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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 1 Physics we could do with our data and ideas for the future A. Boudard and S. Leray CEA/Saclay, IRFU/SPhN, France
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 2 Hadrontherapy: mainly inclusive data test of available simulation codes/reactions models : FLUKA, GEANT4 (QMD, BIC, INCL…) comparison with other data, at different energies Physics: understanding of reaction mechanism through nearly complete event reconstruction building of more reliable reactions models What are our data interesting for ?
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 3 Build-up of secondary fragments produced by 400 MeV u -1 carbon ion beam in a water phantom From E. Haettner et al., Rad. Prot. Dosim. (2006) Carbon fragmentation (~50% of the C ions) spreading of the dose outside the tumor volume (larger range of light nuclei, lateral spreading, neutrons) Data for hadrontherapy double-differential cross-sections of projectile fragments, charge distributions…
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - O 290MeV/u + C O 400MeV/u + C Cl 1GeV/u + C Fe 500MeV/u + C Beam fragmentation Experiments: C. Zeitlin et al. (http://fragserver.lbl.gov/) (Odd-Even not good enough, especially O-C) Data INCL4.3 + ABLA 0 5 10 15 20 25 30 Fragment charge σ(mb) Fe 3GeV/u + C Data
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 5 12 C (95 A MeV) on 5 mm PMMA Data from B. Braunn et al. GEANT4 calculation using INCL4-HI + Fermi Break-up, BIC and QMD Inclusive cross-sections 7° 17°
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 6 12 C (135 A MeV) + 12 C GEANT4 calculations (From P. Kaitaniemi, PhD thesis) Particle spectra
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 7 Particle spectra Fragmentation of carbon ions at 250 MeV/nucleon J.M. Kidd et al., Phys. Rev. C37 (1988) 2613
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 8 Particle spectra Fragmentation of carbon ions at 1.05 GeV/nucleon Anderson et al., Phys. Rev. C28 (1983) 1224
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 9 Inclusive data Compared to fragmentary existing data, we should have in the same experiment charge (mass?) energy/momentum angle for all(?) types of fragments Necessity to know exactly the capability/limits of our experimental setup (acceptance, thresholds…)
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 10 Tracks reconstructed in emulsion From T. Toshito et al., 2006 IEEE Nuclear Science Symposium Conference Record As complete as possible event reconstruction Reaction mechanism understanding
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 11 study of the different reaction channels breakup into 3 alphas, comparison C/Au targets Reconstruction of the fragmenting remnant by summing up outgoing particles evolution with the violence of the collision dependence with particle multiplicity Reaction mechanism understanding
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 12 study of the different reaction channels breakup into 3 alphas, comparison C/Au targets Reaction mechanism understanding C+C 2.1 GeV/u Harvey et al., PRC 39 (1989) 841
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 13 Reconstruction of the fragmenting remnant by summing up outgoing particles evolution with the violence of the collision dependence with particle multiplicity Reaction mechanism understanding Au+C 1 GeV/u Hauger et al., PRC 57 (1998) 764 Remnant properties as a function of charged particle multiplicity
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - SPALADIN experiment Z=2 emission is dominant IMF emission is dominant Def: IMF= Z≥3 From E. Le Gentil et al., PRL 100 (2008) 022701
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - Comparison to models: INCL4 + different de- excitation models Calculations filtered through GEANT4 Fe (1 AGeV+p) SPALADIN experiment From E. Le Gentil et al., PRL 100 (2008) 022701
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - SPALADIN experiment Correlation Excitation energy / fragment multiplicity From E. Le Gentil PhD Thesis
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - SPALADIN experiment Events with 2 fragments (Z≥3) for different bins of particle multiplicity: Difference between the charges of the two heaviest fragments From E. Le Gentil et al., PRL 100 (2008) 022701
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - PRELIMINARY Decomposition into different de- excitation channels characterized by the number of fragments fragments “fragment = Z ≥ 3” “Zbound = sum of all charges except Z=1” Zbound 1 frag + neutrons1 frag + n + He 2 frag + n + He2 frag + n (NO He) ≥ 3 frag INCL-SMM INCL-ABLA07 INCL-Gemini++ “Shaded zone = experiment” Th. Gorbinet PhD thesis SPALADIN 136 Xe + H (and C) at 1 GeV/u
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - PRELIMINARY Multiplicities Charged particles multiplicity (Except Z=1) Neutron multiplicity Total multiplicity INCL-SMM INCL-ABLA07 INCL-Gemini++ SPALADIN 136 Xe + H (and C) at 1 GeV/u Th. Gorbinet PhD thesis
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - → E*/A ~0.2 MeV→ E*/A ~1.0 MeV → E*/A ~1.9 MeV→ E*/A ~2.8 MeV → E*/A ~3.6 MeV INCL-SMM INCL-ABLA07 INCL-Gemini++ From multiplicity to mean excitation energy (of the pre-fragment) Inclusive cross sections by “mean” excitation energy Zbound PRELIMINARY “Zbound = sum of all charges except Z=1” Zbound Th. Gorbinet PhD thesis
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 21 Coincidence data For our data, it should be possible to study Decomposition of the total reaction cross-section into the various reaction channels Evolution of the channels with violence of collision/impact parameter (from LCP + neutron multiplicities) Reconstruction of the fragmenting nucleus Comparison C+C / C+Au
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- Sylvie Leray – FIRST coll. Meeting, Nov, 2011 - 22 Application motivated He, Li beams for hadrontherapy iron for space applications different energies between 100 and 400 MeV/u Physics motivated iron more interesting for heavy ion model improving comparison with different projectiles Future experiments
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