Paper | Title | Other Keywords | Page |
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MOPOJO04 | LightHouse - A Superconducting LINAC for Producing Medical Isotopes | electron, cathode, radiation, gun | 35 |
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The medical isoptope Mo-99 is used for diagnosing several 10 million patients every year. Up to now it is produced from enriched Uranium using high-flux neutron reactors. The Institute for Radio Elements (IRE), Belgium has ordered the design of a high-power superconducting linac for producing Mo-99 without use of nuclear fission as part of their SMART project. The LightHouse accelerator consists of a photo gun and 7 superconducting RF modules"*", a beam splitter and target illumination optics. It will deliver two electron beam of 75MeV and 1.5MW each. Photocathodes are prepared and transfered in-situ. We report on the design principles and the Beam Test Facility operating since April 2022.
*Based on Cornell CBeta design |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOJO04 | ||
About • | Received ※ 19 August 2022 — Revised ※ 24 August 2022 — Accepted ※ 26 August 2022 — Issue date ※ 01 September 2022 | ||
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MOPOJO14 | New X-Band and S-Band Linear Accelerators at Varex Imaging | linac, gun, GUI, electron | 56 |
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We have designed, built, and high power tested advanced linear accelerators equipped with our new 3 MeV X-Band Accelerator Beam Centerline ABC-3-X-T-X and a Reduced Spot (RS) S-Band ABC-7ER-S-T-RS-X with broad 3 MeV to 8 MeV energy regulation, which demonstrated excellent performance and superior beam quality. We are immensely proud of these recent accomplishments and would like to share the news with the community. | |||
Poster MOPOJO14 [0.350 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOJO14 | ||
About • | Received ※ 19 August 2022 — Revised ※ 21 August 2022 — Accepted ※ 28 August 2022 — Issue date ※ 16 October 2022 | ||
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MOPOJO15 | Low Energy Linac for Electronic Brachytherapy | electron, radiation, simulation, linac | 59 |
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Funding: The project is supported by NNSA under Contract 89233121CNA000209. The use of electronic brachytherapy (EB) has grown rapidly over the past decade. It is gaining significant interest from the global medical community as an improved user-friendly technology to reduce the usage of Ir-192. However, the present EB machines all use electron beams at energies of 100 kV or less to generate the X-ray photons, which limits their use to low dose-rate brachytherapy. We focus on the development of a compact and light weight 1-MeV linac to generate and deliver >250 kV X-ray photons to the patient. The device is intended to retrofit to existing brachytherapy applicators. In this paper we will report progress on this project. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOJO15 | ||
About • | Received ※ 20 August 2022 — Revised ※ 26 August 2022 — Accepted ※ 31 August 2022 — Issue date ※ 09 September 2022 | ||
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MOPOGE03 | Design of a Linear Accelerator for Isotope Production | DTL, linac, rfq, ECR | 142 |
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The recent accelerator developments allow the design of very efficient linear accelerators for various applications. The possible use of concepts, components and developments well established or recently achieved in larger projects will be illustrated, with some examples related to isotope production for medical applications. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOGE03 | ||
About • | Received ※ 14 August 2022 — Revised ※ 16 August 2022 — Accepted ※ 30 August 2022 — Issue date ※ 05 September 2022 | ||
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MOPOGE09 | Commissioning Status of the iBNCT Accelerator | neutron, operation, rfq, radiation | 164 |
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An accelerator-based boron neutron capture therapy (BNCT) has been studied intensively in recent years as one of the new cancer therapies after many clinical research with nuclear reactors. In the iBNCT project, the accelerator configuration consists of an RFQ and a DTL which have proven achievements in J-PARC. Meanwhile, a high duty factor is required to have a sufficient thermal neutron flux needed by BNCT treatments. After a failure of the klystron power supply occurred in Feb. 2019, beam operation was resumed in May 2020. To date, an average current of about 2 mA with the beam repetition rate of 75 Hz has been achieved with stable operation. Irradiation tests with cells and mice are ongoing together with characteristic measurements of the neutron beam. In parallel with that, we have been gradually improving the accelerator cooling-water system for further stability. In this contribution, the present status and prospects of the iBNCT accelerator are reported. | |||
Slides MOPOGE09 [0.852 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOGE09 | ||
About • | Received ※ 12 August 2022 — Revised ※ 19 August 2022 — Accepted ※ 02 September 2022 — Issue date ※ 30 September 2022 | ||
