20 MeV (IRDF) Surrogate reactions (d,pɤ), (d,pf) on Th, U,… Deuteron breakup BREAKUP [M. Avrigeanu, V. Avrigeanu] - total, elastic and inelastic breakup c.s.: M. Avrigeanu et al., Fusion. Eng. Design, 84, 418 (2009); - inelastic breakup enhancements : P. Bém et al., Phys. Rev. C 79, (2009); E. Šimečková et al., Phys. Rev. C 84, ( 2011; M. Avrigeanu et al., Phys. Rev. C 85, (2012); 88, (2013); 89, (2014); 92, 02160(R) (2015), 94, (2016). Direct reactions FRESCO (Version FRES 2.9, September 2011) [I.J. Thompson] - breakup: elastic component (CDCC): M. Avrigeanu, A.M. Moro, Phys. Rev. C 82, ( 2010). - elastic transfer: weakly bound systems: M. Avrigeanu et al., Nucl. Phys. A 759, 327 ( 2005). - stripping & pick-up: (d,p), (d,n), (d,t ), (d,α) Composite system equilibration STAPRE-H95 [V. Avrigeanu, M. Avrigeanu] (updated) - OMP:SCAT2000; preequilibrium: GDH / EXCITON; evaporation: Hauser-Feshbach TALYS [A. Koning, S. Hilaire, M. Duijvestijn] - OMP:ECIS’97; breakup, preequilibrium: MSD / EXCITON; evaporation: Hauser-Feshbach Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, th Association EURATOM-MEdC Days Meeting, Ramnicu Valcea, Progress Meeting Specifc Grant F4E-GRT : , Paris JEFF/EFF Meeting, OECD/NEA-DB,"> 20 MeV (IRDF) Surrogate reactions (d,pɤ), (d,pf) on Th, U,… Deuteron breakup BREAKUP [M. Avrigeanu, V. Avrigeanu] - total, elastic and inelastic breakup c.s.: M. Avrigeanu et al., Fusion. Eng. Design, 84, 418 (2009); - inelastic breakup enhancements : P. Bém et al., Phys. Rev. C 79, (2009); E. Šimečková et al., Phys. Rev. C 84, ( 2011; M. Avrigeanu et al., Phys. Rev. C 85, (2012); 88, (2013); 89, (2014); 92, 02160(R) (2015), 94, (2016). Direct reactions FRESCO (Version FRES 2.9, September 2011) [I.J. Thompson] - breakup: elastic component (CDCC): M. Avrigeanu, A.M. Moro, Phys. Rev. C 82, ( 2010). - elastic transfer: weakly bound systems: M. Avrigeanu et al., Nucl. Phys. A 759, 327 ( 2005). - stripping & pick-up: (d,p), (d,n), (d,t ), (d,α) Composite system equilibration STAPRE-H95 [V. Avrigeanu, M. Avrigeanu] (updated) - OMP:SCAT2000; preequilibrium: GDH / EXCITON; evaporation: Hauser-Feshbach TALYS [A. Koning, S. Hilaire, M. Duijvestijn] - OMP:ECIS’97; breakup, preequilibrium: MSD / EXCITON; evaporation: Hauser-Feshbach Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, th Association EURATOM-MEdC Days Meeting, Ramnicu Valcea, Progress Meeting Specifc Grant F4E-GRT : , Paris JEFF/EFF Meeting, OECD/NEA-DB,">

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Marilena AvrigeanuMarilena Avrigeanu

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1 Marilena AvrigeanuMarilena Avrigeanu
Vlad Avrigeanu Vlad Avrigeanu Marilena AvrigeanuMarilena Avrigeanu Effects of direct interactions on deuteron surrogate reactions Horia Hulubei National Institute for Physics & Nuclear Engineering, Bucharest, Romania Horia Hulubei National Institute for Physics & Nuclear Engineering, Bucharest, Romania"Horia Hulubei" National Institute for Physics and Nuclear Engineering, Bucharest Marilena Avrigeanu, Vlad Avrigeanu, and C. Costache Horia Hulubei National Institute for Physics & Nuclear Engineering (IFIN-HH), Bucharest, Romania Reaction mechanisms in deuteron interactions 1. CALCULATIONS’ TOOLS: Nuclear Models & CODES 2. Update parametrization for Deuteron Breakup (BU) 3. Direct Reactions (DR) : stripping & pick-up 4. Effects of BU & DR on Deuteron Surrogate Reactions 5. Conclusions Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 4th Association EURATOM-MEdC Days Meeting, Ramnicu Valcea, Progress Meeting Specifc Grant F4E-GRT : , Paris JEFF/EFF Meeting, OECD/NEA-DB, 1 1

