Journal ArticleDOI
Study of fragmentation in56Fe+27Al interactions at 1.88A GeV using CR-39 (DOP) solid-state nuclear-track detector
D. P. Bhattacharyya,B. Basu,Pratibha Pal,R. Rakshit,Sandipan Chakraborty,Sanjoy Biswas,N. Durgaprasad +6 more
TLDR
In this article, the minor axes of the elliptic etch pits were measured by a Leitz Ortholux microscope and the measured double-cone charge resolution was found to be 0.20e.Abstract:
1.88A GeV56Fe beam of Lawrence Berkeley Laboratory BEVALAC irradiated at an angle 30° to the stack, composed of Al target and CR-39 (DOP) solid-state nuclear-track detector. These polymer sheets were etched in 6.25N NaOH solution at 70°C for 48 hours. The minor axes of the elliptic etch pits were measured by a Leitz Ortholux microscope. The measured projectile fragmentation cross-section for nuclei of chargeZ ranging from 21 to 25 is in approximate agreement with the calculated result from the semi-empirical nuclear fragmentation model after Wilson, Townsend and Badavi. The existence of trans Fe nuclei was noticed. The measured double-cone charge resolution was found to be 0.20e.read more
Citations
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Experimental observation of wiggler superradiance under group synchronism condition
Naum S. Ginzburg,N. Yu. Peskov,Irina V. Zotova,A. S. Sergeev,Alan D. R. Phelps,Adrian W. Cross,Wenlong He,Kevin Ronald,Valery G. Shpak,M. I. Yalandin,S. A. Shunailov,Marat R. Ul'maskulov +11 more
TL;DR: In this paper, the first results of the observation of superradiance from a single, subnanosecond, high current, electron bunch passing through a wiggler immersed in a guide magnetic field are presented.
Journal ArticleDOI
Pershore made CR-39(DOP) as a 1.015 GeV/n197Au-ion detector
TL;DR: In this article, the top of the irradiated plate of the stack has been etched in 6.25N NaOH solution at 70°C for one hour and about 1202 cone lengths were optically measured.
Journal ArticleDOI
Studies on elemental charge-changing cross-section for relativistic U+Al collisions using CR-39 (DOP) detector
TL;DR: In this paper, a search was made on the charge-changing partial cross-sections by using 0.927 GeV/n238U ion from LBL BEVALAC projected at an angle 30° on27Al target and CR-39 (DOP) was used as analyser.
Journal ArticleDOI
Estimate of large fragment yield forZ>56 nuclei
R. Rakshit,D. P. Bhattacharyya +1 more
TL;DR: In this paper, large fragment yields are calculated for Z>56 nuclei in the frame-work of abrasion/ablation model which includes a third-order correction for surface energy term.
References
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Journal ArticleDOI
Partial Cross-Sections in High-Energy Nuclear Reactions, and Astrophysical Applications. I. Targets With z <= 28.
R. Silberberg,C. H. Tsao +1 more
Journal ArticleDOI
On geometry of tracks in dielectric nuclear track detectors
R.P. Henke,E.V. Benton +1 more
TL;DR: In this paper, the most relevant aspects of etched particle track geometry are derived and discussed in considerable detail, and track specification and measurement parameters are developed for a variety of different situations.
Journal ArticleDOI
Fragmentation of relativistic /sup 56/Fe
G. D. Westfall,Lance W. Wilson,Peter J. Lindstrom,H. J. Crawford,D. E. Greiner,Harry H. Heckman +5 more
TL;DR: In this paper, the fragmentation of /sup 56/Fe at 1.88 GeV/nucleon has been studied on H, Li, Be, C, S, Cu, Ag, Ta, Pb, and U targets.
Journal ArticleDOI
A semiempirical nuclear fragmentation model.
TL;DR: An abrasion/ablation model of heavy ion fragmentation is derived which includes a second order correction for the surface energy term and provides a reasonable representation of the present elemental fragmentation cross sections.
Journal ArticleDOI
Energy straggling eliminated as a limitation to charge resolution of transmission detectors
G. Tarle,S. P. Ahlen,P. B. Price +2 more
TL;DR: In this paper, it is shown that this limitation can be overcome with a new nuclear track detector, CR-39(DOP), and that the charge resolution of this detector exceeds that of any other, including semiconductor diodes.