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| 001 | 5853 | ||
| 005 | 20230217124329.0 | ||
| 024 | 7 | _ | |a 10.1103/PhysRevE.80.026404 |2 DOI |
| 024 | 7 | _ | |a WOS:000269637900082 |2 WOS |
| 024 | 7 | _ | |a 2128/9322 |2 Handle |
| 037 | _ | _ | |a PreJuSER-5853 |
| 041 | _ | _ | |a eng |
| 082 | _ | _ | |a 530 |
| 084 | _ | _ | |2 WoS |a Physics, Fluids & Plasmas |
| 084 | _ | _ | |2 WoS |a Physics, Mathematical |
| 100 | 1 | _ | |0 P:(DE-HGF)0 |a Lu, W. |b 0 |
| 245 | _ | _ | |a Optimized K alpha x-ray flashes from femtosecond-laser-irradiated foils |
| 260 | _ | _ | |a College Park, Md. |b APS |c 2009 |
| 264 | _ | 1 | |3 online |2 Crossref |b American Physical Society (APS) |c 2009-08-27 |
| 264 | _ | 1 | |3 print |2 Crossref |b American Physical Society (APS) |c 2009-08-01 |
| 300 | _ | _ | |a 026404 |
| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a article |2 DRIVER |
| 440 | _ | 0 | |0 4924 |a Physical Review E |v 80 |x 1539-3755 |y 2 |
| 500 | _ | _ | |a This work was supported by the Deutsche Forschungsgemeinschaft (Contract No. SFB 616 and Grants No. GI 300/3-1, No. TE 190/6-1, and No. So 408/6-3) and the European Union (Marie-Curie-network FLASH). |
| 520 | _ | _ | |a We investigate the generation of ultrashort K alpha pulses from plasmas produced by intense femtosecond p-polarized laser pulses on Copper and Titanium targets. Particular attention is given to the interplay between the angle of incidence of the laser beam on the target and a controlled prepulse. It is observed experimentally that the K alpha yield can be optimized for correspondingly different prepulse and plasma scale-length conditions. For steep electron-density gradients, maximum yields can be achieved at larger angles. For somewhat expanded plasmas expected in the case of laser pulses with a relatively poor contrast, the K alpha yield can be enhanced by using a near-normal-incidence geometry. For a certain scale-length range (between 0.1 and 1 times a laser wavelength) the optimized yield is scale-length independent. Physically this situation arises because of the strong dependence of collisionless absorption mechanisms-in particular resonance absorption-on the angle of incidence and the plasma scale length, giving scope to optimize absorption and hence the K alpha yield. This qualitative description is supported by calculations based on the classical resonance absorption mechanism and by particle-in-cell simulations. Finally, the latter simulations also show that even for initially steep gradients, a rapid profile expansion occurs at oblique angles in which ions are pulled back toward the laser by hot electrons circulating at the front of the target. The corresponding enhancement in K alpha yield under these conditions seen in the present experiment represents strong evidence for this suprathermal shelf formation effect. |
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| 542 | _ | _ | |i 2009-08-27 |2 Crossref |u http://link.aps.org/licenses/aps-default-license |
| 588 | _ | _ | |a Dataset connected to Web of Science |
| 650 | _ | 7 | |2 WoSType |a J |
| 653 | 2 | 0 | |2 Author |a copper |
| 653 | 2 | 0 | |2 Author |a electron density |
| 653 | 2 | 0 | |2 Author |a high-speed optical techniques |
| 653 | 2 | 0 | |2 Author |a plasma density |
| 653 | 2 | 0 | |2 Author |a plasma production by laser |
| 653 | 2 | 0 | |2 Author |a plasma simulation |
| 653 | 2 | 0 | |2 Author |a plasma X-ray sources |
| 653 | 2 | 0 | |2 Author |a titanium |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Nicoul, M. |b 1 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Shymanovich, U. |b 2 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Tarasevitch, A. |b 3 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Zhou, P. |b 4 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Sokolowski-Tinten, K. |b 5 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a von der Linde, D. |b 6 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Masek, M. |b 7 |
| 700 | 1 | _ | |0 P:(DE-Juel1)132115 |a Gibbon, P. |b 8 |u FZJ |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Teubner, U. |b 9 |
| 773 | 1 | 8 | |a 10.1103/physreve.80.026404 |b American Physical Society (APS) |d 2009-08-27 |n 2 |p 026404 |3 journal-article |2 Crossref |t Physical Review E |v 80 |y 2009 |x 1539-3755 |
| 773 | _ | _ | |a 10.1103/PhysRevE.80.026404 |g Vol. 80, p. 026404 |0 PERI:(DE-600)2844562-4 |n 2 |q 80<026404 |p 026404 |t Physical review / E |v 80 |y 2009 |x 1539-3755 |
| 856 | 7 | _ | |u http://dx.doi.org/10.1103/PhysRevE.80.026404 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/5853/files/PhysRevE.80.026404.pdf |y OpenAccess |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/5853/files/PhysRevE.80.026404.gif?subformat=icon |x icon |y OpenAccess |
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| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/5853/files/PhysRevE.80.026404.pdf?subformat=pdfa |x pdfa |y OpenAccess |
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| 914 | 1 | _ | |y 2009 |
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