93 research outputs found

    A COMPARATIVE STUDY BETWEEN SIMULATED AND MEASURED BEAM'S QUALITY OF 30 MeV CYCLOTRON AT KFSHRC

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    Abstract At King Faisal Specialist Hospital and Research Centre (KFSHRC), the C-30 Cyclotron (manufactured by IBA) is used to produce radioisotopes for medical purposes. Working with very expensive machine dedicated for patients needs full attention and understanding of how beam can be controlled safely inside beam transport system. Moreover, knowledge of influence of magnetic lenses on charged particles is desired. Therefore, using off-line source such as PC-based beam simulator allows an operator to immediately see the effect of various magnetic lenses attached to the beam line. Initially, the magnetic field of quadruples and steering magnet was recorded using Hall probe Teslameter. The magnetic field values then uploaded into the Beam simulator in which beam quality was recorded and analysed

    Room-Temperature Inter-Dot Coherent Dynamics in Multilayer Quantum Dot Materials

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    The full blossoming of quantum technologies requires the availability of easy-to-prepare materials where quantum coherences can be effectively initiated, controlled, and exploited, preferably at ambient conditions. Solid-state multilayers of colloidally grown quantum dots (QDs) are highly promising for this task because of the possibility of assembling networks of electronically coupled QDs through the modulation of sizes, inter-dot linkers, and distances. To usefully probe coherence in these materials, the dynamical characterization of their collective quantum mechanically coupled states is needed. Here, we explore by two-dimensional electronic spectroscopy the coherent dynamics of solid-state multilayers of electronically coupled colloidally grown CdSe QDs and complement it by detailed computations. The time evolution of a coherent superposition of states delocalized over more than one QD was captured at ambient conditions. We thus provide important evidence for inter-dot coherences in such solid-state materials, opening up new avenues for the effective application of these materials in quantum technologies

    GROWTH RATES IN LATITUDINALLY AND VERTICALLY SEPARATED POPULATIONS OF MYTILUS CALIFORNIANUS

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    Volume: 110Start Page: 43End Page: 5

    EFFECT OF TEMPERATURE AND SALINITY ON THE OXYGEN CONSUMPTION OF TWO INTERTIDAL CRABS

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    Volume: 118Start Page: 215End Page: 24

    ASPECTS OF OSMOREGULATION IN TWO SPECIES OF INTERTIDAL CRABS

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    Volume: 122Start Page: 208End Page: 22

    Ionenregulation bei zwei Arten estuariner Kurzschwanzkrebse

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    OSMOREGULATORY ROLE OF THE ANTENNARY GLAND IN TWO SPECIES OF ESTUARINE CRABS

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    Volume: 126Start Page: 354End Page: 37

    ACCLIMATION OF OXYGEN CONSUMPTION TO TEMPERATURE IN THE AMERICAN COCKROACH (PERIPLANETA AMERICANA)

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    Volume: 111Start Page: 53End Page: 6
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