Measurement of excitation functions in alpha-induced reactions on yttrium

Abstract

Y(a,x) reactions MC-50 cyclotron Stacked-foil activation technique Excitation functionOff line c-ray spectrometry a b s t r a c tThe excitation functions of 89g,m,90,91m,92m Nb, 88,89 Zr, and 87g,m,88,90m,91m Y from alpha-induced reactions on 89 Y were measured from their respective threshold to 45 MeV by using a stacked-foil activation technique at the MC-50 cyclotron of the Korean Institute of Radiological and Medical Sciences. The results were compared with the earlier reported data as well as with the theoretical values obtained from the TENDL-2013 library based on the TALYS1.6 code. Our measurements in the energy region from the threshold energy to 45 MeV are in general good agreement with the other experimental data and calculated results. The integral yields for thick target of the produced radionuclides were also deduced from their measured cross sections and the stopping power of 89 Y. The measured excitation functions find importance in various practical applications including nuclear medicine and improvement of nuclear model calculations.

Recommended nuclear data for medical radioisotope production: diagnostic positron emitters

“…The six experimental datasets available in the literature are shown in Fig. 117 [36,[263][264][265][266][267] together with the TENDL calculations. Four datasets were rejected (Singh et al [266], Chaubey and Rizvi [265], Mukherjee et al [264], and Fig.…”

“…Four datasets were rejected (Singh et al [266], Chaubey and Rizvi [265], Mukherjee et al [264], and Fig. 117 Six experimental datasets for the 89 Y(α,3n) 90 Nb reaction available in the literature [36,[263][264][265][266][267], and TENDL calculations Fig. 118 Two selected experimental datasets for the 89 Y(α,3n) 90 Nb reaction [36,267] with the Padé fit (L = 16, N = 33, χ 2 = 1.29, solid line) and estimated total uncertainties in percentages, including 4% systematic uncertainty (dashed line, right-hand scale) Smend et al [263], all systematically lower values), while the remaining two sets were used in the statistical fitting procedure.…”

Measurement of excitation functions in alpha induced reactions on natCu

“…The details of experiment and data evaluation procedure are described elsewhere [44][45][46][47][48][49][50][51].…”

“…The production cross sections and beam intensity were determined using the activation formula described in [44][45][46][47][48][49][50][51]. The decay data given in Table 1 were taken from the ENSDF evaluation [54][55][56][57][58][59][60][61][62][63] obtained from the NuDat 2.6 database [64].…”

Excitation function measurement for zirconium-89 and niobium-90 production using alpha-induced reactions on yttrium-89

“…To determine the yields of 89 Zr and 90 Nb produced by using this reaction, the excitation function data are quite basic and important. Three previous experiments were found for the 89 Y(α, x) 89 Zr reaction [9,10,11], and five for the 89 Y(α, x) 90 Nb reaction [9,10,11,12,13] in the EXFOR library [14]. However, there are discrepancies among the experimental data of these excitation functions.…”