Measurement and hybrid model analysis of integral excitation functions for proton-induced reactions on vanadium, manganese and cobalt up to 200 MeV

Michel, R.; Peiffer, F.; Stück, R.

doi:10.1016/0375-9474(85)90441-5

Cited by 85 publications

(34 citation statements)

References 29 publications

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“…23. The calculated results are in good agreement with experimental data [66,68,76,[78][79][80][81]83,84,[86][87][88][89] for incident proton energy below 250 MeV. The calculated results for nat Fe(p, x) 55 Co reaction cross-sections are larger than experimental data above 20.0 MeV as shown in Fig.…”

Section: Theoretical Results and Analysissupporting

confidence: 92%

“…The experimental data [62] 56 Co reaction cross-section (solid line) compared with experimental data (symbols) [62,64,66,68,70]. x) 55,56,57,58 Co, nat Fe(p, x) 54 Mn and nat Fe(p, x) 51 Cr reaction cross-sections were given in [66,68,76,[78][79][80][81][82][83][84][85][86][87][88][89][90]. The cross-section for nat Fe(p, x) 58 Co and nat Fe(p, x) 57 Co reactions are from 58 Fe(p, n) 58 Co, 58 Fe(p, 2n) 57 Co and 57 Fe(p, n) 57 Co reactions, the calculated results are in good agreement with experimental data below incident proton energy 250.0 MeV.…”

Section: Theoretical Results and Analysismentioning

confidence: 99%

“…Calculated nat Fe(p, x)51 Cr reaction cross-sections (solid line) compared with experimental data (symbols)[78][79][80][81][82][83][85][86][87]89].…”

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confidence: 99%

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Calculation and evaluation of cross-sections for p+54,56,57,58,natFe reactions up to 250MeV

Han¹,

Yue²,

Guo³

2007

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Theoretical Results and Analysissupporting

confidence: 92%

Section: Theoretical Results and Analysismentioning

confidence: 99%

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Calculation and evaluation of cross-sections for p+54,56,57,58,natFe reactions up to 250MeV

Han¹,

Yue²,

Guo³

2007

Nuclear Instruments and Methods in Physics Research Section B:

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“…comm. ) has been shown to be quite successful (Michel et al, 1985b;Michel and Nagel, 1997, and references therein). However, the capability of this and all other existing models to predict cross sections does not fulfill the requirements of accuracy needed for a cosmochemical application.…”

Section: A Priori Calculation Of Production Ratesmentioning

confidence: 99%

Simulation of the interaction of galactic cosmic‐ray protons with meteoroids: On the production of radionuclides in thick gabbro and iron targets irradiated isotropically with 1.6 GeV protons

Leya

Lange

Lüpke

et al. 2000

Meteorit & Planetary Scien

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— Thick spherical targets made of gabbro (R = 25 cm) and of steel (R = 10 cm) were irradiated isotropically with 1.6 GeV protons at the Saturne synchrotron at Laboratoire National Saturne (LNS)/CEN Saclay in order to simulate the interaction in space of galactic cosmic‐ray (GCR) protons with stony and iron meteoroids. Proton fluences of 1.32 × 1014 cm−2 and 2.45 × 1014 cm−2 were received by the gabbro and iron sphere, respectively, which corresponds to cosmic‐ray exposure ages of about 1.6 and 3.0 Ma. Both artificial meteoroids contained large numbers of high‐purity target foils of up to 28 elements at different depths. In these individual target foils, elementary production rates of radionuclides and rare gas isotopes were measured by x‐ and γ‐spectrometry, by low‐level counting, accelerator mass spectrometry (AMS), and by conventional rare gas mass spectrometry. Also samples of the gabbro itself were analyzed. Up to now, for each of the experiments, ∼500 target‐product combinations were investigated of which the results for radionuclides are presented here. The experimental production rates show a wide range of depth profiles reflecting the differences between low‐, medium‐, and high‐energy products. The influence of the stony and iron matrices on the production of secondary particles and on particle transport, in general, and consequently on the production rates is clearly exhibited by the phenomenology of the production rates as well as by a detailed theoretical analysis. Theoretical production rates were calculated in an a priori way by folding depth‐dependent spectra of primary and secondary protons and secondary neutrons calculated by Monte Carlo techniques with the excitation functions of the underlying nuclear reactions. Discrepancies of up to a factor of 2 between the experimental and a priori calculated depth profiles are attributed to the poor quality of the mostly theoretical neutron excitation functions. Improved neutron excitation functions were obtained by least‐squares deconvolution techniques from experimental thick‐target production rates of up to five thick‐target experiments in which isotropic irradiations were performed. A posteriori calculations using the adjusted neutron cross sections describe the measured depth profiles of all these simulation experiments within 9%. The thus validated model calculations provide a basis for reliable physical model calculations of the production rates of cosmogenic nuclides in stony and iron meteorites as well as in lunar samples and terrestrial materials.

