Deuteroninduced reactions at low and medium energies: Consistent direct and statistical model analyses
B. Project leader
B1. Scientific visibility and prestige
B.1.1. Main research results. Nuclear Data Section/IAEAVienna adopted as recommended data:
 Handbook on Nuclear Activation Data, IAEA, Vienna, 1987, p. 391394; adopted:
 M.Ivascu, M.Avrigeanu and V.Avrigeanu, AtomkernenergieKerntechnik 49,133(1987).
 Reference Input Parameter Library: Handbook for calculations of nuclear reaction data, TECDOC1034, IAEA, Vienna, 1998, p. 41; http://wwwnds.iaea.org/ripl/optical/recommended/:
 adopted: V. Avrigeanu, P.E. Hodgson, and M. Avrigeanu, Phys. Rev. C 49, 2136 (1994).
 Reference Input Parameter Library: Handbook for calculations of nuclear reaction data, TECDOC1034, IAEA, Vienna, 1998, p.91; http://wwwnds.iaea.org/ripl/densities/partial/recommended/
 adopted: M. Avrigeanu and V. Avrigeanu, Comp. Phys. Comm. 112, 191 (1998).
 Reference Input Parameter
Library RIPL3: R. Capote et al., Nucl. Data Sheets 110, 3107 (2009); http://wwwnds.iaea.org/RIPL3/optical/omparameteru.dat:
 adopted αparticle data: M. Avrigeanu et al., At. DataNucl. Data Tables 95, 501 (2009).
 Fusion Evaluated Nuclear Data Library
FENDL 3: M.E. Sawan, Report INDC(NDS)0567, IAEA, Vienna, 2010, p. 11; http://wwwnds.iaea.org/fendl3/index.html:
 adopted deuterondata: M. Avrigeanu et al., Fusion Eng. Design 84, 418422 (2009).
 Joint Evaluated Fission and Fusion File (JEFF): A. Koning et al., JEFF Report 21, OECD, 2006.
Experience gathered within international Programmes:
Programme / Contract / Project
Position
Time period (IAEA/EC contribution)
Experience gathered within other national Programmes:
 CEEXPCD101246, Ctr. CEX200548, http://tandem.nipne.ro/~dante/
 PNIIIDPCE20071885, Ctr. 149/2007, http://tandem.nipne.ro/~vavrig/Projects/PN2P3_149/
(M. Avrigeanu – Project manager)
 PNIIIDPCE2008243, Ctr. 448/2009, http://tandem.nipne.ro/~vavrig/Projects/PN2P3_448/
[with PNII ISI results also at http://www.nipne.ro/research/projects/docs/PN2_IFINHH_2011e.doc]
B.1.2. The visibility of the scientific contributions.
 Temporary academic/research positions:
 Spokesperson SPIRAL2 / NFS / Day1Experiment: Proton and Deuteron Induced Reactions
 Senior Associate, The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy, 2002 – 2007
 Liaison officer between IFINHH and OECD/NEAData Bank, Paris, since 1992, on the basis of own contributions to OECD/NEA Data Bank (Paris), making thus possible the IFIN access to the full NEADB computer code collection (25 code packages requested/obtained from NEADB for other departments of IFIN between 19921998) in various IFINHH areas
 Visiting scientist, Nuclear Physics Laboratory, Oxford University,19901994, 13 months/y
 Visiting scientist, HahnMeitner Institut, Berlin, 20012004, 13 months/year
 Participant at OECD Working Party on
International Evaluation Cooperation of NEA/NSC Subgroup 19 (20012005), Report NEA/WPEC19, OECD, 2006, with results regarded
as (p. 39):
 '... carefully determined model parameters lead to much better results... Generally, the calculations of the local approach are preferred when they are available'.
 NDS/IAEAVienna blind exercise for 56Fe(n,α)53Cr reaction, cf. H. Vonach et al., in: J.K. Dickens
(Ed.), Nuclear Data for Science and Technology, ANS, La Grange Park, 1994, p. 925:
 best agreement vs. ORNLOak Ridge and FEIObninsk, with first data measured at the same time, based on: M. Avrigeanu, M. Ivascu, and V. Avrigeanu, Z. Phys. A 335, 299 (1990).
 Invited lecturer and computer exercise conductor, Workshop on Applied Nuclear Theory and
Nuclear Model Calculations for Nuclear Technology Applications, ICTP, Trieste, 1988:
 M. Avrigeanu et al., in Applied nuclear theory and nuclear model calculations for nuclear technology applications, M.K. Mehta et al. (Eds.), World Scientific, 1989, p. 762849.
 Invited lectures: Int. Conf. Nuclear Reaction Mechanisms,Varenna (‘97, 2000), Int. School Nuclear Physics, Neutron Phys. & Nuclear Energy, Varna (‘95, ’99, 2005, 2009, 2011), Int. Workshop Nuclear Theory, Rila (‘95, ’99, 2005, 2009, 2011), Int. Summer School Nuclear Physics, Predeal (1998, 2006)
 The address of the researcherid.com profile: http://www.researcherid.com/rid/B60682011
 The adastra.ro profile: http://www.adastra.ro/whoswho/view_profile.php?user_id=3020
B2. Curriculum vitae
Name and surname: Marilena AVRIGEANU
Date and place of birth: July 20, 1949, Bucharest
Present academic position:
 Associate Professor, Ph.D., Bucharest University, Physics Department, since July 20, 2000
 Senior Researcher I, Department of Nuclear Physics, 'Horia Hulubei' National Institute for R&D in Physics and Nuclear Engineering (IFINHH), Magurele, Ilfov, Romania
Current address: Str. Reactorului 30, P.O. Box MG6, 077125 Magurele, Ilfov
Phone number, email, web: (+4) 0214046125, mavrig@nipne.ro, http://tandem.nipne.ro/~mavrig/
a) Education, degrees and diplomas
 19671972, Physics license at Bucharest University, Physics Department; Licensed in physics
 19761982, Doctoral program, Institute for Physics and Nuclear Engineering Bucharest; Ph.D.
b) Professional experience, former employers
 Associate Professor, Ph.D., Bucharest University, Physics Department, Bucharest, 2000 
 Senior Researcher I, Department of Nuclear Physics, IFINHH, Magurele, 1999 
 Senior Researcher II, Department of Nuclear Physics, IFINHH, Magurele, 1993  1999
 Senior Researcher III, Department of Nuclear Physics, IFINHH, Magurele, 1990  1993
 Researcher, Department of Applied Nuclear Physics, IFINHH, Magurele, 1977  1990
 Physicist, Department of Nuclear Physics, IFINHH, Magurele, 1975  1977
 Physicist/Assistant Professor, Nuclear Training Centre, Magurele, 1972  1975
c) List of publications and patents (http://www.researcherid.com/rid/B60682011)

