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2 edition of computational study of Gabor zone plate gamma ray holography found in the catalog.

computational study of Gabor zone plate gamma ray holography

Clare Estelle Jackson

computational study of Gabor zone plate gamma ray holography

by Clare Estelle Jackson

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Published by University of Birmingham in Birmingham .
Written in English


Edition Notes

Statementby Clare Estelle Jackson.
The Physical Object
Pagination230 p. :
Number of Pages230
ID Numbers
Open LibraryOL18676901M

View Gamma Rays Research Papers on for free. AGN account for one-third of all known very-high-energy (VHE) gamma-ray sources and are nearly the only objects we can detect at these energies that are not located in our own galaxy. CTA aims to measure large samples of such active galaxies, and galactic black holes, to study particle acceleration and gamma-ray emission processes.

Gamma ray logging is a method of measuring naturally occurring gamma radiation to characterize the rock or sediment in a borehole or drill hole. It is a wireline logging method used in mining, mineral exploration, water-well drilling, for formation evaluation in oil . Originally, the electromagnetic radiations emitted by X-ray tubes almost invariably have a longer wavelength than the gamma rays emitted by radioactive nuclei [3]. X-ray and gamma rays can be distinguish on the basis of wavelength. With radiation shorter than some arbitrary wavelength such as m defined as gamma rays [4].

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Computational study of Gabor zone plate gamma ray holography by Clare Estelle Jackson Download PDF EPUB FB2

UBIRA ETheses - A computational study of Gabor zone plate gamma ray holography Gamma ray zone plate holography is a new technique with applications to Nuclear Medicine. Unlike other tomographic techniques three dimensional images can be reconstructed from just one projection.

Abstract: Gamma ray zone plate holography is a new technique with applications to Nuclear Medicine. Unlike other tomographic techniques three dimensional images can be reconstructed from just one projection. The history of zone plate holography is reviewed and the differences between this technique and conventional holography are : Clare Estelle Jackson.

Abstract Gamma ray zone plate holography is a new technique with applications to Nuclear Medicine. Unlike other tomographic techniques, three-dimensional images can be reconstructed from just one projection.

The history of zone plate holography is reviewed, and the differences between this technique and conventional holography are : C E Jackson. Gamma ray zone plate holography is a new technique with applications to Nuclear Medicine.

Unlike other tomographic techniques three dimensional images can be reconstructed from just one projection. The history of zone plate holography is reviewed and the differences between this technique and conventional holography are : Clare Estelle Jackson.

A new technique is developed to image IR sources by holography using a binary Gabor zone plate. The hologram consists of superimposed shadows of the binary Gabor zone plate cast by IR sources.

The reconstruction is carried out by using Fast Fourier Transforms. The scaling produced by the zone plate encoded technique is indicated and a correction for this can be easily made using a : Yuji Shen, T.

Beynon. SINCE the publication of the papers of Gabor on diffraction microscopy1,2, work has been going on in this Laboratory on the effect of varying the source-hologram distance and the hologram size on.

The Gabor zone plate for visible light could be achieved by optical methods, for example, the hologram produced by a plane wave shining on a single elastic point scatterer could act as a Gabor zone plate. Though it is attractive, no Gabor zone plate has been found to be used in focusing X-ray or other areas, owing to the technological impossible to meet the demand of sinusoidal transmittance function for X-ray.

A quantitative study on the effects of partial coherence on holography is then very important and practical for X-ray holography, and it will also be valuable to the development of a table-top X-ray holography facility with laser-plasma X-ray sources.

18 J. Cheng, S. Han /Optics Communications () In the present paper this problem. Case Study of the Performance of a Gamma-Ray Event Parameterization Application Eric Tyson,[email protected] Abstract Performance analysis is a critical component of the development of applications in high-performance scientific data processing, real-time, and other fields of performance-oriented computing.

Analysis benefits. SINCE the publication of the papers of Gabor on diffraction microscopy 1,2, work has been going on in this Laboratory on the effect of varying the source-hologram distance and the hologram size on the position of the reconstituted image.

It proves possible to represent the information obtained in a very simple way by the use of an instructive analogy. Gabor’s holography at sea Gabriel Popescu 1 Inpredating lasers by more than a decade, Gabor proposed a “new microscopic principle”,whichwasinitially aimed at correcting spherical aberrations in electron hemethodhasnotproducedan impact in its originally intended field, it.

there will be a threshold gamma ray energy below which the scintillation counter is insensitive to gamma rays.

Scintillation counters are relatively small devices, which means that the gamma ray tool can have a high vertical resolution. Calibration Intuitively, we might expect the units for gamma ray logging to be in gamma counts per second. Near-field designs of Fresnel and Gabor zone plates are computationally analyzed by using versions that allow the foci to be brought closer to the plate than in the usual far-field applications.

Gamma-ray astronomy can be used to study the most extreme environments that exist in the universe, and may also provide a number of unique laboratories for exploring the fundamental laws of physics at energies beyond the reach of earth-bound particle accelerators.

gamma-ray emission. This is a somewhat —ne line in that some unidenti—ed gamma-ray sources could be due to extended emission from supernova remnants, the MeV emission from the LMC is certainly from diƒuse emission, and we have included a few objects such as o Oph and Orion that are diƒuse.

At the present level of gamma-ray. The PDS: a study of the development and stabilisation of the PDS as an eastern German regional party, - University of Birmingham. Ph.D. Jackson, Clare Estelle (). A computational study of Gabor zone plate gamma ray holography. University of.

Europe PMC is an ELIXIR Core Data Resource Learn more >. Europe PMC is a service of the Europe PMC Funders' Group, in partnership with the European Bioinformatics Institute; and in cooperation with the National Center for Biotechnology Information at the U.S.

National Library of Medicine (NCBI/NLM).It includes content provided to the PMC International archive by participating publishers. under study [12,13]. In this Letter, we present a new (to our knowledge) approach aimed at recovering the complex amplitude of the wavefront incoming from the sample in digital inline holography by using phase shifting without an additional reference arm.

This approach is based on a Gabor-like setup but having two additional elements. cal approach towards the existing gamma-ray measurements of SNRs.

Indeed, gamma-ray emission is expected from the vicinity of SNRs due to the interactions of escaping particles with ambient gas, especially (but not only) if the gas is struc-tured in massive molecular clouds (Gabici et al).

The study of such emission is of paramount. Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications for Gabor’s hologram in a modern perspective American Journal of the idea of dividing the imaging process into two steps was inspired by Sir W.

Bragg’s x-ray microscope. Holography is a two-step process: 1) writing the hologram, which involves recording on film the amplitude and phase information, and 2) reading the hologram, by which the hologram is illuminated with reference field similar to that in step 1.

Gabor’s original setup for writing the hologram. The gamma ray tool was the first nuclear log to come into service, around (see Fig. 3). Gamma ray logs are used primarily to distinguish clean, potentially productive intervals from probable unproductive shale intervals.

The measurement is used to locate shale beds and quantify shale volume. Optical elements based on Fresnel zones are used in a range of applications, from X-ray telescopy to microscopy and recently also in the manipulation of de Broglie matter waves. In Beynon and co-workers presented a binary Gabor type zone plate (henceforth referred to as the Beynon Gabor zone plate).