Low divergent MeV-class proton beam with micrometer source size driven by a few-cycle laser pulse
Spatial characterization of 0.5 MeV proton beam, driven by 12 fs, 35 mJ, 10 19 W/cm 2 intense laser-foil interaction is presented. The accelerated proton beam has been applied to obtain a high-resolution, point-projection static radiograph of a fine mesh using a CR-39 plate. The reconstruction of m...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2022
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| Sorozat: | SCIENTIFIC REPORTS
12 No. 1 |
| Tárgyszavak: | |
| doi: | 10.1038/s41598-022-12240-2 |
| mtmt: | 33107248 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/26710 |
| Tartalmi kivonat: | Spatial characterization of 0.5 MeV proton beam, driven by 12 fs, 35 mJ, 10 19 W/cm 2 intense laser-foil interaction is presented. The accelerated proton beam has been applied to obtain a high-resolution, point-projection static radiograph of a fine mesh using a CR-39 plate. The reconstruction of mesh edge blurring and particle ray tracing suggests that these protons have an effective source size (FWHM) of just 3.3 ± 0.3 µm. Furthermore, the spatial distribution of the proton beam recorded on the CR-39 showed that the divergence of these particles is less than 5-degree (FWHM). The low divergence and small source size of the proton beam resulted in an ultralow transverse emittance of 0.00032 π-mm-mrad, which is several orders of magnitude smaller than that of a conventional accelerator beam. |
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| Terjedelem/Fizikai jellemzők: | 8 |
| ISSN: | 2045-2322 |