V. Avrigeanu and M. Avrigeanu, Analysis of alphainduced reactions on 151Eu below the Coulomb barrier, Phys. Rev. C 83, 017601 (2011).

M. Avrigeanu and V. Avrigeanu, Alphaparticle nuclear surface absorption below the Coulomb barrier in heavy nuclei, Phys. Rev. C 82, 014606 (2010).

M. Avrigeanu and A.M. Moro, Improved deuteron elastic breakup energy dependence via the continuumdiscretized coupledchannels method, Phys. Rev. C 82, 037601 (2010).

M. Avrigeanu and V. Avrigeanu, Additional alphaparticle optical potential tests below the Coulomb barrier, Phys. Rev. C 81, 038801 (2010).

M. Avrigeanu, A.C. Obreja, F.L. Roman, V. Avrigeanu, and W. von Oertzen, Complementary opticalpotential analysis of alphaparticle elastic scattering and induced reactions at low energies, At. Data Nucl. Data Tables 95, 501532 (2009).

M. Avrigeanu, W. von Oertzen, R.A. Forrest, A.C. Obreja, F.L. Roman, and V. Avrigeanu, Analysis of deuteron elastic scattering and induced activation crosssections of light and medium nuclei for IFMIF EVEDA, Fusion Eng. Design 84, 418422 (2009).

G.G. Kiss, P. Mohr, Zs. Fülöp, D. Galaviz, Gy. Gyürky, Z. Elekes, E. Somorjai, A. Kretschmer, K. Sonnabend, A. Zilges, and M. Avrigeanu, High precision 89Y(α,α)89Y scattering at low energies, Phys. Rev. C 80, 045807 (2009).

