Abstract
We report on the transverse refluxing of energetic electrons in mass-limited foil targets irradiated with high intensity (1 x 10(19)Wcm(-2)), picosecond laser pulses. It is shown experimentally that the maximum energies of protons accelerated by sheath fields formed at the rear and at the edges of the target increase with decreasing target size. This is due to the modification of the sheath field by the energetic electrons which spread laterally along the target surface and reflect from the edges. In addition, it is shown that this transverse refluxing of energetic electrons can be used to tailor the spatial-intensity distribution of the proton beam by engineering the shape and size of the target.
| Original language | English |
|---|---|
| Article number | 105008 |
| Pages (from-to) | - |
| Number of pages | 9 |
| Journal | Plasma Physics and Controlled Fusion |
| Volume | 53 |
| Issue number | 10 |
| Early online date | 15 Sep 2011 |
| DOIs | |
| Publication status | Published - Oct 2011 |
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Keywords
- irradiation
- solids
- generation
- plasma
Cite this
}
Controlling the properties of ultraintense laser-proton sources using transverse refluxing of hot electrons in shaped mass-limited targets. / Tresca, O.; Carroll, D. C.; Yuan, X. H.; Aurand, B.; Bagnoud, V.; Brenner, C. M.; Coury, M.; Fils, J.; Gray, R. J.; Kuehl, T.; Li, C.; Li, Y. T.; Lin, X. X.; Quinn, M. N.; Evans, R. G.; Zielbauer, B.; Roth, M.; Neely, D.; McKenna, P.
In: Plasma Physics and Controlled Fusion, Vol. 53, No. 10, 105008, 10.2011, p. -.Research output: Contribution to journal › Article
TY - JOUR
T1 - Controlling the properties of ultraintense laser-proton sources using transverse refluxing of hot electrons in shaped mass-limited targets
AU - Tresca, O.
AU - Carroll, D. C.
AU - Yuan, X. H.
AU - Aurand, B.
AU - Bagnoud, V.
AU - Brenner, C. M.
AU - Coury, M.
AU - Fils, J.
AU - Gray, R. J.
AU - Kuehl, T.
AU - Li, C.
AU - Li, Y. T.
AU - Lin, X. X.
AU - Quinn, M. N.
AU - Evans, R. G.
AU - Zielbauer, B.
AU - Roth, M.
AU - Neely, D.
AU - McKenna, P.
PY - 2011/10
Y1 - 2011/10
N2 - We report on the transverse refluxing of energetic electrons in mass-limited foil targets irradiated with high intensity (1 x 10(19)Wcm(-2)), picosecond laser pulses. It is shown experimentally that the maximum energies of protons accelerated by sheath fields formed at the rear and at the edges of the target increase with decreasing target size. This is due to the modification of the sheath field by the energetic electrons which spread laterally along the target surface and reflect from the edges. In addition, it is shown that this transverse refluxing of energetic electrons can be used to tailor the spatial-intensity distribution of the proton beam by engineering the shape and size of the target.
AB - We report on the transverse refluxing of energetic electrons in mass-limited foil targets irradiated with high intensity (1 x 10(19)Wcm(-2)), picosecond laser pulses. It is shown experimentally that the maximum energies of protons accelerated by sheath fields formed at the rear and at the edges of the target increase with decreasing target size. This is due to the modification of the sheath field by the energetic electrons which spread laterally along the target surface and reflect from the edges. In addition, it is shown that this transverse refluxing of energetic electrons can be used to tailor the spatial-intensity distribution of the proton beam by engineering the shape and size of the target.
KW - irradiation
KW - solids
KW - generation
KW - plasma
UR - http://www.scopus.com/inward/record.url?scp=80053143777&partnerID=8YFLogxK
U2 - 10.1088/0741-3335/53/10/105008
DO - 10.1088/0741-3335/53/10/105008
M3 - Article
VL - 53
SP - -
JO - Plasma Physics and Controlled Fusion
JF - Plasma Physics and Controlled Fusion
SN - 0741-3335
IS - 10
M1 - 105008
ER -