Evaluation of neutron- and proton-induced nuclear data on 27Al up to 2 GeV

We have evaluated neutron and proton nuclear data of 27 Al for energies up to 2 GeV. The best set of optical model parameters were obtained from 20MeV for neutrons and from reaction threshold for protons up to 250 MeV with the phenomenological non-relativistic potential forms incorporating effects of the dispersion relationship and results of the Dirac phenomenology. The transmission coefficients for neutrons and protons derived from the optical models were fed into the GNASH code system to calculate angle-energy correlated emission spectra for light ejectiles and gamma rays. For energies between 250 MeV and 2 GeV, the total, reaction and elastic scattering cross sections were evaluated by an empirical fit and recent systematics. Emitted nucleon and pion spectra were estimated by use of QMD+SDM (Quantum Molecular Dynamics+Statistical Decay Model).

[1]  F. Cucinotta,et al.  Universal Parameterization of Absorption Cross Sections , 1999 .

[2]  H. G. Hughes,et al.  Cross-Section Evaluations to 150 MeV for Accelerator-Driven Systems and Implementation in MCNPX , 1999 .

[3]  Detlef Filges,et al.  CROSS SECTIONS FOR THE PRODUCTION OF RESIDUAL NUCLIDES BY LOW- AND MEDIUM-ENERGY PROTONS FROM THE TARGET ELEMENTS C, N, O, MG, AL, SI, CA, TI, V, MN, FE, CO, NI, CU, SR, Y, ZR, NB, BA AND AU , 1997 .

[4]  Maruyama,et al.  Analysis of proton-induced fragment production cross sections by the quantum molecular dynamics plus statistical decay model. , 1996, Physical review. C, Nuclear physics.

[5]  Stephen L. Young,et al.  Technology…The enabler for tomorrow's agile enterprise , 1995 .

[6]  Takada,et al.  Analysis of the (N,xN') reactions by quantum molecular dynamics plus statistical decay model. , 1995, Physical review. C, Nuclear physics.

[7]  G. Morgan,et al.  Differential neutron production cross sections for 597-MeV protons , 1993 .

[8]  Mark B. Chadwick,et al.  Comprehensive nuclear model calculations: Introduction to the theory and use of the GNASH code , 1992 .

[9]  Uhl,et al.  Test of gamma-ray strength functions in nuclear reaction model calculations. , 1990, Physical review. C, Nuclear physics.

[10]  Wang,et al.  Neutron-90Zr mean field from a dispersive optical model analysis. , 1989, Physical review. C, Nuclear physics.

[11]  Kalbach.  Systematics of continuum angular distributions: Extensions to higher energies. , 1988, Physical review. C, Nuclear physics.

[12]  Finlay,et al.  Microscopic optical model analysis of nucleon scattering from light nuclei. , 1985, Physical review. C, Nuclear physics.

[13]  R. Michel,et al.  Measurement and hybrid model analysis of integral excitation functions for proton-induced reactions on vanadium, manganese and cobalt up to 200 MeV , 1985 .

[14]  H. Machner,et al.  Energy and angular distributions of neutrons from 90 MeV proton and 140 MeV alpha-particle bombardment of nuclei , 1983 .

[15]  R. Horisberger,et al.  Measurement of cross sections and asymmetry parameters for the production of charged pions from various nuclei by 585-MeV protons , 1980 .

[16]  M. Suter,et al.  Nuclide production by proton induced reactions on elements (6 <= Z <= 29) in the energy range from 800-MeV to 2600-MeV , 1995 .

[17]  F. Perey,et al.  Compilation of phenomenological optical-model parameters 1954–1975 , 1976 .

[18]  H. D. Ferguson,et al.  NUCLEAR LEVEL DENSITIES IN INTERMEDIATE AND HEAVY NUCLEI. , 1967 .

[19]  A. Poskanzer,et al.  Recoil Study of the Reaction Al 27 (p, 3pn)Na 24 , 1963 .

[20]  A. Poskanzer,et al.  RECOIL STUDY OF THE REACTION Al$sup 27$(p,3pn)Na$sup 2$$sup 4$ , 1963 .