Terry Kammash - NASA's Institute for Advanced Concepts

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Accomplishments Thus Far2. Experimentally validatedE i ~ √IEi~ √λ3. Indirectly established relationshipsrelating E i to R and dependence on η.More work is needed in this area!Just purchased 5 parabolic mirrors toinvestigate thoroughly dependence ofE i and total number of ejectedparticles on R.
Accomplishments Thus Far4. Experimentally established dependence ofE i on target thickness “t”, optimized t≈10λ5. Experimentally established conditions <strong>for</strong>filamentation instabilityP =5P c =5[17(ω o /ω p ) 2 GW]4Tc/ω p a 0 ≤2Rc = speed of lighta 0 =8.5×10 -10 λ [µm] I 1/2 [W/cm 2 ]ω p =plasma frequencyR= radius of focal spot
Page 1 and 2: Ultrafast Laser-DrivenPlasma for Sp
Page 3 and 4: Front Surface Deuteron Acceleration
Page 5 and 6: Material Effect on ProtonProduction
Page 7 and 8: (a) 4 µm, (b) 12.5 µm, (c) 25 µm
Page 9 and 10: Magnetic Field from Simulation vs.P
Page 11 and 12: Protons From Front Surface1614Maxim
Page 13 and 14: Deuteron AccelerationDeuteron coati
Page 15 and 16: Peak Proton Energyvs. Spot Size6000
Page 17 and 18: Spot Size Comparison120Total Intens
Page 19 and 20: Plume Evolution in 1 Torr H 2Ambien
Page 21 and 22: Target GeometryWire orientation:~10
Page 23 and 24: Proton RadiographyThin Film TargetT
Page 25 and 26: Proton Acceleration Summary• Simu
Page 27 and 28: Physics ContinuedEnergy conservatio
Page 29 and 30: ContinuedThe Ion EnergyE i =ZE b =Z
Page 31 and 32: Two Asymptotic Regimes forIon Accel
Page 33 and 34: Relationship Between Ion Energy,Las
Page 35 and 36: An ExampleI=10 21 W/cm 2η=0.10R=2.
Page 37 and 38: Plasma Expansion in VacuumIon accel
Page 39: Accomplishments Thus Far1. Generate

Terry Kammash - NASA's Institute for Advanced Concepts

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