P. Bem, E. Simeckova, M. Honusek, U. Fischer, S.P. Simakov, R.A. Forrest, M. Avrigeanu, A.C. Obreja, F.L. Roman, and V. Avrigeanu, Low and medium energy deuteroninduced reactions on 27Al, Phys. Rev. 79, 044610 (2009).

M. Avrigeanu and V. Avrigeanu, Alphaparticle optical potential tests below the Coulomb barrier, Phys. Rev. C 79, 027601 (2009).

R. Capote, M. Herman, P. Obložinský, P.G. Young, S. Goriely, T. Belgya, A.V. Ignatyuk, A.J. Koning, S. Hilaire, V.A. Plujko, M. Avrigeanu, O. Bersillon, M.B. Chadwick, T. Fukahori, Zhigang Ge, Yinlu Han, S. Kailas, J. Kopecky, V.M. Maslov, G. Reffo, M. Sin, E.Sh. Soukhovitskii, and P. Talou, RIPL  Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations, Nucl. Data Sheets 110, 31073214 (2009).

M. Avrigeanu, A.A. Filatenkov, R.A. Forrest, M. Herman, A.J. Koning, A.J.M. Plompen, F.L. Roman, and V. Avrigeanu, Fastneutron induced preequilibrium reactions on 55Mn and 63,65Cu at energies up to 40 MeV, Nucl. Phys. A 806, 1539 (2008).

G.G. Kiss, Zs. Fülöp, Gy. Gyürky, Z. Màtè, E. Samorjai, D. Galaviz, S. Muller, A. Zilges, P. Mohr, and M. Avrigeanu, Study of the 89Y(α,α)89Y reaction close to the Coulomb barrier, J. Phys. G: Nucl Part. Phys. 35, 014037 (2008).

P. Pereslavtsev, U. Fischer, S. Simakov, M. Avrigeanu, Evaluation of d+6,7Li data for deuteron incident energies up to 50 MeV, Nucl. Instr. Meth. in Phys. Res. B 266, 35013512 (2008).

U. Fischer, M. Avrigeanu, P. Pereslavtsev, S.P. Simakov, and I. Schmuck, Evaluation and validation of d–Li cross section data for the IFMIF neutron source term simulation, J. Nucl. Mat. 370, 15311536 (2007).

M. Avrigeanu and V. Avrigeanu, Addendum to "Elastic alphascattering on 112Sn and 124Sn at astrophysically relevant energies, Phys. Rev. C 73, 038801 (2006).

M. Avrigeanu, W. von Oertzen, and V. Avrigeanu, On temperature dependence of the optical potential for alphaparticles at low energies, Nucl. Phys. A 764, 246260 (2006).

M. Avrigeanu, W. von Oertzen, U. Fischer, and V. Avrigeanu, Analysis of deuteron elastic scattering on 6,7Li up to 50 MeV, Nucl. Phys. A 759, 327341 (2005).

M. Avrigeanu, W. von Oertzen, A.M. Plompen, V. Avrigeanu, Optical model potentials for αparticles scattering around the Coulomb barrier on A~100, Nucl. Phys. A 723, 104126 (2003).

M. Avrigeanu, G.S. Anagnostatos, A.N. Antonov, and V. Avrigeanu, Elastic scattering as a test of density distributions in 6He and 8He, Int. J. Mod. Phys. E  Nucl. Phys. 11, 249264 (2002).

M. Avrigeanu, A.N. Antonov, H. Lenske, and I. Stetcu, Effective interactions for multistep processes, Nucl. Phys. A 693, 616629 (2001).

I.V. Krouglov, M. Avrigeanu, and W. von Oertzen, Two–neutron elastic transer 4He(6He,4He)6He at E=151 MeV, Eur. Phys. J. A 12, 399404 (2001).

G.S. Anagnostatos, A. Vahlas, J. Giapitzakis, A.N. Antonov, and M. Avrigeanu, Light exotic nuclei: A new explanation of halo, Yad. Fiz. 64, 13041310 (2001).

M. Avrigeanu, G.S. Anagnostatos, A.N. Antonov, and J. Giapitzakis, On dynamics of twoneutron transfer reactions with the Borromean nucleus 6He, Phys. Rev. C 62, 017001 (2000).

