Angular-Resolved Thomson Parabola Spectrometer for Laser-Driven Ion Accelerators

López, Carlos Salgado; Apiñaniz, J. I.; Henares, J. L.; Pérez-Hernández, J. A.; Luis, D. De; Volpe, L.; Gatti, G.

doi:10.3390/s22093239

Cited by 8 publications

(5 citation statements)

References 60 publications

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“…The first step has been the characterization of the VEGA-3 proton beam. The energy of the beam has been measured by a Thomson Parabola Spectrometer (TPS), fully developed at CLPU 7 , with a Micro-Channel Plate (MCP) attached to a phosphor screen to generate an optical signal detectable by a CMOS camera. The TPS electric and magnetic fields deflect the particles from their original trajectories as a function of their charge-mass ratios and energies.…”

Section: Methodsmentioning

confidence: 99%

“…CLPU, as a reference facility in Spain for this type of experiments, has extensive experience in proton acceleration using both the VEGA-2 TW line 5,6 and the VEGA-3 PW line 7 . However, the intrinsic divergence (with an energy dependent half-opening angle up to more than 20 degrees, according to the different laser systems 8,9 ) and huge energy spread of these sources can represent a disadvantage for potential applications 10 , such as hadrontheraphy 11 , FLASH therapy 12 , material science applications as Particle Induced X ray Emission (PIXE) 13 and Particle Induced Gamma-Ray Emission (PIGE) 14 .…”

Section: Introductionmentioning

confidence: 99%

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Design and implementation of the first proton beamline in VEGA-3 Petawatt laser system.

Cebriano,

Curcio,

Aginako

et al. 2024

Preprint

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Laser-Plasma ion acceleration is acquiring importance on a daily basis due to incipient applicability in certain research fields.However, the energy and divergence control of these brilliant sources can be considered a bottleneck in the developmentof some applications. In this work, we present the commissioning of a compact proton beamline based on a triplet ofquadrupoles dedicated to focus and collect short and energetic pulses, open to the user community. The focused proton beamcharacterization has been carried out by imaging of scintillation detectors with different particle filters. Experimental resultshave been compared with numerical simulations performed with Monte Carlo code (MCNP6) and T-STEP that have been usedto perform the deposited energy, the particle tracking, and the particle distribution in different focal configurations, respectively.Charges of nC (∼1010protons with energies up to 17.25 MeV) have been measured at the focal planes compacting the thebeam to spot sizes of a few millimetres in RMS (root mean square). The percentage fluctuation of the transported chargesvalues has been studied. The beam rigidity has been measured by transverse moving of the quadrupoles and subsequentbeam centroid shift, allowing to cross correlate the deflected energy with the energy ranges resulting from the filtering process.Finally, the versatility of the system, which is also suitable for operating at high repetition rate (HRR), has been demonstratedby proton beam lithography tests using a mask.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and implementation of the first proton beamline in VEGA-3 Petawatt laser system.

Cebriano,

Curcio,

Aginako

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…A Thomson parabola spectrometer 39 was used to measure the energy spectrum and the cut-off energy of the laser-accelerated protons during the irradiation series. A pinhole of diameter 200 µm was placed at the entrance of the TPS to collimate the ion beam.…”

Section: Methodsmentioning

confidence: 99%

Production of carbon-11 for PET preclinical imaging using a high-repetition rate laser-driven proton source

Peñas,

Alejo,

Bembibre

et al. 2024

Sci Rep

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Most advanced medical imaging techniques, such as positron-emission tomography (PET), require tracers that are produced in conventional particle accelerators. This paper focuses on the evaluation of a potential alternative technology based on laser-driven ion acceleration for the production of radioisotopes for PET imaging. We report for the first time the use of a high-repetition rate, ultra-intense laser system for the production of carbon-11 in multi-shot operation. Proton bunches with energies up to 10–14 MeV were systematically accelerated in long series at pulse rates between 0.1 and 1 Hz using a PW-class laser. These protons were used to activate a boron target via the $$^{11}$$ 11 B(p,n)$$^{11}$$ 11 C nuclear reaction. A peak activity of 234 kBq was obtained in multi-shot operation with laser pulses with an energy of 25 J. Significant carbon-11 production was also achieved for lower pulse energies. The experimental carbon-11 activities measured in this work are comparable to the levels required for preclinical PET, which would be feasible by operating at the repetition rate of current state-of-the-art technology (10 Hz). The scalability of next-generation laser-driven accelerators in terms of this parameter for sustained operation over time could increase these overall levels into the clinical PET range.

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“…More specific information of TP0 can be found from Salgado-López et al. (2022), and for TP60 and TP90 from Baccou (2016).…”

Section: Experimental Set-upmentioning

confidence: 99%

Proton and helium ions acceleration in near-critical density gas targets by short-pulse Ti:Sa PW-class laser

Henares,

Puyuelo-Valdes,

Salgado-López

et al. 2023

J. Plasma Phys.

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The ability to quickly refresh gas-jet targets without cycling the vacuum chamber makes them a promising candidate for laser-accelerated ion experiments at high repetition rate. Here we present results from the first high repetition rate ion acceleration experiment on the VEGA-3 PW-class laser at CLPU. A near-critical density gas-jet target was produced by forcing a 1000 bar H $_2$ and He gas mix through bespoke supersonic shock nozzles. Proton energies up to 2 MeV were measured in the laser forward direction and 2.2 MeV transversally. He $^{2+}$ ions up to 5.8 MeV were also measured in the transverse direction. To help maintain a consistent gas density profile over many shots, nozzles were designed to produce a high-density shock at distances larger than 1 mm from the nozzle exit. We outline a procedure for optimizing the laser–gas interaction by translating the nozzle along the laser axis and using different nozzle materials. Several tens of laser interactions were performed with the same nozzle which demonstrates the potential usefulness of gas-jet targets as high repetition rate particle source.

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Angular-Resolved Thomson Parabola Spectrometer for Laser-Driven Ion Accelerators

Cited by 8 publications

References 60 publications

Design and implementation of the first proton beamline in VEGA-3 Petawatt laser system.

Design and implementation of the first proton beamline in VEGA-3 Petawatt laser system.

Production of carbon-11 for PET preclinical imaging using a high-repetition rate laser-driven proton source

Proton and helium ions acceleration in near-critical density gas targets by short-pulse Ti:Sa PW-class laser

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