Status of the SPIRAL2 injector commissioning

Thuillier, T.; Angot, J.; Barué, C.; Bertrand, Patrick; Biarrotte, Jean‐Luc; Canet, Carles; Denis, Jean Francois; Ferdinand, R.; Flambard, J. L.; Jacob, J.; Jardin, P.; Lamy, T.; Lemagnen, F.; Maunoury, L.; Osmond, B.; Peaucelle, C.; Roger, Arnaud; Solé, Patrick; Touzery, R.; Tuske, O.; Uriot, D.

doi:10.1063/1.4935227

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…Next, a low energy beam transfer line (LEBT) injects the beam into a radiofrequency quadrupole (RFQ). An interconnection between the existing M/Q=3 and the new M/Q=7 injectors LEBT will allow to inject ions from the existing PHOENIX V3 ECRIS [2] toward the new RFQ. The input energy required in the RFQ is E ≥ 10 keV/Q.…”

Section: The Newgain Injector and Its Beam Requirementsmentioning

confidence: 99%

ASTERICS, a new 28 GHz electron cyclotron resonance ion source for the SPIRAL2 accelerator

Thuillier,

Angot,

Cernuschi

et al. 2024

J. Phys.: Conf. Ser.

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A new A/Q=7 injector is under development for the SPIRAL2 accelerator at Caen, France (NEWGAIN project). A new 28 GHz superconducting electron cyclotron resonance ion source named ASTERICS is under design for this project. The source features a modern cryostat and a large plasma chamber (91 mm radius and 600 mm length). The physical and technical motivations for a larger plasma volume are detailed and estimates of expected beam intensities enhancement are discussed. The source will mainly produce metallic ion beams: the concept of a temperature-controlled liner (up to 900°C) to stabilize high vapor pressure metal re-evaporation in the source is presented. The preliminary design of the ion source and its superconducting magnet are described.

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Section: The Newgain Injector and Its Beam Requirementsmentioning

confidence: 99%

ASTERICS, a new 28 GHz electron cyclotron resonance ion source for the SPIRAL2 accelerator

Thuillier,

Angot,

Cernuschi

et al. 2024

J. Phys.: Conf. Ser.

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“…For S3, the oven will be mounted in the Phoenix V3 ECRIS [6] while on GANIL-Cyclotrons, it will be used with the ECR4 ion sources. The oven must operate at least 2 or 3 weeks without any breakup and the oven head must be removable in order to be replaced quickly in operation.…”

Section: Specificationmentioning

confidence: 99%

Metal evaporation study using the GANIL high temperature oven for intense metal ion beams production

Bajeat

Barué

Dubois

et al. 2022

J. Phys.: Conf. Ser.

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A new resistive oven dedicated to the production of metal ion beams using ECR ion sources has been developed at GANIL. It aims to produce beams such as 58Niq+, 50Tiq+, 50Vq+ or 238Uq+ with ECR4 ion source on cyclotrons injectors and with Phoenix V3 ion source on Spiral 2facility. Typical intensity about 1.2 1013 pps is requested for the Super Separator Spectrometer (S3). Evaporated atom fluxes and their angular distributions have been measured on a dedicated test bench thanks to a quartz microbalance. These investigations were carried out using three crucibles with various exit caps geometries for which the fluxes and angular distributions display distinct behaviors. Based on those results, crucible is designed to obtain a high flux of atoms overlapping the ECR plasma while minimizing the atoms losses on the ion source chamber.

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“…This work is dedicated to the study of a low temperature metallic oven dedicated to calcium beam production at the SPIRAL2 facility at GANIL, France [1,2]. The motivation of the study is to better understand the physics and chemistry of such an oven with the ultimate goal to improve the global conversion efficiency of rare and expensive isotope atom (like 48 Ca) to an ion beam in Electron Cyclotron Resonance Ion Source (ECRIS).…”

Section: Introductionmentioning

confidence: 99%

Angular distribution measurement of atoms evaporated from a resistive oven applied to ion beam production

et al. 2021

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A low temperature oven has been developed to produce calcium beam with Electron Cyclotron Resonance Ion Source (ECRIS). The atom flux from the oven has been studied experimentally as a function of the temperature and the angle of emission by means of a quartz microbalance. The absolute flux measurement permitted to derive Antoine's coefficient for the calcium sample used: A=8.98± 0.07 and B=7787± 110 in standard unit. The angular FWHM of the atom flux distribution is found to be 53.7±7.3∘ at 848 K, temperature at which the gas behaviour is non collisional. The atom flux hysteresis observed experimentally in several laboratories is explained as follows: at first calcium heating, the evaporation comes from the sample only, resulting in a small evaporation rate. Once a full calcium layer has formed on the crucible refractory wall, the calcium evaporation surface includes the crucible's enhancing dramatically the evaporation rate for a given temperature. A Monte-Carlo code, developed to reproduce and investigate the oven behaviour as a function of temperature is presented. A discussion on the gas regime in the oven is proposed as a function of its temperature. A fair agreement between experiment and simulation is found.

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Status of the SPIRAL2 injector commissioning

Cited by 7 publications

References 4 publications

ASTERICS, a new 28 GHz electron cyclotron resonance ion source for the SPIRAL2 accelerator

ASTERICS, a new 28 GHz electron cyclotron resonance ion source for the SPIRAL2 accelerator

Metal evaporation study using the GANIL high temperature oven for intense metal ion beams production

Angular distribution measurement of atoms evaporated from a resistive oven applied to ion beam production

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