Gul Sher, Mukhtar Ahmed Rana, Muhammad Ikram Shahzad
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Physics Division Nilore Islamabad.
DOI: 10.4236/wjnst.2011.11003   PDF    HTML   XML   5,273 Downloads   9,880 Views   Citations

Abstract

We investigate 158A GeV 207Pb projectile fragmentation on Al target using CR-39 nuclear track detectors. A stack containing target-detectors assembly was irradiated at SPS-CERN. After chemical etching, detectors were scanned using an optical microscope to collect the data in the form of etched cone heights. From the cone height measurements, total and partial charge changing cross sections of 207Pb projectiles on aluminum target are determined. The results are compared with both relevant published measurements available in the literature and model predictions. Odd-even effect in the formation of the fragments of 158A GeV 207Pb pro-jectiles is observed in a consistent and a clear manner over the observed range of fragments (Z=63-81). This is achieved by using optimized etching and track measurement conditions.

Keywords

Relativistic Energy, Projectile Fragmentation, CR-39 Detectors

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Conflicts of Interest

The authors declare no conflicts of interest.

References

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