2 Marilena AvrigeanuMarilena Avrigeanu
Vlad Avrigeanu Vlad Avrigeanu CALCULATIONS’ TOOLS: Nuclear Models & CODES Marilena AvrigeanuMarilena Avrigeanu Horia Hulubei National Institute for Physics & Nuclear Engineering, Bucharest, Romania"Horia Hulubei" National Institute for Physics and Nuclear Engineering, Bucharest Horia Hulubei National Institute for Physics & Nuclear Engineering, Bucharest, Romania Motivation: Nuclear Data Needs ITER, IFMIF, SPIRAL2, Breeder Reactors REQUIRED deuteron reaction cross sections measurements & calculations (E ~ 50 MeV): Al, Cu, Nb, Co, Mn, Fe, Cr, Ni, C…Th, U, Reliable gas production cross-section data (H, He) Dosimetry data file for E > 20 MeV (IRDF) Surrogate reactions (d,pɤ), (d,pf) on Th, U,… Deuteron breakup BREAKUP [M. Avrigeanu, V. Avrigeanu] - total, elastic and inelastic breakup c.s.: M. Avrigeanu et al., Fusion. Eng. Design, 84, 418 (2009); - inelastic breakup enhancements : P. Bém et al., Phys. Rev. C 79, (2009); E. Šimečková et al., Phys. Rev. C 84, ( 2011; M. Avrigeanu et al., Phys. Rev. C 85, (2012); 88, (2013); 89, (2014); 92, 02160(R) (2015), 94, (2016). Direct reactions FRESCO (Version FRES 2.9, September 2011) [I.J. Thompson] - breakup: elastic component (CDCC): M. Avrigeanu, A.M. Moro, Phys. Rev. C 82, ( 2010). - elastic transfer: weakly bound systems: M. Avrigeanu et al., Nucl. Phys. A 759, 327 ( 2005). - stripping & pick-up: (d,p), (d,n), (d,t ), (d,α) Composite system equilibration STAPRE-H95 [V. Avrigeanu, M. Avrigeanu] (updated) - OMP:SCAT2000; preequilibrium: GDH / EXCITON; evaporation: Hauser-Feshbach TALYS [A. Koning, S. Hilaire, M. Duijvestijn] - OMP:ECIS’97; breakup, preequilibrium: MSD / EXCITON; evaporation: Hauser-Feshbach Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 4th Association EURATOM-MEdC Days Meeting, Ramnicu Valcea, Progress Meeting Specifc Grant F4E-GRT : , Paris JEFF/EFF Meeting, OECD/NEA-DB, 2 2

3 E: [15-80] MeV E: [10-30] MeV Marilena Avrigeanu Marilena Avrigeanu
E: [15-80] MeV E: [10-30] MeV Marilena Avrigeanu Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 3

4 Warning for d-surrogates
DIRECT INTERACTION MECHNISMS : d+238U INTERACTION d-OMP: Haixia-Cai, Phys. Rev. C73, (2006) Ed=15 MeV: 1-σDI/σR =0.124 BU dominance Warning for d-surrogates analyzed in CN frame t-OMP: Xiaohua et al. Nucl.Phys. A789, 103 (2007) p-OMP: Capote-Soukhovitski, J. Nucl. Sc.&Tech 45, 333 (2008) Marilena Avrigeanu Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 4

5 SURROGATE REACTIONS: STRONG EFFECTS OF THE DEUTERON BREAKUP
inelastic breakup enhancement 238U(nBF,ɤ)239U CN mechanism, too restrictive frame for d-surrogate & LARGE leakage of d flux through BU + DR before CN formation Marilena Avrigeanu Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 5

6 inelastic breakup enhancement
SURROGATE REACTIONS: STRONG EFFECTS OF THE DEUTERON BREAKUP test of d-surrogate EXCEPT the Surrogate Ratio Method, where the effects of BU & DR are diminished surrogate reaction: 232Th(d,pɤ)233Th Ed=12 MeV Ep : [ ] MeV; θp :[ 124o -138o] inelastic breakup enhancement 232Th(nBF,ɤ)233Th 233Th*: BU inelastic enh Th(nbreakup,ɤ) DR (stripping) Th(d,p) CN Th(d,p) & NOT CONSIDERED : LARGE leakage of d flux flux through BU before CN formation Marilena Avrigeanu 14th Int. Conf. on Nuclear Reactions Mechanisms, June 15-19, 2015, Varenna, Italy

7 ROLE OF DIRECT REACTIONS: STRIPPING & PICK-UP
Important for the first-chance emitted particle Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016

8 BREAKUP ENHANCEMENT: Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016

9 CONCLUSIONS deuteron induced reactions
Marilena Avrigeanu CONCLUSIONS "Horia Hulubei" National Institute for Physics and Nuclear Engineering, Bucharest Thank you! Nuclear Reactions studies based on deuteron induced reactions should consider BREAKUP & STRIPPING / PICK-UP EFFECTS DIRECT INTERACTIONS (DI) effects to d interactions BREAKUP: DOMINANT for heavy targets at Ed~VC BREAKUP ENHANCEMENT of activation c.s. (d,t) pick-up exclusive contribution at low-energy EF part PE & EVAPORATION cross sections corrected for initial flux leakage towards DIRECT INTERACTIONS UPDATE FOR DEUTERON SURROGATE MODEL Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 5th Workshop on Nuclear Level Density & Gamma Strength, Oslo, May , 2015International Workshop in Theoretical Nuclear Physics, June 2014, Rila, Bulgaria 9

10 Marilena Avrigeanu Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 10

11 BREAKUP SYSTEMATICS Marilena Avrigeanu Marilena Avrigeanu
ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 11

12 Corrected Pɤ by d-flux leakage through DI (frac=0.124)
Marilena Avrigeanu Marilena Avrigeanu Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 ND2016, / Bruges Belgium 12 12

13 Breakup versus Stripping
BU +ST+PE+CN mechanisms CN Ed =15 MeV (C.M. ~ 14 MeV) BU Stripping (ST) BU: deuteron breakup deuteron binding energy: Bd=2.225 MeV εpmax = Ed - Bd ~ 11.8 MeV BUthreshold ~ 11.8 MeV PE ST: deuteron stripping (d,p) Q Al(d,p) = 5.5 MeV εpmax ~ Ed + Q Al(d,p) =19.5 MeV Stripping energy regions Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016

14 ROLE OF THE DIRECT PROCESSES IN DEUTERON INTRACTIONS
Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016

15 Marilena Avrigeanu Marilena Avrigeanu ECT* Workshop: Three-body systems in reactions with rare isotopes, 3-7 October, 2016 15

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