Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sumaira Zeeshan"'
Autor:
Agnese Lagzda, Roger Jones, Wilfrid Farabolini, Deepa Angal-Kalinin, Sumaira Zeeshan, Ranald I Mackay, J. K. Jones, A. Aitkenhead, Marcel van Herk, Karen J. Kirkby
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 482:70-81
In this paper we investigate the dosimetric effects target inhomogeneities on VHEE (Very High Energy Electron) beam dose profiles. Dose profile sensitivity to high and low density ( 0.001 - 2.2 g / cm 3 ) embedded media in water was measured for 156
Autor:
Anum Asif, Tariq M. Qureshi, Sumaira Zeeshan, Falak Sher, M. Ayub, Kashif Yaqub, AnisUllah Baig, Abdul Rehman, M. Asif Khan
Publikováno v:
Radiation Physics and Chemistry. 195:110058
Publikováno v:
Chemical Physics Letters. 707:144-149
Experiments with irradiated single-walled carbon nanotubes are shown to generate a set of probability distribution functions and to derive a set of information theoretic entropy-based parameters. Energetic Cs+ ions initiate linear collision cascades
Autor:
Shoaib Akbar, Sumera Javeed, Sumera Yamin, Kashif Yaqub, Masood Ahmed, Manzoor Ahmed, Zahid Asghar, Usman Raza, Sumaira Zeeshan
Publikováno v:
Surfaces and Interfaces. 11:57-62
Cerium doped Yttrium Aluminum Garnet (YAG: Ce) coatings; produced by spray deposition and electrophoretic techniques, are characterized for their surface morphology and electro-luminescence. The surface morphology of synthesized samples shows that sa
Autor:
Manzoor Ahmed, Sumera Javeed, Sumaira Zeeshan, Shoaib Akbar, Kashif Yaqub, Munir Ahmed Khan, Ilyas Farooqi, Usman Raza
Publikováno v:
Vacuum. 175:109242
The design of a Faraday Cup (FC) is presented. The FC is designed to be used at an industrial LINAC test beamline. The present study gives the comprehensive design of FC to minimize the effects of secondary electrons. It also describes the heat dissi
Autor:
Muhammad Asif Yousuf, Sumaira Zeeshan, Muhammad Sabtain Abbas, Shoaib Ahmad, Sumera Javeed, Kashif Yaqub
Publikováno v:
The European Physical Journal D. 72
The mechanism responsible for the emission of clusters from heavy ion irradiated solids is proposed to be thermal spikes. Collision cascade-based theories describe atomic sputtering but cannot explain the consistently observed experimental evidence f
The results from mass spectrometry of clusters sputtered from Cs+ irradiated single-walled carbon nano-tubes (SWCNTs) as a function of energy and dose identify the nature of the resulting damage in the form of multiple vacancy generation. For pristin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54e43b3dfaf56d61044c6361fcc845ec
http://arxiv.org/abs/1609.09347
http://arxiv.org/abs/1609.09347
Three C60 fragmentation regimes in fullerite bombarded by Cs+ are identified as a function of its energy. C2 is the major species sputtered at all energies. For E(Cs+) < 1 keV C2 emissions dominate. C2 and C1 have highest intensities between 1 and 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec03e74187ef5c352c109216b9062aee
Autor:
Sumaira Zeeshan, Sumera Javeed, Muhammad Asif Yousuf, Shoaib Ahmad, Athar Naeem, Muhammad Khaleel, Muhammad Shahnawaz, Ahsan Mushtaq, Shahzad Saadat
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 271:55-60
Experiments with multi-walled carbon nanotubes (MWCNTs) and graphite as targets in a source of negative ions with cesium sputtering show that MWCNTs with nanometer radii and micrometer length can be compared with micrometer-size graphite grains. The
Autor:
Sumera Javeed, Sumera Yamin, Sumaira Zeeshan, Muhammad Anwar-ul-Haq, Kashif Yaqub, Sohail Ahmad Janjua, Mazhar Mehmood, Shoaib Ahmad, Afshan Ashraf
Publikováno v:
Vacuum. 86:193-200
We present results of carbon coatings on metal substrates in cylindrical hollow cathode (CHC) direct current magnetron sputtering. This is a new technique for making amorphous carbon films by CHC magnetron sputtering from a regenerative sooting disch