High intensity cyclotrons for neutrino physics

Winklehner, Daniel; Bahng, Jungbae; Calabretta, L.; Calanna, A.; Chakrabarti, Alok; Conrad, J. M.; D’Agostino, Grazia; Dechoudhury, Siddhartha; Naik, Vaishali; Waites, Loyd; Weigel, Philip

doi:10.1016/j.nima.2018.07.036

Cited by 28 publications

(47 citation statements)

References 60 publications

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“…This RFQ is operated at the cyclotron RF frequency of 32.8 MHz. A proof-of-concept machine is currently being constructed to experimentally demonstrate the capability to inject and match the needed H + 2 beam current into the cyclotron: the RFQ-direct injection project (RFQ-DIP) [29,30]. For completeness, we briefly describe RFQ-DIP and central region in subsections 2.2 and 2.3, respectively, but it should be stressed that this work is ongoing and a separate publication on injection is forthcoming.…”

Section: Hardware Considerationsmentioning

confidence: 99%

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Order-of-magnitude beam current improvement in compact cyclotrons

et al. 2022

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There is great need for high intensity proton beams from compact particle accelerators in particle physics, medical isotope production, and materials- and energy-research. To address this need, we present, for the first time, a design for a compact isochronous cyclotron that will be able to deliver 10 mA of 60 MeV protons - an order of magnitude higher than on-market compact cyclotrons and a factor four higher than research machines. A key breakthrough is that vortex motion is incorporated in the design of a cyclotron, leading to clean extraction. Beam losses on the septa of the electrostatic extraction channels stay below 120~W (40\% below the required safety limit), while maintaining good beam quality. We present a set of highly accurate particle-in-cell simulations, and an uncertainty quantification of select beam input parameters using machine learning, showing the robustness of the design. This design can be utilized for beams for experiments in particle and nuclear physics, materials science and medical physics as well as for industrial applications.

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Section: Hardware Considerationsmentioning

confidence: 99%

“…RFQ-DIP [29,30] is the prototype of a novel injection system for compact cyclotrons. A cartoon of the device is shown in figure 4.…”

Section: The Rfq-direct Injection Projectmentioning

confidence: 99%

Order-of-magnitude beam current improvement in compact cyclotrons

et al. 2022

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“…This allows the bunches to grow slightly before the final focusing element, putting the focal point of the RFQ in the beginning of the cyclotron RF-cavity. Simulations predict over 97% transmission efficiency from the RFQ [4].…”

Section: Injection System and Cyclotronmentioning

confidence: 99%

“…To produce 10 mA of medium energy protons requires new technology. This is being developed as part of the Radio Frequency Quadrupole-Direct Injection Project (RFQ-DIP) and is discussed in detail in the article High intensity cyclotrons for neutrino physics [4]. The key changes are accelerating H + 2 to reduce space-charge effects in the cyclotron and axial injection using an RFQ to increase injection efficiency.…”

Section: Injection System and Cyclotronmentioning

confidence: 99%

IsoDAR

Smolsky¹

2019

Proceedings of the 20th International Workshop on Neutrinos — PoS(NuFACT2018)

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The Isotope Decay-At-Rest (IsoDAR) experiment is a short baseline neutrino experiment designed to measure neutrino oscillations by placing a high flux electron anti-neutrino source near a kiloton scale scintillator detector. A high current proton beam will be used to produce the large number of electron anti-neutrinos needed. Reaching the design goal of 10 mA of 60 MeV protons on target requires advancements in accelerator technology. This can be achieved using a high intensity H + 2 ion source followed by a radio-frequency quadrupole and spiral-inflector to axially inject ions into a compact cyclotron. Presented here are the results of our latest studies of this injection system.

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“…Components of the IsoDAR cyclotron injection system mounted on the central axis of the cyclotron magnet. Adapted fromWinklehner et al (2018).…”

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What is the potential impact of the IsoDAR cyclotron on radioisotope production: a review

Waites

Alonso

Barlow

et al. 2020

EJNMMI radiopharm. chem.

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The IsoDAR collaboration is developing a high-current cyclotron for a neutrino search experiment. Designed to deliver 10 mA of 60 MeV protons, the current and power of this cyclotron far exceed those of existing accelerators, opening new possibilities for the production of radiopharmaceutical isotopes, producing very highactivity samples in very short times. The cyclotron can also be easily configured to deliver ions other than protons including 1 mA of alpha particles at 240 MeV: this flexibility gives a broad reach into new areas of isotope production. We explain how IsoDAR overcomes the beam limits of commercial cyclotrons, and how it could represent the next step in isotope production rates.

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High intensity cyclotrons for neutrino physics

Cited by 28 publications

References 60 publications

Order-of-magnitude beam current improvement in compact cyclotrons

Order-of-magnitude beam current improvement in compact cyclotrons

IsoDAR

What is the potential impact of the IsoDAR cyclotron on radioisotope production: a review

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