The GARD roadmap continues to serve as community-developed guidance for RF technology R&D, but based on recent progress it would benefit from some mid-course corrections. Based on the discussions and submitted White Papers, the following are key directions that should be pursued during the next decade [66]:…”

mentioning

confidence: 99%

Accelerator Frontier

Gourlay¹

2022

View full text Add to dashboard Cite

For over half a century, high-energy accelerators have been a major enabling technology for particle and nuclear physics research as well as sources of X-rays for photon science research in material science, chemistry and biology. Particle accelerators for energy and intensity frontier research in high energy physics (HEP) continuously drive the accelerator community to invent ways to increase the energy and improve the performance of accelerators, reduce their cost, and make them more power efficient. Despite these past efforts, the increasing size, cost and timescale required for modern and future accelerator-based HEP projects arguably distinguish them as the most challenging scientific research endeavors. In the meantime, the international accelerator community has demonstrated imagination and creativity in developing a plethora of future accelerator ideas and proposals.Major developments since the last Snowmass/HEPAP P5 strategic planning exercise in 2013-2014 include start of the PIP-II proton linac; construction for the LBNF/DUNE neutrino program in the US; emergence of the FCC-ee/CEPC projects for Higgs/EW physics research at CERN and in China, respectively; a significant reduction of activity related to linear collider projects (ILC in Japan and CLIC at CERN); and paradoxically, the end of the Muon Accelerator Program in the US and creation of the International Muon Collider Collaboration (IMCC) in Europe. The last decade saw several notable planning advancements, including the US DOE GARD Roadmaps, European Strategy for Particle Physics and the Accelerator R&D Roadmap, EuPRAXIA, etc.In addition, since the last Snowmass meeting that took place in 2013 was shortly after the confirmation of the Higgs, the goals for the Energy Frontier have changed as a result of the LHC measurements. While a Higgs/EW factory at 250 to 360 GeV is still the highest priority for the next large accelerator project, the motivation for a TeV or few TeV e + e − collider has diminished. Instead, the community is focused on a 10+ TeV (parton c.m.e) discovery collider that would follow the Higgs/EW Factory. This is an important change that will refocus some of the accelerator R&D programs.The technical maturity of proposed facilities ranges from shovel-ready to those that are still largely conceptual. Over 100 contributed papers have been submitted to the Accelerator Frontier of the US particle physics decadal community planning exercise, Snowmass'2021. These papers cover a broad spectrum of topics: beam physics and accelerator education, accelerators for neutrinos, colliders for Electroweak/Higgs studies and multi-TeV energies, accelerators for Physics Beyond Colliders and rare processes, advanced accelerator concepts, and accelerator technology for Radio Frequency cavities (RF), magnets, targets, and sources.

show abstract

“…Community Planning Exercise: Snowmass 2021 7.9 Accelerator technologies and R&D 33 7.9.2.1 AF7 ("Accelerator Technology -RF"): main findings and recommendations The GARD roadmap continues to serve as community-developed guidance for RF technology R&D, but based on recent progress it would benefit from some mid-course corrections. Based on the discussions and submitted White Papers, the following are key directions that should be pursued during the next decade [66]:…”

mentioning

confidence: 99%

“Snowmass’21” Accelerator Frontier

Gourlay¹,

Raumenheimer²,

Shiltsev

2021

“Snowmass’21” Accelerator Frontier

View full text Add to dashboard Cite

Snowmass"is the form of organization of regular, every 6 to 8 years, discussions among the entire particle physics community to develop a scientific vision for the future of particle physics in the U.S. and its international partners. The Snowmass'21 {\it Accelerator Frontier} activities include discussions on high-energy hadron and lepton colliders, high-intensity beams for neutrino research and for the "Physics Beyond Colliders", accelerator technologies, science, education and outreach as well as the progress of core accelerator technology, including RF, magnets, targets and sources.

show abstract

RF Accelerator Technology R&D: Report of AF7-rf Topical Group to Snowmass 2021

Cited by 3 publications

References 26 publications

Status and future plans for C³ R&D

Status and future plans for C³ R&D

Accelerator Frontier

“Snowmass’21” Accelerator Frontier

Contact Info

Product

Resources

About

RF Accelerator Technology R&D: Report of AF7-rf Topical Group to Snowmass 2021

Cited by 3 publications

References 26 publications

Status and future plans for C3 R&D

Status and future plans for C3 R&D

Accelerator Frontier

“Snowmass’21” Accelerator Frontier

Contact Info

Product

Resources

About

Status and future plans for C³ R&D

Status and future plans for C³ R&D