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“…The statistical model part of ALICE/LIVERMORE-82 can account for a large variety of reaction types (26,27). Besides evaporation of neutrons and protons (according to Weiskopf and Ewing), clusters such as deuterons and a particles can be considered.…”

Section: Resultsmentioning

confidence: 99%

Preequilibrium emission of multiparticles in α-induced reactions with ⁵⁵Mn nucleus

Rizvi¹,

Bhardwaj²,

Ansari³

et al. 1989

Can. J. Phys.

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a-induced reactions on the target element Mn were investigated from 7 to 60 MeV, using the stacked-foil activation technique and the Ge(Li) y-ray spectroscopy method. Six excitation functions for the reaction residues 58Co, 57Co, ' T O , 54Mn, and 52Wn were measured, of which 55Mn (a,a3n) 52fMn was measured for the first time. The experimental data were compared with calculations considering equilibrium as well as preequilibrium reactions according to the geornetrydependent hybrid model of Blann (see Phys. Rev. Lett. 27, 337 (1971); 27, 700E (1971); 27, 1550E (1971). The initial exciton number, n, = 4, with different configurations was tested. It was found that the configuration (2n+2p +oh) appears to give a good fit to the experimental data.On a Ctudie les reactions a-induites sur des cibles de mangankse entre 7 et 60 MeV, en utilisant la technique d'activation de feuillets empiles et la spectroscopie gamma avec Ge(Li). Six fonctions d'excitation, avec "Co, 5 7 C~, 5 6 C~, "CO, 54Mn et "Mn comme noyaux rksiduels, ont Cte rnesurkes, I'une d'entre elles, "Mn ( a , a3n) 52%ln, pour le premikre fois. Les donnkes experimentales ont CtC cornparees avec les valeurs calculees, en considkrant les reactions d'equilibre aussi bien que celles de pre-Cquilibre, suivant le modele hybride dependant de la geometric de Blann voir Phys. Rev. Lett. 27, 337 (1971); 27, 700E (1971); 27, 1550E (1971. On a test6 differentes configurations avec le nombre initial d'excitons 11, = 4. On a trouv6 que la configuration (2n + 2p + oh) semble donner un bon ajustement avec les donn6es exptrimentales.[Traduit par la revue]Can.

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Measurement and hybrid model analysis of integral excitation functions for proton-induced reactions on vanadium, manganese and cobalt up to 200 MeV

Cited by 85 publications

References 29 publications

Calculation and evaluation of cross-sections for p+54,56,57,58,natFe reactions up to 250MeV

Calculation and evaluation of cross-sections for p+54,56,57,58,natFe reactions up to 250MeV

Simulation of the interaction of galactic cosmic‐ray protons with meteoroids: On the production of radionuclides in thick gabbro and iron targets irradiated isotropically with 1.6 GeV protons

Preequilibrium emission of multiparticles in α-induced reactions with ⁵⁵Mn nucleus

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Measurement and hybrid model analysis of integral excitation functions for proton-induced reactions on vanadium, manganese and cobalt up to 200 MeV

Cited by 85 publications

References 29 publications

Calculation and evaluation of cross-sections for p+54,56,57,58,natFe reactions up to 250MeV

Calculation and evaluation of cross-sections for p+54,56,57,58,natFe reactions up to 250MeV

Simulation of the interaction of galactic cosmic‐ray protons with meteoroids: On the production of radionuclides in thick gabbro and iron targets irradiated isotropically with 1.6 GeV protons

Preequilibrium emission of multiparticles in α-induced reactions with 55Mn nucleus

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Preequilibrium emission of multiparticles in α-induced reactions with ⁵⁵Mn nucleus