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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 44 for “"terbium"”.
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Scintillation Studies of Terbium-156 and Terbium-154
Made available in DSpace on 2015-05-12T17:12:10Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 5805429.PDF: 2963409 bytes, checksum: da71124be72edd3d2021ca52e48c9075 (MD5) Previous issue date: 1958
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Terbium-based fluoride and oxide crystals for visible lasers
In the course of this thesis, Tb3+-doped fluoride and oxide materials have been investigated with regard to their properties as potential laser active materials with emission in the visible range. Main spectroscopic and laser investigations have been carried out in LiLuF4 and LiTbF4, KY3F10 and …
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OPTIMIZATION OF THE PRODUCTION OF TERBIUM RADIONUCLIDES FOR THERANOSTIC APPLICATIONS
… identical radionuclide pairs. In particular, the terbium isotopes 149Tb, 152Tb, 155Tb, and 161Tb have shown great potential due to their unique decay properties, enabling precise imaging and effective treatment modalities. This thesis focuses on the optimization of terbium radioisotopes production …
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Spin-orbit torque switching of compensated ferrimagnetic cobalt-terbium alloys
Spintronic devices promise to be an energy efficient alternative to complementary metal oxide semiconductor devices for logic and memory. However, in order to be more competitive, further reductions in switching energy and switching speed are needed. Recently, there has been interest in using …
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Quantenpunktbasiertes spektroskopisches Lineal mit Terbium-Komplexen als Donoren für optische FRET-Multiplexmessungen
… besonderen photophysikalischen Eigenschaften von Terbiumkomplexen (LTC) und Quantenpunkten (QD) machen sie zu geeigneten Kandidaten für hochsensitive und störungsarme Multiplex-Abstandsmessungen in biologischen Systemen und Prozessen. Die Abstandsbestimmungen setzen jedoch eine genaueste Kenntnis …
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I. Isomers in Terbium-158 and Holmium-163. Ii. Decay Scheme of Molybdenum-91
Made available in DSpace on 2015-05-12T17:12:10Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 5805420.PDF: 2751750 bytes, checksum: a3e3b624b2c75ed93f6dc9fe80741778 (MD5) Previous issue date: 1958
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Antioxidant studies of fullerene and metallofullerene derivatives and fluorescence studies of terbium-containing metallofullerene derivatives
… derivative was realized by the tri-terbium nitride cluster inside the carbon cage. This saved the multi-step synthesis of the fluorescence probe and maintained the simplicity of the structure of the metallofullerene derivative. These derivatives of terbium-containing metallofullerene …
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Production and separation of medically relevant terbium-161 for radiopharmaceutical applications and recycling of target materials
… production and purification methods for terbium-161 (161Tb) is crucial for advancing targeted radionuclide therapy applications in nuclear medicine. Here, we present two approaches for the production and purification of 161Tb using high-flux neutron irradiation and multi-step …
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Critical Current Enhancement In Magnetic Spin-Transfer Nano-Devices Through Doping With The Rare Earth Terbium
… and dramatically enhance their damping through terbium doping in order to suppress the various spin-transfer effects, to the potential benefit of magnetic hard drive read head technology. This enhancement is much stronger at lower temperatures, and we can understand the 1/T temperature …
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Magnetic and critical behavior of thin terbium(0001)/tungsten(110) films studied by electron capture spectroscopy (ECS)
Epitaxial films of hcp Tb(0001) on bcc W(110) substrates are prepared and their geometric, electronic and magnetic properties are studied. The atomic flatness and cleanness and the single-crystalline state of the W(110) substrates and the Tb films are checked using scanning tunneling microscopy …
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Inelastic Light Scattering Studies of Quantum Phase Transitions in Copper Titanium Diselenium and Multiferroic Terbium Manganese Trioxygen
The second focus of this dissertation is the study of quantum phase transitions in TiSe2 as a function of temperature and Cu-intercalation, and the comparison of the effects of intercalation and pressure on the charge-density-wave (CDW) order in this system. All these parameters---temperature, …
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Spin-Lattice Relaxation of Trivalent Praseodymium, Terbium, and Erbium Inanhydrous Lanthanum-Trichloride: Temperature and Magnetic Field Dependence
Made available in DSpace on 2015-05-12T21:41:47Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6901301.PDF: 4932944 bytes, checksum: 07f65236b3055da1dff7449f95105de0 (MD5) Previous issue date: 1968
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Spin-lattice relaxation of trivalent praseodymium, terbium, and erbium in anhydrous lanthanum trichloride: Temperature and magnetic field dependence
We present the results of our measurements of the spinlattice relaxation rates of several trivalent rare earth ions, in the temperature range 0.25 - 4.2o K. We analyze these results within the framework of the Kronig-Van Vleck-Orbach theory, the main features of which we derive in a semi-rigorous …
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The preparation of lanthanide macrocyclic complexes for use as MRI and luminescence contrast agents
… (e.g. gadolinium(III) or europium(III)/terbium(III)respectively).This thesis describes the design, synthesis and characterisation of multimodality lanthanide imaging agents. The synthesis of a series of lanthanide chelators based on DO3A bearing a benzimidazole or a benzyl derivative …
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Alternative strategies for security labelling/encoding of paper and plastic products.
… Suitable RE dopants were found to be europium, terbium and dysprosium. The ability to triple dope a single glass and to be able to detect all three dopants based on their discrete fluorescence signals and unique fluorescence lifetimes has been achieved with an in-situ detector. This has …
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Development of Tyrosine Kinase Peptide Biosensors and Methods for Detection
… chemifluorescent ELISA-based detection.</p> <p>Terbium (Tb3+) chelation has been used to achieve phosphorylation-dependent luminescence with kinase substrate peptides. Terbium is a hard acid giving it preferred coordination with negatively charge species such as phosphate and carboxylate groups. …
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Photodetachment Studies of Atomic Negative Ions Through Velocity-Map Imaging Spectroscopy
… models.Measurement of the electron affinity of terbium was performed along with a determination of the structure of Tb-. The energy scale for the Tb- photoelectron kinetic energy spectrum was calibrated to the photoelectron kinetic energy spectrum of Cs-, whose electron affinity is well-known …
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Magnetism in crystalline rare-earth compounds
… successfully employed in an investigation of the terbium magnetic sub-lattice in TbMn2O5. The outstanding question in many multiferroics regards the exact microscopic mechanisms at play. Due to the huge potential in technology, this has been the subject of intense debate over that past decade. We …
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Sustainable Development of New Phosphors for Photonics Applications
… properties of CaZnOS crystals singly doped with Terbium and co-doped with Terbium and Europium. By studying the optical properties and the kinetics of recombination with time-resolved luminescence, the de-excitation mechanisms and the charge transfer processes have been established. A fundamental …
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