Search Results

You are looking at 1 - 7 of 7 items for

  • Author or Editor: O. Capurro x
  • Refine by Access: All Content x
Clear All Modify Search

Abstract  

Excitation functions for the production of194Au,195(m+g)Au,196(m+g)Au,198mAu,195gAu and199Au were determined experimentally. In addition, the yields of thick targets of these products were calculated and a comparison between the cross sections obtained using the hybrid model of pre-equilibrium reactions in combination with the statistical model of compound nucleus is presented. The method of activation of metallic foils was employed. The irradiations were performed in the internal beam of the isochronous cyclotron at Karlsruhe (FRG) with -particles at 90 MeV. Gamma-spectrometry by means of an intrinsic Ge detector was used to determine the nuclides produced.

Restricted access

Abstract  

Excitation function measurements are reported for reactions induced in natural nickel with 9–86 Mev -particles. Cumulative cross sections were obtained for the production of60(m+g)Co,58(m+g)Co,57Co and56Co. The stacked-foil method was used to measure product yields by gamma-spectrometry with a Ge intrinsic detector. The experimental data (supplemented with previously reported cross sections by other authors were compared with the calculated values obtained by means of the hybrid model.

Restricted access

Abstract  

The excitation funcntion has been measured for the /, / reaction on197Au. The nuclide produced was determination by gamma spectrometry with a Ge intrinsic detector. Irradiation was carried out in the Karlsruhe Isochronous Cyclotron with -particles of energies up to 40 MeV.

Restricted access

Abstract  

A stack of natural copper was bombarded with -particles. Cumulative cross-sections for65Ga,66Ga and65Zn production, and the excitation functions for68Ga and67Ga production, were measured using high resolution gamma-ray spectroscopy. The data are compared with the theoretical result provided by equilibrium and pre-equilibrium reaction model, for this purpose we used the code ALICE of Blann. The overall agreement with theory is good. Besides, we present the experimental data obtained by other authors.

Restricted access

Abstract  

Cumulative cross-sections were determined by the stacked foil method for the (, xn) and (, 2pxn) reactions on159Tb up to 90 MeV. Thick target yields were calculated as a function of the energy for the production of153Tb,155Tb,156Tb,158Tb and160Tb.

Restricted access

Abstract  

Cumulative cross sections of (, pxn) reactions on natural iron have been measured up to 85 MeV bombarding energy by Ge intrinsic spectroscopy of the residual activity of stacked foils. On the basis of the cumulative cross sections the thick target yields and saturation production rates of cobalt isotopes have been evaluated.

Restricted access
Journal of Radioanalytical and Nuclear Chemistry
Authors: O. Capurro, M. de la Vega Vedoya, C. Wasilevsky, and S. Nassiff

Abstract  

Excitation functions of (, xn) reactions on197Au with x5 have been measured in different irradiations from 10 to 55 MeV bombarding energy, by Ge intrinsic spectroscopy of the residual activity of stacked foils. Absolute cross sections for the formation of200,199,198,197,196 mTl are reported. Isomeric ratios for products198mTl and198gTl were also determined.

Restricted access