Fabrication and characterization of carbon-backed thin 208 Pb targets.

Autor: Thakur M; Department of Physics, Panjab University, Chandigarh - 160014, India., Dubey R; Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi - 110067, India., Abhilash SR; Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi - 110067, India., Behera BR; Department of Physics, Panjab University, Chandigarh - 160014, India., Mohanty BP; Department of Physics, Panjab University, Chandigarh - 160014, India., Kabiraj D; Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi - 110067, India., Ojha S; Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi - 110067, India., Duggal H; Department of Physics, Panjab University, Chandigarh - 160014, India.
Jazyk: angličtina
Zdroj: MethodsX [MethodsX] 2016 Oct 19; Vol. 3, pp. 542-550. Date of Electronic Publication: 2016 Oct 19 (Print Publication: 2016).
DOI: 10.1016/j.mex.2016.10.002
Abstrakt: Thin carbon-backed isotopically enriched 208 Pb targets were required for our experiment aimed to study the reaction dynamics for 48 Ti +  208 Pb system, populating the near super-heavy nucleus 256 Rf, through mass-energy correlation of the fission fragments. Purity and thickness of the targets are of utmost importance in such studies as these factors have strong influence on the measurement accuracy of mass and energy distribution of fission fragments. 208 Pb targets with thickness ranging from 60 μg/cm 2 to 250 μg/cm 2 have been fabricated in high vacuum environment using physical vapor deposition method. Important points in the method are as follows: • 208 Pb was deposited using resistive heating method, whereas carbon (backing foil) deposition was performed by using the electron beam bombardment technique.•Different characterization techniques such as Particle Induced X-ray Emission (PIXE), Energy Dispersive X-Ray Fluorescence (EDXRF) and Rutherford Backscattering Spectrometry (RBS) were used to assert the purity and thickness of the targets.•These targets have successfully been used to accomplish our experimental objectives.
Databáze: MEDLINE
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