M.B. Chadwick, F.S. Dietrich, A.K. Kerman, A.J. Koning, S.M. Grimes, M. Kawai, G. Love, M. Herman, F. Petrovich, G. Walker, Y. Watanable, H. Wolter, M. Avrigeanu, E. Betak, S. Chiba, J.P. Delaroche, E. Gadioli, S. Hilaire, M. Hussein, T. Kawano, R. Lindsay, A. Marcinkowski, B. Marianski, M. Mustafa, E. Ramstrom, G. Reffo, W.A. Richter, M.A. Ross, and S. Yoshida, Open problems in quantummechanical approaches to multistep direct nuclear reactions, Acta Phys. Slovaca 45, 617624 (1999).

M. Avrigeanu and V. Avrigeanu, Partial level densities for nuclear data calculations, Comp. Phys. Comm. 112, 191226 (1998).

A. Harangozo, I. Stetcu, M. Avrigeanu, and V. Avrigeanu, Particlehole state densities with nonequidistant singleparticle levels, Phys. Rev. C 58, 295306 (1998).

M. Avrigeanu, A. Harangozo, V. Avrigeanu, and A.N. Antonov, Average strength of the effective interaction in multistep direct reactions, Phys. Rev. C 56, 16331636 (1997).

K.A. Pavlova, M. Avrigeanu, and A.N. Antonov, Shortrange nucleon correlations in the semiclassical nuclear models, J. Phys. G: Nucl.Part.Phys. 23, 7785 (1997).

M. Avrigeanu, A. Harangozo, V. Avrigeanu, and A.N. Antonov, Nuclear surface localization of preequilibrium reactions at low energies, Phys. Rev. C 54, 25382546 (1996).

M. Avrigeanu, V. Avrigeanu, A.N. Antonov, M.B. Chadwick, P.E. Hodgson, M.V. Stoitsov, Pauliblocking effects in neutronalpha reactions, J. Phys. G: Nucl. Part. Phys. 21, 837846 (1995).

M. Avrigeanu, A. Harangozo, V. Avrigeanu, and A.N. Antonov, Interplay of surface effects and gradual absorption in multistep reaction calculations, Acta Phys. Slovaca 45, 617624 (1995).

M. Avrigeanu, V. Avrigeanu, Energydependent singleparticle state density effects in the hybrid model of preequilibrium nuclear reactions, J. Phys. G: Nucl. Part. Phys. 20, 613635(1994).

V. Avrigeanu, P.E. Hodgson, and M. Avrigeanu, Global optical potentials for emitted alpha particles, Phys. Rev. C 49, 21362140 (1994).

M. Avrigeanu, P.E. Hodgson and A.J. Koning, Semiclassical and quantummechanical preequilibrium neutron emission, J. Phys. G: Nucl. Part. Phys. 19, 745756 (1993).

M. Avrigeanu, M. Ivascu, and V. Avrigeanu, Nuclear level densities below 40 MeV excitation energy in the mass region A=50, Z. Phys. A 335, 299313 (1990).

M. Avrigeanu, D. Bucurescu, M. Ivascu, G. Semenescu, and V. Avrigeanu, On the overlap of the preequilibrium and direct reaction models, J. Phys. G: Nucl. Phys. 15, L241L247 (1989).

M. Avrigeanu and V. Avrigeanu, Consistent exciton state and nuclear level densities, J. Phys. G: Nucl. Phys. 15, L261L267 (1989).

M. Avrigeanu, M. Ivascu, and V. Avrigeanu, Preequilibrium emission in neutron induced reactions on 54,56Fe, Z. Phys. A 329, 177187 (1988).

D. Bucurescu, G. Constantinescu, M. Ivascu, N.V. Zamfir, M. Avrigeanu, and D. Cutoiu, Evidence for a g9/2 decoupled band in Y85, J. Phys. G: Nucl. Phys. 7, 667672 (1981).

D. Bucurescu, G. Constantinescu, M. Ivascu, N.V. Zamfir, and M. Avrigeanu, J. Phys. G: Nucl. Phys. 7, 399413 (1981).

M. Avrigeanu, V. Avrigeanu, D. Bucurescu, G. Constantinescu, M. Ivascu, D. Pantelica, M. Tanase, N.V. Zamfir, Lifetime measurements in 86Zr, J. Phys. G: Nucl.Phys. 4, 261268 (1978).

