1997
DOI: 10.1103/physrevc.56.2654
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Production cross sections of ground and isomeric states in the reaction systems93Nb+3He,

Abstract: Cross-section measurements on the production of 94 Tc m in the reactions 93 Nb( 3 He,2n), 92 Mo(␣,x), and 94 Mo( p,n) were performed recently at Jülich in order to investigate ways of producing this radioisotope on a large scale for nuclear medical application. Those experiments also yielded the excitation functions for the reactions 93 Nb ( 3 He,xn) 95,94,93 Tc m,g (xϭ1,2,3), 93 Nb( 3 He,x) 93 Mo m , 93 Nb( 3 He,x) 92 Nb m and 93 Nb( 3 He,x) 89 Zr mϩg , 92 Mo(␣,xn) 95,94 Ru (xϭ1,2), 92 Mo(␣,x) 94 Tc m,g , a… Show more

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Cited by 32 publications
(22 citation statements)
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“…The third, labeled "STAPRE" concerns a purely phenomenological model, similar to that of TALYS but with parameters optimized to describe the experimental results. The STAPRE code has been used extensively in investigations concerning isomer cross sections [4,33,[39][40][41]. Further details are given below.…”
Section: Nuclear Model Calculationsmentioning
confidence: 99%
“…The third, labeled "STAPRE" concerns a purely phenomenological model, similar to that of TALYS but with parameters optimized to describe the experimental results. The STAPRE code has been used extensively in investigations concerning isomer cross sections [4,33,[39][40][41]. Further details are given below.…”
Section: Nuclear Model Calculationsmentioning
confidence: 99%
“…A set of experimental data corresponding to the reaction 92 Mo(α,n) 95 Ru is available in [50] (Sect.IV B, Fig.6a). We have calculated the cross section from our model in the measured energy range, and found very good conformity between our calculations and the existing experimental data.…”
Section: (αN)-induced Reactionsmentioning
confidence: 99%
“…It is now known that the isomeric cross-section ratio is governed primarily by the spins of the levels involved, rather than by their separation energies [1,2]. In addition, through detailed studies of the formation of 73 Se m,g in six nuclear reactions [1], 58 Co m,g in seven nuclear reactions [3], 94 Tc m,g in three nuclear reactions [4], and 120 I m,g in three nuclear processes [5], involving different combinations of target, projectile, and ejectile, the effects of changes in the ratio of the moment of inertia to the rigid body moment of inertia, assumptions regarding the angular momentum distribution after pre-equilibrium (PE) decay, spin and parity assignments of discrete levels, branching ratios of γ rays from discrete levels, and ratios of strengths of γ rays of different multipole types have been elucidated. In a model case of isomeric pairs with identical metastable and ground state spins, the influence of the reaction channel on the isomeric cross-section ratio was also demonstrated [6].…”
Section: Introductionmentioning
confidence: 98%
“…The theoretical analysis has also shown the excitation energy dependence of the spin-cutoff parameter [13]. The spin distribution of the levels can be studied experimentally by investigating the rotational band of the nuclei [14] or by comparing the measured and calculated isomeric cross-section ratios [1,[3][4][5]15].…”
Section: Introductionmentioning
confidence: 99%