Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/DE0C9F48-A9EB-45B5-9183-D4B7E837AD12 | - |
| Identifier | https://doi.org/10.1088/1361-6587/ac4b06 | - |
| Identifier | https://iopscience.iop.org/article/10.1088/1361-6587/ac4b06 | - |
| Language | en | - |
| Extent | 6 pages | en |
| Title | Improving a high-power laser-based relativistic electron source: the role of laser pulse contrast and gas jet density profile | en |
| Creator | Grigoriadis A. | en |
| Creator | Andrianaki Georgia | en |
| Creator | Ανδριανακη Γεωργια | el |
| Creator | Fitilis Ioannis | en |
| Creator | Dimitriou Vasilis | en |
| Creator | Clark E. I. | en |
| Creator | Papadogiannis Nektarios | en |
| Creator | Benis Emmanouil | en |
| Creator | Tatarakis, Michael, 19..- | en |
| Publisher | IOP Publishing | en |
| Description | We acknowledge support of this work by the project 'ELI—LASERLAB Europe Synergy, HiPER & IPERION-CH.gr' (MIS 5002735) which is implemented under the Action 'Reinforcement of the Research and Innovation Infrastructure', funded by the Operational Programme 'Competitiveness, Entrepreneurship and Innovation' (NSRF 2014-2020) and co-financed by Greece and the European Union (European Regional Development Fund). This work was supported by computational time granted by the Greek Research & Technology Network (GRNET) in the National HPC facility-ARIS-under Project ID pr011027-LaMPIOS. This work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No. 101052200—EUROfusion) and the Hellenic National Program of Controlled Thermonuclear Fusion. | en |
| Content Summary | A relativistic electron source based on high power laser interaction with gas jet targets has been developed at the Institute of Plasma Physics and Lasers of the Hellenic Mediterranean University. Initial measurements were conducted using the 'Zeus' 45 TW laser with peak intensities in the range of 1018–1019 W cm−2 interacting with a He pulsed gas jet having a 0.8 mm diameter nozzle. A significant improvement of the electron signal was measured after using an absorber to improve the laser pulse contrast from 10−10 to 10−11. A high stability quasi-mono-energetic electron beam of about 50 MeV was achieved and measured using a magnetic spectrometer for pulsed gas jet backing pressure of 12 bar. Supplementary studies using a 3 mm diameter nozzle for backing pressures in the range of 35–40 bar showed electron beam production with energies spread in the range from 50 to 150 MeV. The pulsed jet density profile was determined using interferometric techniques. Particle-in-cell simulations, at the above experimentally determined conditions, support our experimental findings. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2024-03-06 | - |
| Date of Publication | 2022 | - |
| Subject | Laser wakefield acceleration (LWFA) | en |
| Subject | Laser plasma interaction | en |
| Subject | Electron beams | en |
| Bibliographic Citation | A. Grigoriadis, G. Andrianaki, I. Fitilis, V. Dimitriou, E. l. Clark, N. A. Papadogiannis, E. P. Benis and M. Tatarakis, “Improving a high-power laser-based relativistic electron source: the role of laser pulse contrast and gas jet density profile,” Plasma Phys. Control. Fusion, vol. 64, no. 4, Feb. 2022, doi: 10.1088/1361-6587/ac4b06. | en |
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