IFMIF/EVEDA RFQ Beam Commissioning at Nominal 125 mA Deuteron Beam in Pulsed Mode

Grespan, Francesco; Akagi, T.; Bellan, Luca; Bolzon, B.; Cara, Philippe; Chauvin, Nicolas; Comunian, M.; Dzitko, Hervé; Fagotti, E.; Hirata, Yoshihiro; Jiménez-Rey, D.; Jokinen, Antti; Kondo, Keitaro; Marqueta, Alvaro; Marroncle, J.; Moya, Iván; Palmieri, Antonio; Podadera, Ivan; Páramo, Angel Rodríguez; Scantamburlo, Francesco; Shimosaki, Y.; Shinya, Takahiro; Sugimoto, M.

doi:10.18429/jacow-ipac2020-tuvir11

Cited by 4 publications

(5 citation statements)

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“…This phase was finally completed in July 2019 with the successful injection of a 140 mA D? beam with a duty cycle of 0.1% into the RFQ, leading to a 125 mA, 5 MeV accelerated beam at its exit [29]. Under these conditions, the RFQ transmission was 90%, in line with what was expected and the beam was characterized and losslessly transported to the aluminum low power Beam Dump.…”

Section: Lipac Commissioning Testssupporting

confidence: 74%

“…At the end of the FP8 activities, various systems of the IFMIF-DONES accelerator have reached a high level of design maturity, like the injector, the RFQ and the MEBT as the validation tests of their prototypes in LIPAc have advanced [29,30] as well as the commissioning of similar accelerators around the world (see ''LIPAc Commissioning Tests'' section). As a main conclusion, it is possible to state that the design of the accelerator systems seems feasible and no showstoppers are identified so far.…”

Section: Accelerator Systemsmentioning

confidence: 99%

See 1 more Smart Citation

The IFMIF-DONES Project: Design Status and Main Achievements Within the EUROfusion FP8 Work Programme

Bernardi

Ibarra²,

Arbeiter

et al. 2022

J Fusion Energ

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International Fusion Materials Irradiation Facility-DEMO-Oriented NEutron Source (IFMIF-DONES) is a high-intensity neutron irradiation facility for qualification of fusion reactor materials, which is being designed as part of the European roadmap to fusion-generated electricity. Its main purpose is to study the behavior of materials properties under irradiation in a neutron flux able to simulate the same effects in terms of relevant nuclear responses as those expected in the first wall of the DEMO reactor which is envisaged to follow ITER. It is thus a key facility to support the design, licensing and safe operation of DEMO as well as of the fusion power plants that will be developed afterwards. The start of its construction is foreseen in the next few years. In this contribution, an overview of the IFMIF-DONES neutron source is presented together with a snapshot of the current engineering design status and of the relevant key results achieved within the EUROfusion Work Package Early Neutron Source (WPENS) as part of the 2014–2020 EURATOM Research and Training Programme, complementary to the EU Horizon 2020 Framework Programme (FP8). Moreover, some information on the future developments of the project are given.

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Section: Lipac Commissioning Testssupporting

confidence: 74%

Section: Accelerator Systemsmentioning

confidence: 99%

The IFMIF-DONES Project: Design Status and Main Achievements Within the EUROfusion FP8 Work Programme

Bernardi

Ibarra²,

Arbeiter

et al. 2022

J Fusion Energ

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“…This result has also been confirmed experimentally [14]. The IFMIF RFQ obtained a real transmission of more than 90%, in a pulsed d.c. of 0.1%, with a total of 125 mA of deuteron in output at the beam dump [15].…”

Section: Comparison Resultsmentioning

confidence: 99%

“…The simulation code, TraceWin [12], has demonstrated successful comparison with experimental results, particularly in terms of RFQ transmission [14][15][16]. This success is attributed to its ability to handle the RF tuned voltage shape and mechanical electrode positioning, even in cases where the constructed RFQ configuration breaks the vanes quadrupole symmetry; this is done by loading the realized vanes geometry into the simulation program.…”

Section: Jinst 19 P01024 7 Conclusionmentioning

confidence: 99%

Comparison of longitudinal emittance of various RFQs

Comunian,

Bellan,

Pisent

2024

J. Inst.

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In various projects a large variety of RFQs has been developed, for different application, with different average current, frequency, and energy range. In this article, a comparison, in a scaled way, will be done, using the build RFQs of IFMIF, ESS, SPES, ANTHEM. In particular, the characteristics of the beam dynamics will be analyzed, such as transmission, longitudinal output emittance, and real performance versus simulation.

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“…LIPAc is a linear accelerator comprised of an ECR ion source (100keV) an RFQ (5MeV), a MEBT which includes 2 buncher cavities, a SRF LINAC (9MeV) with 8 interleaved HWR superconductive cavities and solenoids with integrated steerers, a HEBT and a beam dump capable to withstand the 125mA D+ beam at 9 MeV, which corresponds to 1.1 MW beam power in CW. In July 2019 LIPAc demonstrated the acceleration of 1ms pulse length of 125mA of D+ [2,3]. The installation and commissioning project is advancing in phases and the main goal of 2021-2023 is to achieve CW operations at nominal beam current at 5MeV [3,4].…”

Section: Introductionmentioning

confidence: 99%

RF conditioning towards continuous wave of the RFQ of the Linear IFMIF Prototype Accelerator

De Franco,

Comunian,

Fagotti

et al. 2024

J. Phys.: Conf. Ser.

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The Linear IFMIF Prototype Accelerator (LIPAc) is designed to accelerate 125mA of deuteron beam to 9MeV in continuous wave (CW). The superconductive RF Linac has not yet been installed and the final accelerating stage now under commissioning is the RFQ. This system has been designed and developed by INFN (Italy) before installation in QST (Japan). The RFQ is the longest in the World with its 9.8m and requires RF power injection from 8 independent and synchronized coupler ports. LIPAc demonstrated the acceleration of 125mA deuteron beam at 5MeV for 1ms with a 1s repetition period in 2019. A fundamental milestone to extend beam operations to CW is the completion of the RFQ cavity RF conditioning up to CW. This work presents the strategy followed to successfully reach CW RF injection at 80% of the nominal 132kV vane voltage. The field distribution correction scheme (acting on cooling system at various power levels) was successfully verified. We discuss as well the main challenges encountered on the way, which include updates of the RF system, failure of a circulator (by arcs) and the damages occurred on some of the RF couplers. Finally, the recent status and outlook will be provided.

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IFMIF/EVEDA RFQ Beam Commissioning at Nominal 125 mA Deuteron Beam in Pulsed Mode

Cited by 4 publications

References 0 publications

The IFMIF-DONES Project: Design Status and Main Achievements Within the EUROfusion FP8 Work Programme

The IFMIF-DONES Project: Design Status and Main Achievements Within the EUROfusion FP8 Work Programme

Comparison of longitudinal emittance of various RFQs

RF conditioning towards continuous wave of the RFQ of the Linear IFMIF Prototype Accelerator

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