Proton-induced spallation at 600 MeV

Abstract

In the course of a systematic investigation of proton-induced reactions up to p-energies of 3000 MeV, the target elements

Determination of Gross Sections for the Production of 7Be, 10Be and 22Na by High-Energy Protons

“…But more data in the low-energy region are necessary. Around 600 MeV the data by Michel et al [5] (1.52±0.15)mb, Raisbeck and Yiou [21] with (1.94±0.36) mb and Amin et al [20] at 550 MeV with (1.72 + 0.1) mb are in reasonable agreement.…”

“…For the reaction 0(p,5p;cn)^Be, there is a relatively good agreement (Figure 1) between our new data and the earlier determinations [5,13,14,15,16] between 600 MeV and 6000 MeV. It should be mentioned, however, that the cross section given by Raisbeck and Yiou [14] at 1000 MeV is lower than our data at 800 and 1200 MeV by 15-20%.…”

“…Recoilloss or -contamination were negligible, because always the foils in the middle of each element-stack were taken for the analysis. A more detailed discussion of the various sources of errors affecting the experimental determination of cross sections, which also is valid for this work, was given earlier [5].…”

“…For the reaction 0(p,5pxn)"'Be data exist by some authors [5,20,21] between 100 and 2600 MeV (Figure 2). But below 600 MeV there is only one determination at 135 MeV [20].…”

“…The experiments described here continue a project which was started with 600 MeV proton irradiation at CERN [5] in order to improve the experimental data base for high-energy reactions. The new experiment's aim is the determination of a large number of product nuclides from target elements with masses between 16 and 196.…”