Global ETD Search
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 14 of 14 for “"LIFETIME MEASUREMENT"”.
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Apparatus for the lifetime measurement of Samarium excited states
… the construction of the apparatus for the measurement of the lifetime of the 9F1 level of Samarium by the Hanle effect ... A technique known as Optogalvanic spectroscopy was used to calibrate the laser wavelength ... A new method for the detection of the atomic beam of some materials is …
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NUCLEAR DEFORMATION IN FISSION FRAGMENTS STUDIED WITH NOVEL IMPLEMENTATIONS OF DOPPLER SHIFT LIFETIME MEASUREMENT TECHNIQUES
… at medium-high spin (8-10ħ) by measuring the lifetime of excited states to determine transition strengths, from which the size of the deformation can be inferred. Particular focus has been devoted to a novel implementation of the Doppler Shift At- tenuation Method (DSAM) for the measurement of …
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Development of the single-molecule tracking and fluorescence lifetime techniques for biophysical measurements and biomedical applications
… 3D single-molecule tracking (3D-SMT) and lifetime measurement methods that can follow individual DNA molecules diffusing inside a mammalian cell and observe multiple annealing and melting events on the same molecules (Chapter 2). By comparing the hybridization kinetics of the same DNA …
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Methods to Investigate Hyperthermia Induced By Tumor Treating Fields
… T dish using picoquant confocal microscope. Lifetime measurement of the dye clearly suggests that temperature does increase in the cells with time.</p>
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Alignment of the LHCb Vertex Locator and lifetime measurements of two-body hadronic final states
Lifetime measurements offer excellent opportunities for precision tests of the Standard Model of Particle Physics as well as for discovery of effects involving particles beyond the Standard Model. This thesis presents a method for measurements of lifetimes and lifetime ratios and its application to …
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Advanced Characterization of Defects in Silicon Wafers and Solar Cells
… of bulk defects in silicon. Injection dependent lifetime spectroscopy, a technique characterizes defects from the measured charge carrier lifetime, is the main technique investigated and ameliorated in this thesis. However, other techniques are also applied together with injection dependent …
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Techniques to Characterize Vapor Cell Performance for a Nuclear-Magnetic-Resonance Gyroscope
… for gyro performance is the longitudinal spin lifetime of polarized xenon atoms in the vapor cell. The newly implemented technique for measuring these lifetimes matches results from the industry standard method to within 3.5% error while reducing the average testing time by 76% and increasing …
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FLORESCENCE AND unconversion IN CAF[2]:HO[3+]
… recorded at liquid nitrogen temperatures. Lifetimes of certain new fluorescence lines were determined. From the lifetime data, the corresponding single-ion sites of the fluorescence lines were· assigned. A concentration dependence study of the fluorescence intensities of a manifold and an …
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Lifetime measurements of the 2^{+}_{1} states in even-even platinum isotopes with A = 180-186
… would benefit from further investigation. The lifetimes of 2^+_1 states and the B(E2; 2^+_1\rightarrow0^+_1) reduced transition strengths are valuable to give insight into the magnitude of the nuclear deformations and their shape. However, there are significant discrepancies in 2^+_1 lifetimes …
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Lifetime measurements of the 2^{+}_{1} states in even-even platinum isotopes with A = 180-186
… would benefit from further investigation. The lifetimes of 2^+_1 states and the B(E2; 2^+_1\rightarrow0^+_1) reduced transition strengths are valuable to give insight into the magnitude of the nuclear deformations and their shape. However, there are significant discrepancies in 2^+_1 lifetimes …
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Design and implementation of high linearity FPGA-TDCs and an integrated large scale TCSPC system for time-resolved applications
… counting (TCSPC) technology is a vital, advanced measurement and analytical tool for time-resolved biomedical, physics research and many industry areas because of its high temporal resolution and sensitivity. Analogue-based conventional TCSPC systems have been commercialised and applied in …
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New photonic imaging systems for biomedical applications
… with a bi-exponential function to determine the lifetime values. Planar phosphorescent O2 sensors and a resolution plate mask were used to characterize the imager. The performance and resolution of the imager were optimized with different image processing techniques, and the spatial and temporal …
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ΦΑΙΝΟΜΕΝΑ ΑΛΛΗΛΕΠΙΔΡΑΣΗΣ ΠΛΑΣΜΑΤΟΣ ΧΑΜΗΛΗΣ ΠΙΕΣΗΣ ΚΑΙ ΜΕΤΑΛΛΙΚΗΣ ΕΠΙΦΑΝΕΙΑΣ
… A NITROGEN PLASMA WITH A METAL SURFACE . L.I.F MEASUREMENTS INDICATE A QUASILINEAR DECREASE OF THE N2+ (B2 ΣU+)U=0 LIFETIME NEAR THE CATHODE. AN INTERPRETATION OF THIS PHENOMENON AND A NUMERICALSIMULATION IS DISCUSSED IN THIS PART. THE CALCULATED VALUES ARE IN GOOD AGREEMENT WITH EXPERIMENTAL …