Activation Analyses of Beam Dump Materials Irradiated by 100-MeV Protons

Gil, Choong-Sup; Kim, Do Heon; Kim, Jiho

doi:10.3938/jkps.50.1396

Cited by 3 publications

(1 citation statement)

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“…Laser-driven ion sources provide ultra-short, low emittance ion bunches containing several ion species (especially protons and carbon ions), with a broad energy spectrum and maximum energy up to ∼60 MeV for protons and ∼25 MeV/nucleon for carbon ions. They require a relatively simple experimental apparatus and may allow the reduction of Plasma Physics and Controlled Fusion Development of foam-based layered targets for laser-driven ion beam production I Prencipe 1,2 , A Sgattoni 3,4 , D Dellasega 1,5 , L Fedeli 3,4 , L Cialfi 1 , Il Woo Choi 6,7,9 , I Jong Kim 6,7,10 , K A Janulewicz 6,8 , K F Kakolee 6 , Hwang Woon Lee 6 , Jae Hee Sung 6,7 , Seong Ku Lee 6,7 , Chang Hee Nam 6,8 and M Passoni 1,5 radioprotection issues related to ion beam transport. Thanks to their properties, laser-based ion sources may find applications in several fields: material characterisation [3] and manufacturing [4], testing and calibration of radiation detectors and beam dumps [5], stress testing of components for spacecrafts [6], nuclear fission and nuclear reactors [7] and the production of radioisotopes for medical imaging, such as 99m Tc, 82 Sr and 68 Ge [8].…”

Section: Introductionmentioning

confidence: 99%

Development of foam-based layered targets for laser-driven ion beam production

Prencipe

Sgattoni

Dellasega

et al. 2016

Plasma Phys. Control. Fusion

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We report on the development of foam-based double-layer targets (DLTs) for laser-driven ion acceleration. Foam layers with a density of a few mg cm −3 and controlled thickness in the 8-36 μm range were grown on μm-thick Al foils by pulsed laser deposition (PLD). The DLTs were experimentally investigated by varying the pulse intensity, laser polarisation and target properties. Comparing DLTs with simple Al foils, we observed a systematic enhancement of the maximum and average energies and number of accelerated ions. Maximum energies up to 30 MeV for protons and 130 MeV for C 6+ ions were detected. Dedicated three-dimensional particle-in-cell (3D-PIC) simulations were performed considering both uniform and clusterassembled foams to interpret the effect of the foam nanostructure on the acceleration process.

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Section: Introductionmentioning

confidence: 99%

Development of foam-based layered targets for laser-driven ion beam production

Prencipe

Sgattoni

Dellasega

et al. 2016

Plasma Phys. Control. Fusion

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Human radiological safety assessment for petawatt laser-driven ion acceleration experiments in CLAPA-T

Zhang,

Zhao,

et al. 2024

Matter and Radiation at Extremes

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The newly built Compact Laser Plasma Accelerator–Therapy facility at Peking University will deliver 60 J/1 Hz laser pulses with 30 fs duration. Driven by this petawatt laser facility, proton beams with energy up to 200 MeV are expected to be generated for tumor therapy. During high-repetition operation, both prompt radiation and residual radiation may cause safety problems. Therefore, human radiological safety assessment before commissioning is essential. In this paper, we simulate both prompt and residual radiation using the Geant4 and FLUKA Monte Carlo codes with reasonable proton and as-produced electron beam parameters. We find that the prompt radiation can be shielded well by the concrete wall of the experimental hall, but the risk from residual radiation is nonnegligible and necessitates adequate radiation cooling. On the basis of the simulation results, we discuss the constraints imposed by radiation safety considerations on the annual working time, and we propose radiation cooling strategies for different shooting modes.

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Influence of Powder Particle Size Distribution on the Printability of Pure Copper for Selective Laser Melting

Sinico¹,

Cogo²,

Benettoni³

et al. 2019

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Activation Analyses of Beam Dump Materials Irradiated by 100-MeV Protons

Cited by 3 publications

References 0 publications

Development of foam-based layered targets for laser-driven ion beam production

Development of foam-based layered targets for laser-driven ion beam production

Human radiological safety assessment for petawatt laser-driven ion acceleration experiments in CLAPA-T

Influence of Powder Particle Size Distribution on the Printability of Pure Copper for Selective Laser Melting

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