M. Ivascu, D. Bucurescu, D. Popescu, V. Avrigeanu, G. Semenescu, and M. Avrigeanu, Nucl. Phys. A 225, 357364 (1974).
Software Products

M. Avrigeanu and V. Avrigeanu, Computer code PLD, Catalogue Identifier ADIK (1998), Comp. Phys. Comm. Program Library, The Queen’s University of Belfast, N. Ireland.

M. Avrigeanu and V. Avrigeanu, Computer code system STAPREH95, RSICC Index PSR325 (1996), RSIC Newsletter No. 394, 1 (1998), Radiation Safety Information Computational Center (RSICC), Oak Ridge, Tennessee, US.

M. Avrigeanu and V. Avrigeanu, Computer code system STAPREH, RSIC Index PSR325 (1993), RSIC Newsletter No. 341, 3 (1993), RSICC, Oak Ridge, Tennessee, US.

M. Avrigeanu and V. Avrigeanu, Computer code system DWUCK4 (INPEBucharest local version), NEADB Index: NESC9872/09 (1993), News NEA Data Bank 17, 22 (1995), OECD/NEA Data Bank, Paris.

M. Avrigeanu, M. Ivascu, and V. Avrigeanu, Computer code system STAPREH, NEADB Index: IAEA0971/03 (1988), News NEA Data Bank 17, 25 (1995), OECD/NEA Data Bank, Paris.
d) Hirsch index and the total number of citations, according to Web of Science: hindex=13
Sum of the Times Cited: 487, Last Updated: 04/23/2011
e) The address of the researcherid.com profile: (http://www.researcherid.com/rid/B60682011)
B3. Scientific contributions from the period 20012011

M. Avrigeanu, W. von Oertzen, A.M. Plompen, V. Avrigeanu, Optical model potentials for αparticles scattering around the Coulomb barrier on A~100, Nuclear Physics A 723, 104126 (2003)

M. Avrigeanu, W. von Oertzen, and V. Avrigeanu, On temperature dependence of the optical potential for alphaparticles at low energies, Nuclear Physics A 764, 246260 (2006)

M. Avrigeanu, W. von Oertzen, U. Fischer, and V. Avrigeanu, Analysis of deuteron elastic scattering on 6,7Li up to 50 MeV, Nuclear Physics A 759, 327341 (2005)

M. Avrigeanu, A.C. Obreja, F.L. Roman, V. Avrigeanu, and W. von Oertzen, Complementary opticalpotential analysis of alphaparticle elastic scattering and induced reactions at low energies, Atomic Data and Nuclear Data Tables 95, 501532 (2009)

M. Avrigeanu, A.N. Antonov, H. Lenske, and I. Stetcu, Effective interactions for multistep processes, Nuclear Physics A 693, 616629 (2001)
No. of citations: 3
DOI: 10.1016/S03759474(01)008107
Summary. The reliability of realistic M3Y effective NN interactions to describe multistep direct (MSD) processes is proved by analyzing the related real optical potentials (OP). This trial is done in order to overcome the uncertainties of the effective NNinteraction strength V0 obtained by fit of experimental data. The microscopic OP for nucleonnucleus scattering at energies <50 MeV was calculated using nucleonic and mesonic form factors. It results that the strongly simplified model interactions used in MSD reaction theory neglect important dynamical details of such processes.

M. Avrigeanu and V. Avrigeanu, Alphaparticle optical potential tests below the Coulomb barrier, Physical Review C 79, 027601 (2009)

M. Avrigeanu and V. Avrigeanu, Addendum to "Elastic alphascattering on 112Sn and 124Sn at astrophysically relevant energies, Physical Review C 73, 038801 (2006)

M. Avrigeanu and V. Avrigeanu, Additional alphaparticle optical potential tests below the Coulomb barrier, Physical Review C 81, 038801 (2010)

M. Avrigeanu and V. Avrigeanu, Alphaparticle nuclear surface absorption below the Coulomb barrier in heavy nuclei, Physical Review C 82, 014606 (2010)

