Guided ion beam study of collision-induced dissociation dynamics: integral and differential cross sections

2001 ◽  
Vol 115 (3) ◽  
pp. 1213-1228 ◽  
Author(s):  
Felician Muntean ◽  
P. B. Armentrout
2021 ◽  
Author(s):  
M. Salimi ◽  
O. Kakuee ◽  
S. F. Masoudi ◽  
H. R. kheiri ◽  
E. Briand ◽  
...  

Abstract The cross-sections of deuteron-induced nuclear reactions suitable for ion beam analysis, measured in different laboratories, are often significantly different. In the present work, differential cross-sections of 27 Al(d,p) and 27 Al(d,α) reactions were measured, and the cross sections benchmarked with thick target spectra obtained from pure aluminium for the first time in two independent laboratories. The 27 Al(d,p) and (d,alpha) differential cross-sections were measured between 1.4 and 2 MeV at scattering angles of 165°, 150°, and 135° in the VDGT laboratory in Tehran (Iran), and the same measurements for detector angle of 150° were repeated from scratch, including target making, with independent equipment on the SAFIR platform at INSP in Paris (France). The results of these two measurements at 150° are in good agreement, and for the first time a fitted function is proposed to describe the Al-cross sections for which no suitable theoretical expression exists. The obtained differential cross-sections were validated through benchmarking, by fitting with SIMNRA deuteron-induced particle spectra obtained from a high purity bulk Al target at both labs for deuteron incident energies between 1.6 and 2 MeV. The thick target spectra are well-reproduced. The evaluated and benchmarked cross sections have been uploaded to the ion beam analysis nuclear data library database (www-nds.iaea.org/ibandl/).


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. Salimi ◽  
O. Kakuee ◽  
S. F. Masoudi ◽  
H. Rafi-kheiri ◽  
E. Briand ◽  
...  

AbstractThe cross-sections of deuteron-induced nuclear reactions suitable for ion beam analysis, measured in different laboratories, are often significantly different. In the present work, differential cross-sections of 27Al(d,p) and 27Al(d,α) reactions were measured, and the cross sections benchmarked with thick target spectra obtained from pure aluminium for the first time in two independent laboratories. The 27Al(d,p) and (d,α) differential cross-sections were measured between 1.4 and 2 MeV at scattering angles of 165°, 150°, and 135° in the VDGT laboratory in Tehran (Iran), and the same measurements for detector angle of 150° were repeated from scratch, including target making, with independent equipment on the SAFIR platform at INSP in Paris (France). The results of these two measurements at 150° are in good agreement, and for the first time a fitted function is proposed to describe the Al-cross sections for which no suitable theoretical expression exists. The obtained differential cross-sections were validated through benchmarking, by fitting with SIMNRA deuteron-induced particle spectra obtained from a high purity bulk Al target at both labs for deuteron incident energies between 1.6 and 2 MeV. The thick target spectra are well-reproduced. The evaluated and benchmarked cross sections have been uploaded to the ion beam analysis nuclear data library database (www-nds.iaea.org/ibandl/).


1973 ◽  
Vol 28 (5) ◽  
pp. 714-716 ◽  
Author(s):  
Hans-Peter Weise ◽  
Hans-Ulrich Mittmann

Differential cross-sections for the elastic scattering of He+ on Ne, Ar, Kr, and Xe were measured at different energies. At energies between 3 eV and several 100 eV, Stueckelberg oscillations could be observed. Between 1 eV and 8 eV rainbow structures were detected, but the rapid oscillations could not be resolved. The measured differential cross-sections were compared with calculated curves. The angular positions of the primary rainbows indicated a very weak interaction in the order of the polarisation energy between the He+-ion and the noble gases. Thus a 12 - 4 potential was used for the calculations since the attractive part of this potential describes the ion induced dipole potential. The depth of the potential well was obtained as < 0.05 eV for He+ -Ne, 0.19 eV for He+ -Ar, 0.22 eV for He+-Kr and 0.28 eV for He+ - Xe. A method is described which allows for correction of the nominal energy of the primary ion beam for contact potentials.


2019 ◽  
Vol 25 ◽  
pp. 208
Author(s):  
E. Ntemou ◽  
X. Aslanoglou ◽  
M. Axiotis ◽  
V. Foteinou ◽  
M. Kokkoris ◽  
...  

N/A


1999 ◽  
Vol 32 (4) ◽  
pp. L73-L79 ◽  
Author(s):  
Kh Khayyat ◽  
T Weber ◽  
R Dörner ◽  
M Achler ◽  
V Mergel ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document