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MOPORI09 | Linear Accelerator for Demonstration of X-Ray Radiotherapy with Flash Effect | linac, electron, solenoid, radiation | 243 |
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Funding: This project is funded by NIH, award number NIH R01CA255432. Emerging evidence indicates that the therapeutic window of radiotherapy can be significantly increased using ultra-high dose rate dose delivery (FLASH), by which the normal tissue injury is reduced without compromising tumor cell killing. The dose rate required for FLASH is 40 Gy/s or higher, 2-3 orders of magnitude greater than conventional radiotherapy. Among the major technical challenges in achieving the FLASH dose rate with X-rays is a linear accelerator that is capable of producing such a high dose rate. We will discuss the design of a high dose rate 18 MeV linac capable of delivering 100 Gy/s of collimated X-rays at 20 cm. This linac is being developed by a RadiaBeam/UCLA collaboration for a preclinical system as a demonstration of the FLASH effect in small animals. |
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Slides MOPORI09 [0.954 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPORI09 | ||
About • | Received ※ 19 August 2022 — Revised ※ 22 August 2022 — Accepted ※ 29 August 2022 — Issue date ※ 02 September 2022 | ||
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MOPORI13 | On the UNILAC Pulsed Gas Stripper at GSI | operation, vacuum, controls, heavy-ion | 258 |
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The UNILAC will serve as injector linac for heavy ion beams for the future FAIR, with the commissioning being anticipated in 2025. One of the crucial steps in the course of acceleration along the UNILAC is the stripping of the ions by a gas stripper in front of the main linac. Its efficiency is decisive in reaching the intensities required and may be increased by more than 50% by introducing hydrogen as stripping target, instead of the nitrogen used so far. This requires the stripper to be operated in a pulsed mode, since otherwise the pumping speed is not sufficient to maintain suitable vacuum conditions. The proof of principle was demonstrated in 2016*. A dedicated project aims for a setup suitable for routine operation. Main issues are safety, reliability and automated operation. We report on the development done since 2016 and give an overview of the realisation coming within the next few years. Results from systematic measurements on the properties of the valves and their impact on the properties of the stripping target are presented.
* P. Scharrer et al., Developments on the 1.4 MeV/u Pulsed Gas Stripper Cell, in Proc. LINAC2016, East Lansing, MI, USA, Sep. 2016. https://doi.org/10.18429/JACoW-LINAC2016-TUOP03 |
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Poster MOPORI13 [1.908 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPORI13 | ||
About • | Received ※ 05 August 2022 — Accepted ※ 14 August 2022 — Issue date ※ 02 September 2022 | ||
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TU2AA01 | Overview of ADS Projects in the World | linac, proton, SRF, status | 310 |
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Accelerator-driven subcritical systems (ADS) offer an advantageous option for the transmutation of nuclear waste. ADS employs high-intensity proton linear accelerators (linacs) to produce spallation neutrons for a subcritical reactor. Besides the challenges of any megawatt proton machine, ADS accelerator must operate with stringent reliability to avoid thermal stress in the reactor structures. Thus, ADS linacs have adopted a reliability-oriented design to satisfy the operation requirements. This work provides a review and the present status of the ADS linacs in the world. | |||
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please see instructions how to view/control embeded videos | |||
Slides TU2AA01 [2.951 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TU2AA01 | ||
About • | Received ※ 23 August 2022 — Revised ※ 28 August 2022 — Accepted ※ 01 September 2022 — Issue date ※ 14 October 2022 | ||
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TUPOJO01 | Commissioning Plan of the IFMIF-DONES Accelerator | MMI, linac, neutron, rfq | 330 |
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Funding: Funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 - EUROfusion) IFMIF-DONES (International Fusion Materials Irradiation Facility- DEMO-Oriented Neutron Early Source) - a powerful neutron irradiation facility for studies and certification of materials to be used in fusion reactors - is planned as part of the European roadmap to fusion electricity. Its main goal will be to characterize and to qualify materials under irradiation in a neutron field similar to the one faced in a fusion reactor. The intense neutron source is produced by impinging deuterons, from high-power linear deuteron accelerator, on a liquid lithium curtain. The facility has accomplished the preliminary design phase and is currently in its detailed design phase. At the present stage, it is important to have a clear understanding of how the commissioning of the facility will be performed, especially the commissioning of a 5 MW CW deuteron beam, together with the lithium curtain and the beam optimization for the neutron irradiation. In this contribution, the present plans for the hardware and beam commissioning of the accelerator will be given, focusing on the most critical aspects of the tiered approach and on the integration of the procedure with the lithium and tests systems. |
