This title appears in the Scientific Report :
2008
Please use the identifier:
http://dx.doi.org/10.1088/1367-2630/10/3/033034 in citations.
Please use the identifier: http://hdl.handle.net/2128/28987 in citations.
Spectral shaping of laser generated proton beams
Spectral shaping of laser generated proton beams
The rapid progress in the field of laser particle acceleration has stimulated a debate about the promising perspectives of laser based ion beam sources. For a long time, the beams produced exhibited quasi-thermal spectra. Recent proof-of-principle experiments demonstrated that ion beams with narrow...
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Personal Name(s): | Pfotenhauer, S.M. |
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Jäckel, O. / Sachtleben, A. / Polz, J. / Ziegler, W. / Schlenvoigt, H.-P. / Amthor, K.-U. / Kaluza, M.C. / Ledingham, K. W. D. / Sauerbrey, R. / Gibbon, P. / Robinson, A. P. L. / Schwoerer, H. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Published in: | New journal of physics, 10 (2008) S. 033034 |
Imprint: |
[Bad Honnef]
Dt. Physikalische Ges.
2008
|
Physical Description: |
033034 |
DOI: |
10.1088/1367-2630/10/3/033034 |
Document Type: |
Journal Article |
Research Program: |
Scientific Computing |
Series Title: |
New Journal of Physics
10 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/28987 in citations.
The rapid progress in the field of laser particle acceleration has stimulated a debate about the promising perspectives of laser based ion beam sources. For a long time, the beams produced exhibited quasi-thermal spectra. Recent proof-of-principle experiments demonstrated that ion beams with narrow energy distribution can be generated from special target geometries. However, the achieved spectra were strongly limited in terms of monochromacity and reproducibility. We show that microstructured targets can be used to reliably produce protons with monoenergetic spectra above 2MeV with less than 10% energy spread. Detailed investigations of the effects of laser ablation on the target resulted in a significant improvement of the reproducibility. Based on statistical analysis, we derive a scaling law between proton peak position and laser energy, underlining the suitability of this method for future applications. Both the quality of the spectra and the scaling law are well reproduced by numerical simulations. |