Experimental measurements and nuclear model calculations on the excitation functions of natCe(3He, xn) and 141Pr(p, xn) reactions with special reference to production of the therapeutic radionuclide 140Nd

2005 ◽  
Vol 93 (9-10) ◽  
Author(s):  
K. Hilgers ◽  
Yu. N. Shubin ◽  
Heinz H. Coenen ◽  
Syed M. Qaim

SummaryFor production of the therapy related Auger electron emitting neutron deficient nuclide

2017 ◽  
Vol 6 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Tarik Siddik

The excitation functions for (n, p) reactions from reaction threshold to 24 MeV on some important iron (Fe) group target elements (20 ≤ Z ≤ 28) for astrophysical (n, p) reactions such as Si, Ca, Sc, Ti, Cr, Fe, Co and Ni were calculated using TALYS-1.0 nuclear model code. The new calculations on the excitation functions of 28Si(n, p)28Al, 29Si(n, p)29Al, 42Ca(n, p)42K, 45Sc(n, p)45Ca, 46Ti(n, p)46Sc, 53Cr(n, p)53V, 54Fe(n, p)54Mn, 57Fe(n, p)57Mn, 59Co(n, p)59Fe, 58Ni(n, p)58Co and 60Ni(n, p)60Co reactions have been carried out up to 24 MeV incident neutron energy. In these calculations, the compound nucleus and pre-equilibrium reaction mechanism studied extensively. According to these calculations, we assume that these model calculations can be applied to some heavy elements, ejected into interstellar medium by dramatic supernova events.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
M. Shuza Uddin ◽  
M. Shamsuzzoha Basunia ◽  
Syed M. Qaim

Abstract Excitation functions of the reactions 27Al(d,αp)24Na, 27Al(d,2p)27Mg and 27Al(d,p)28Al were measured by the activation technique up to deuteron energies of 37 MeV. The available experimental databases of the reaction products 27Mg and 28Al were extended and compared with the nuclear model calculations based on the code TALYS-1.8. Our measured data are reproduced well by the model calculations after adjustment of a few free input parameters. The cross-section ratio of the (d,αp) to (d,2p) process as a function of projectile energy was deduced from the measured data, and the result is interpreted in terms of competition between a proton and an α-particle emission.


2018 ◽  
Vol 106 (2) ◽  
pp. 87-93 ◽  
Author(s):  
Md. Shuza Uddin ◽  
Kwangsoo Kim ◽  
Muhammad Nadeem ◽  
Sandor Sudár ◽  
Guinyun Kim

AbstractExcitation functions of thenatNi(α,x)60,61Cu and64Ni(α,p)67Cu reactions were measured using the stacked-foil activation technique. The experimental data achieved were compared with literature data as well as with nuclear model calculations performed using the code TALYS-1.8. Integral yields from the respective thresholds to 44 MeV were deduced from the measured excitation curves. The >99% pure61Cu can be produced using the energy window of Eα=20→7 MeV, the yield amounting to 116 MBq/μAh. After a 2 h cooling time, the short-lived60Cu (T1/2=23 min) impurity will be reduced to <0.1%. Due to low isotopic abundance of64Ni, the enriched64Ni target would be needed for the production of67Cu via the (α,p) reaction. The cost would, however, be very high. In a few cases, particularly above 24 MeV, we have given new data points. In general, our measurements have strengthened the database.


2004 ◽  
Vol 92 (8) ◽  
Author(s):  
S. Kastleiner ◽  
Yu. N. Shubin ◽  
F. M. Nortier ◽  
T.N. van der Walt ◽  
Syed M. Qaim

SummaryExcitation functions were measured by the stacked-foil technique for the reactions


2001 ◽  
Vol 89 (11-12) ◽  
Author(s):  
J. Kuhnhenn ◽  
U. Herpers ◽  
W. Glasser ◽  
R. Michel ◽  
P. W. Kubik ◽  
...  

Some new cross sections for proton-induced radionuclide formation from lead are presented. The results extend the previous measurements from about 70 MeV down to threshold energies. Emphasis was placed upon an improved method of γ-ray spectrum analysis which proved to be reliable and effective. The new results are compared with model calculations on the basis of an improved hybrid model of preequilibrium reactions which is able to reproduce the near target products very well. But for more than 6 emitted nucleons, experimental measurements are superior.


2012 ◽  
Vol 75 (3) ◽  
pp. 310-314 ◽  
Author(s):  
A. Aydin ◽  
H. Pekdoğan ◽  
E. Tel ◽  
A. Kaplan

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