Measurements of cross sections for production of light nuclides by 300MeV proton bombardment of Cu and Y

Measurements of production cross sections of 10Be and 26Al by 120 GeV and 392 MeV proton bombardment of 89Y, 159Tb, and natCu targets

“…On the other hand, for targets with masses equal to or greater than that of yttrium, the production cross sections of 26 Al slightly increase, though the slope is somewhat different from that of 10 Be case. This increasing trend from that of yttrium to that of bismuth is supported by the production cross sections measured in this work for yttrium with E p = 120 GeV, those measured by Shibata et al [1] for silver and gold with E p = 12 GeV, those measured by Sisterson et al [10] for bismuth with E p ≈ 300 MeV and those reported in our previous work [4] for yttrium with E p ≈ 300 MeV.…”

“…1). This trend is also supported by the production cross sections obtained for yttrium and bismuth at E p ≈ 300 MeV by Sekimoto et al [4] and Schumann et al [5], respectively Second, the production cross sections of 26 Al from 89 Y and nat Cu targets with E p = 120 GeV and that from nat Cu with E p = 392 MeV are summarized in Table 2. Figure 2 presents these data together with other experimental results obtained for production cross sections in the energy range from 300 MeV to 24 GeV.…”

“…For target mass numbers greater than 60, few light nuclide production cross sections have been measured and published so far, and the maximum proton energy used thus far is 12 GeV, for which the production cross sections of 10 Be were reported [1]. An extensive program for the measurement of the production cross sections of 10 Be and 26 Al by using accelerator mass spectrometry (AMS) has also been systematically undertaken in our laboratory in recent years, and some results have been published [4].…”

“…The nat Cu target was selected to enable systematic investigation of targets with intermediate and large mass numbers. The results were compared to the production cross sections of the light nuclides, 10 Be and 26 Al, that were produced by targets of various mass numbers when 50 MeV-24 GeV protons were used [1][2][4][5][6][7][8][9][10][11][12][13][14][15]. The dependence of the production cross sections of those nuclides on the incident energy and on the target mass number are presented here.…”

“…Unfortunately, the Al 2 O 3 samples could not be prepared successfully for AMS measurements in the 89 Y and 159 Tb targets irradiated at RCNP (E p = 392 MeV). For the Cu foil irradiated at RCNP, the chemical separation scheme was essentially the same as that described by Sekimoto et al [4]. The AMS measurement of this sample was completed at the PRIME Lab (Purdue Rare Isotope Measurement Laboratory), Purdue University [20].…”