M. Avrigeanu and A.M. Moro, Improved deuteron elastic breakup energy dependence via the continuumdiscretized coupledchannels method, Physical Review C 82, 037601 (2010)
No. of citations: 0
DOI: 10.1103/PhysRevC.82.037601
Summary. Experimental elasticscattering angular distributions for deuteron interaction with 63Cu and 93Nb targets are compared with calculations performed within the continuumdiscretized coupledchannels (CDCC) method, coupling to breakup channels being explicitly considered. The calculated elastic breakup is compared with the prediction of empirical parametrization for a wide energy range. It results that CDCC method permits the assessment of empirical parametrizations.he OMP parameters obtained by analysis of only αparticle elastic scattering at higher energies.
No. of citations: 22
DOI: 10.1016/S03759474(03)01159X
Summary. The doublefolding (DF) formalism of the αnucleus optical potential is used and appropriate effective nucleonnucleon (NN) interaction and alphaparticle density distribution at low energies are obtained by analysis of the αα scattering at energies <35 MeV. Next a semimicroscopic DF analysis for the αparticle elastic scattering on A~100 nuclei at energies <32 MeV was carried out. The energydependent phenomenological imaginary optical model potential was obtained making also use of the dispersive correction to the microscopic real potential.
No. of citations: 7
DOI: 10.1016/j.nuclphysa.2005.10.001
Summary. Within the double folding (DF) formalism of the alphanucleus optical potential, used previously for a semimicroscopic analysis of the αparticle elastic scattering on A~100 nuclei at energies <32 MeV, effects due to changes of the nuclear density at finite temperature are considered. Parameterizations of the DF real potential as well as of regional phenomenological potential were used in the (n,α) reaction study for the target nuclei 92Mo, 95Mo, 98Mo, 100Mo.
No. of citations: 5
DOI: 10.1016/j.nuclphysa.2005.05.153
Summary. Analysis of the elastic scattering of deuterons on 6,7Li for energies <50 MeV was carried out using a phenomenological optical potential (OP). Energydependent average parameters of the OP were obtained in the analysis of the corresponding real and imaginary volume integrals, pointing out an "anomalous" behavior of the real potential when the imaginary part approaches zero. The coupled reaction channels method was also used to describe the 6Li(d,d0)6Li experimental angular distributions and proves the present OP reliability, at variance with global OP extrapolation.
No. of citations: 5
DOI: 10.1016/j.adt.2009.02.001
Summary. A previously derived semimicroscopic analysis based on the Double Folding Model, for alphaparticle elastic scattering on A similar to 100 nuclei at energies below 32 MeV, is extended to medium mass A~50120 nuclei and energies from similar to 13 to 50 MeV. The energydependent phenomenological imaginary part for this semimicroscopic optical model potential was obtained including the dispersive correction to the microscopic real potential, and used within a concurrent phenomenological analysis of the same data basis. An ultimate assessment of (α,γ), (α,n), and (α,p) reaction cross sections considered target nuclei from 45Sc to 118Sn and incident energies <12 MeV.
No. of citations: 3
DOI: 10.1103/PhysRevC.79.027601
Summary. The results of two recent papers concerning (α,γ) and (α,n) reaction cross sections close to the reaction thresholds are discussed with regard to predictions of a recent αparticle regional optical potential (OP). The new measured cross sections are rather well described especially for the dominant reaction channels. Particular features of the αparticle OP below Coulomb barrier explain the failure of a former regional OP obtained by analysis of elastic scattering at higher energies.
No. of citations: 1
DOI: 10.1103/PhysRevC.73.038801
Summary. We show that new experimental data reported by Galaviz et al. [Phys. Rev. C 71, 065802 (2005)] can be used to improve a previous optical potential global parameter set, employing the corresponding former local parameter basis as well as the parameter sets obtained by a similar analysis of the new data.
No. of citations: 0
DOI: 10.1103/PhysRevC.81.038801
Summary. New results of (α,γ) and (α,n) reaction cross section measurements close to the reaction thresholds support the setting up of recent parameters of the αparticle optical model potential (OMP) below the Coulomb barrier. Particular features of the αparticle optical potential at energies below the Coulomb barrier explain the failure of using t
No. of citations: 0
DOI: 10.1103/PhysRevC.82.014606
Summary. An analysis of available αparticleinduced reaction cross sections on nuclei in the mass number range 121<A<197, below the Coulomb barrier, is carried out. An optical potential that describes the αparticle elastic scattering at low energies as well and both elasticscattering and reaction data for 45<A<124 was thus obtained. The energy dependence of the surface imaginary potential depth is proved to be essential for understanding of αparticle interaction at these energies.