Abstract
| Language | English |
|---|---|
| Pages | 58-62 |
| Number of pages | 4 |
| Journal | Nature Physics |
| Volume | 3 |
| DOIs | |
| Publication status | Published - 2007 |
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Keywords
- high-power lasers
- high-quality beams
- energetic ions
- laser-accelerated protons
- proton acceleration
- petawatt-laser–plasma interactions
- plasma-expansion simulation tools
- medical applications
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Scaling of proton acceleration driven by petawatt-laser-plasma interactions. / Robson, L.; Simpson, P.T.; Clarke, R.J.; Ledingham, K.W.D.; Lindau, F.; Lundh, O.; McCanny, T.; Mora, P.; Neely, D.; Wahlström, C.G.; Zepf, M.; McKenna, P.
In: Nature Physics, Vol. 3, 2007, p. 58-62.Research output: Contribution to journal › Article
TY - JOUR
T1 - Scaling of proton acceleration driven by petawatt-laser-plasma interactions
AU - Robson, L.
AU - Simpson, P.T.
AU - Clarke, R.J.
AU - Ledingham, K.W.D.
AU - Lindau, F.
AU - Lundh, O.
AU - McCanny, T.
AU - Mora, P.
AU - Neely, D.
AU - Wahlström, C.G.
AU - Zepf, M.
AU - McKenna, P.
PY - 2007
Y1 - 2007
N2 - The possibility of using high-power lasers to generate high-quality beams of energetic ions is attracting large global interest. The prospect of using laser-accelerated protons in medicine attracts particular interest, as these schemes may lead to compact and relatively low-cost sources. Among the challenges remaining before these sources can be used in medicine is to increase the numbers and energies of the ions accelerated. Here, we extend the energy and intensity range over which proton scaling is experimentally investigated, up to 400 J and 6×1020 Wcm−2 respectively, and find a slower proton scaling than previously predicted.With the aid of plasma-expansion simulation tools, our results suggest the importance of time-dependent andmultidimensional effects in predicting the maximum proton energy in this ultrahigh-intensity regime. The implications of our new understanding of proton scaling for potential medical applications are discussed.
AB - The possibility of using high-power lasers to generate high-quality beams of energetic ions is attracting large global interest. The prospect of using laser-accelerated protons in medicine attracts particular interest, as these schemes may lead to compact and relatively low-cost sources. Among the challenges remaining before these sources can be used in medicine is to increase the numbers and energies of the ions accelerated. Here, we extend the energy and intensity range over which proton scaling is experimentally investigated, up to 400 J and 6×1020 Wcm−2 respectively, and find a slower proton scaling than previously predicted.With the aid of plasma-expansion simulation tools, our results suggest the importance of time-dependent andmultidimensional effects in predicting the maximum proton energy in this ultrahigh-intensity regime. The implications of our new understanding of proton scaling for potential medical applications are discussed.
KW - high-power lasers
KW - high-quality beams
KW - energetic ions
KW - laser-accelerated protons
KW - proton acceleration
KW - petawatt-laser–plasma interactions
KW - plasma-expansion simulation tools
KW - medical applications
UR - http://dx.doi.org/doi:10.1038/nphys476
U2 - 10.1038/nphys476
DO - 10.1038/nphys476
M3 - Article
VL - 3
SP - 58
EP - 62
JO - Nature Physics
T2 - Nature Physics
JF - Nature Physics
SN - 1745-2473
ER -