Laser Accelerated Proton Beams for Radiation Therapy C-M Ma, T Tajima, B Shahine, JS Li, MC Lee, T...
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Transcript of Laser Accelerated Proton Beams for Radiation Therapy C-M Ma, T Tajima, B Shahine, JS Li, MC Lee, T...
Laser Accelerated Proton Beams for Radiation Therapy
C-M Ma, T Tajima, B Shahine, JS Li,
MC Lee, T Guerrero and AL Boyer
Dept. of Radiation Oncology
Stanford University School of Medicine
Stanford, CA 94305, USA
Why/Why Not Proton Beams?
Advantageous dosimetry
characteristics
Expensive, cumbersome,
inflexible
Potential remains to be
explored
Computational and experimental proton acceleration as a function of laser intensity (Zhidkov et al. 1999).
0 5 10 15 20 25 30 35 40
D epth (cm )
0.0E+0
5.0E+4
1.0E+5
1.5E+5
2.0E+5
2.5E+5
3.0E+5
3.5E+5
Ene
rgy
(MeV
)
0 5 10 15 20 25 30
D epth (cm )
0.0E+0
2.0E+4
4.0E+4
6.0E+4
Ene
rgy
(MeV
)
80 100 120 140 160 180 200
Energy (M eV)
0.0
0.4
0.8
1.2
1.6
Pro
babi
lity
Combined dose distribution Proton spectrum
Current Research at Stanfordon Laser-Proton Beams
Particle-in-cell (PIC) simulations of laser-ion interactions
System design for a laser-proton therapy unit
Software development for accurate and fast dose calculation
Treatment optimization for energy-and intensity-modulated proton therapy (EIMPT)
For detailed dose calculation and IMPT treatment optimization, please see:
Jinsheng Li, et al., TU-C-BRA-06
Bilal Shahine et al, TU-C-BRA-07