Study of projectile fragmentation in the reaction (158AGeV) Pb + Pb using CR-39

Qureshi, I. H.; Shahzad, M.I.; JAVED, MA; Manzoor, Shahid; Sher, G.; Aleem, Fazal-e; Khan, H.A.

doi:10.1016/j.radmeas.2004.11.013

Cited by 7 publications

(6 citation statements)

References 13 publications

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“…Measurements of fully resolved etched cone heights corresponding to the projectiles and the fragments produced are used for the determination of the total and partial fragmentation cross sections. The measured total fragmentation cross section is in good agreement with the experimental data of the Al target, but smaller in comparison with the experimental data of heavy targets at similar energy reported in literature [4][5][6]10]. The results show that the nuclear part of the fragmentation cross section is dominant while the electromagnetic part being very small in the Pb projectile fragmentation on Al target.…”

Section: Discussionsupporting

confidence: 81%

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Lead Projectile Fragmentation on Aluminum Target: Improved Experimental Results

Sher¹,

Rana²,

Shahzad³

2011

WJNST

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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

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Section: Discussionsupporting

confidence: 81%

“…Fragmentation cross sections are required to understand and evaluate composition of the cosmic rays propagation through the interstellar medium [1,2]. At relativistic energy, projectile fragmentation on different targets has been studied by a number of authors using both active and passive detection techniques [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Lead Projectile Fragmentation on Aluminum Target: Improved Experimental Results

Sher¹,

Rana²,

Shahzad³

2011

WJNST

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“…For the determination of the total charge-changing cross sections, σ tot , the number of beam ions before the target (incident ions) and the number of beam ions after the targets were measured [8][9][10][11]. The target thicknesses were chosen to optimise the fragmentation process.…”

Section: Total Charge-changing Cross Sectionsmentioning

confidence: 99%

Fragmentation studies of high-energy ions using CR39 nuclear track detectors

Togo

Balestra

Cecchini

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

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We report on the measurements of the total charge changing fragmentation cross sections in high-energy nucleus-nucleus collisions using Fe, Si and Pb incident ions. Several stacks of CR39 nuclear track detectors with different target combinations were exposed at normal incidence to high energy accelerator beams to integrated densities of about 2000 ions/cm 2 . The nuclear track detector foils were chemically etched, and ion tracks were measured using an automatic image analyser system. The cross section determination is based on the charge identification of beam ions and their fragments and on the reconstruction of their path through the stacks.

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“…A different but similar way of investigating the nucleus structure is the measurement of fragmentation cross sections of nuclei interacting at relativistic energies. A number of investigations have been carried out in last 10 years by PINSTECH group independently or in collaboration with Bologna University group to understand fragmentation behaviour of relativistic nuclei on different targets [29][30][31][32][33][34][35][36][37][38]. Two representative investigations one related to calibration of CR-39 detectors for identification of fragments and other about fragmentation cross sections of relativistic Pb projectiles are briefly described to highlight the theme of these investigations.…”

Section: Nuclear Fission and Fragmentationmentioning

confidence: 99%

Research and applications of nuclear tracks: Developments in Pakistan and global comparison

Rana¹

2012

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The present paper describes the development and applications of nuclear track detection technique in Pakistan. Pakistan entered in the field of nuclear tracks in early 1970s when it was still quite new. Highlights of successes of different Pakistani laboratories, working on nuclear tracks, achieved on their own or in collaboration with similar centers in the world are described briefly. The robust features of this investigation are the comprehensive investigation of the addressed research, analysis and review of results, and discussions with the perspectives of applications and new research directions. Further analysis of the published results by the present author and some new results are also presented. This paper portrays a comprehensive picture of the nuclear track detection research and technology in Pakistan and can be useful for a similar development in any country around the globe

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Study of projectile fragmentation in the reaction (158AGeV) Pb + Pb using CR-39

Cited by 7 publications

References 13 publications

Lead Projectile Fragmentation on Aluminum Target: Improved Experimental Results

Lead Projectile Fragmentation on Aluminum Target: Improved Experimental Results

Fragmentation studies of high-energy ions using CR39 nuclear track detectors

Research and applications of nuclear tracks: Developments in Pakistan and global comparison

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