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Poster TUPOJO01 [2.038 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO01 | ||
About • | Received ※ 24 August 2022 — Revised ※ 29 August 2022 — Accepted ※ 31 August 2022 — Issue date ※ 02 September 2022 | ||
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TUPOJO03 | Optimized Beam Optics Design of the MINERVA/MYRRHA Superconducting Proton Linac | linac, cavity, diagnostics, rfq | 337 |
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The MYRRHA design for an accelerator driven system (ADS) is based on a 600 MeV superconducting proton linac. The first stage towards its realization is called MINERVA and was approved in 2018 to be constructed by SCK•CEN in Belgium. This 100 MeV linac, will serve as technology demonstrator for the high MYRRHA reliability requirements as well as driver for two independent target stations, one for radio-isotope research and production of radio-isotopes for medical purposes, the other one for fusion materials research. This contribution gives an overview of the latest accelerator machine physics design with a focus on the optimized medium (17 MeV) and high energy (100 MeV) beam transfer lines. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO03 | ||
About • | Received ※ 16 August 2022 — Revised ※ 28 August 2022 — Accepted ※ 01 September 2022 — Issue date ※ 02 September 2022 | ||
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TUPOJO19 | Progress on the Proton Power Upgrade Project at the Spallation Neutron Source | cryomodule, injection, neutron, proton | 390 |
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Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract number DE-AC05-00OR22725. The Proton Power Upgrade Project at the Spallation Neutron Source at Oak Ridge National Laboratory will increase the proton beam power capability from 1.4 to 2.8 MW. Upon completion of the project, 2 MW of beam power will be available for neutron production at the existing first target station with the remaining beam power available for the future second target station. The project will install seven superconducting RF cryomodules and supporting RF power systems and ancillaries to increase the beam energy to 1.3 GeV . The injection and extraction region of the accumulator ring will be upgraded, and a new 2 MW mercury target has been developed along with supporting equipment for high-flow gas injection to mitigate cavitation and fatigue stress. Equipment is being received from vendors and partner laboratories, and installation is underway with three major installation outages planned in 2022-2024. The project is planned to be completed in 2025. |
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Poster TUPOJO19 [1.361 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO19 | ||
About • | Received ※ 22 August 2022 — Revised ※ 15 August 2022 — Accepted ※ 31 August 2022 — Issue date ※ 01 September 2022 | ||
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TUPOJO20 | Progress of the ESS Proton Beam Imaging Systems | proton, radiation, vacuum, electronics | 394 |
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The ESS Target Proton Beam Imaging System has as objective to image the 5 MW ESS proton beam as it enters the spallation target. The Imaging System has to operate in a harsh radiation environment, leading to a number of challenges : development of radiation hard photon sources, long and aperture-restricted optical paths and fast electronics required to provide rapid information in case of beam anomalies. This paper outlines how main challenges of the Imaging System have been addressed, and the status of deployment as ESS gets closer to beam. | |||
Poster TUPOJO20 [21.417 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO20 | ||
About • | Received ※ 24 August 2022 — Revised ※ 31 August 2022 — Accepted ※ 01 September 2022 — Issue date ※ 02 September 2022 | ||
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TUPOGE17 | Fabrication Experience of the Pre-Production PIP-II SSR2 Cavities at Fermilab | cavity, niobium, operation, SRF | 529 |
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Funding: This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. The Proton Improvement Plan-II (PIP-II, [1]) linac will in- clude 35 Single Spoke Resonators type 2 (SSR2). A total of eight pre-production SSR2 jacketed cavities will be procured and five installed in the first pre-production cryomodule. The mechanical design of the jacketed cavity has been finalized and it will be presented in this paper along with fabrication and processing experience. The importance of interfaces, quality controls and procurement aspects in the design phase will be remarked as well as lessons learned during the fabri- cation process. Furthermore, development studies will be presented together with other design validation tests. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOGE17 | ||
About • | Received ※ 14 August 2022 — Revised ※ 16 August 2022 — Accepted ※ 31 August 2022 — Issue date ※ 04 September 2022 | ||
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