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Title: Master's Thesis: Novel Thermal Emission Using Thermochromic Samarium Nickelate.

Abstract

Abstract not provided.

Authors:
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1367255
Report Number(s):
SAND2017-5277T
653407
DOE Contract Number:
AC04-94AL85000
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English

Citation Formats

Roney, Patrick James. Master's Thesis: Novel Thermal Emission Using Thermochromic Samarium Nickelate.. United States: N. p., 2017. Web.
Roney, Patrick James. Master's Thesis: Novel Thermal Emission Using Thermochromic Samarium Nickelate.. United States.
Roney, Patrick James. Mon . "Master's Thesis: Novel Thermal Emission Using Thermochromic Samarium Nickelate.". United States. doi:.
@article{osti_1367255,
title = {Master's Thesis: Novel Thermal Emission Using Thermochromic Samarium Nickelate.},
author = {Roney, Patrick James},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2017},
month = {Mon May 01 00:00:00 EDT 2017}
}

Thesis/Dissertation:
Other availability
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  • Two novel techniques employing radioisotopes for x-ray emission were studied: internal x-ray emission analysis and low energy proton activation with counting of radioactive x-ray emitters. An inexpensive, sensitive technique for the analysis of a broad range of elements (Z 16 through 47 were studied) was developed by implanting radioisotopes (/sup 3/H, /sup 35/S, /sup 63/Ni, /sup 75/Se, /sup 91/Tc, /sup 125/I, /sup 195/Au) into a sample. These radioisotopes decay by x-ray or ..beta../sup -/ emission which in turn excites characteristic x-rays from elements in the sample. The application of this technique to trace analysis was demonstrated with a multielement standardmore » sample containing 0.1% of Ag, Ni, Cr, Zn, Co, Rb, Sc, Br, Mo, and As. Limits of detection varied with the radioisotope and its specific activity. Low energy proton radioactivation (3.6-6 MeV) with subsequent nondispersive x-ray counting was evaluated for trace analysis. Thick target yields and interference-free detection limits were measured for 15 isotopes. This technique was applied for the determination of V and Ga in NBS glasses doped at the 500 and 50 ppm level. Elemental mapping was accomplished by autoradiography. Data from a Ga doped Si semiconductor sample irradiated with 5 MeV protons showed a spatial resolution of 50-100 ..mu..m, with an ultimate limit of 3-10 ..mu..m.« less
  • Two years of experimental investigation on the subject of spontaneous emission of intermediate-mass fragments is described in this manuscript. A short introduction on this subject and a historical review are presented in chapter 1. In chapter 2, the author describe the experimental methods which led to the observation of /sup 14/C emission in polycarbonate etched-track detectors from the isotopes /sup 222/Ra, /sup 223/Ra, /sup 224/Ra and /sup 226/Ra at the branching ratios with respect to ..cap alpha..-decay of (3.7 +/- 0.6) x 10/sup -10/, (6.1 +/- 1.0) x 10/sup -10/, (4.3 +/- 1.2) x 10/sup -10/ and (2.9 +/- 1.0)more » x 10/sup -11/ respectively. Branching ratio limits for heavy-ion emission from /sup 221/Fr, /sup 221/Ra and /sup 225/Ac were determined to be at < 5.0 x 10/sup -14/, < 1.2 x 10/sup -13/ and < 4.0 x 10/sup -13/ respectively for the 90% C.L. The emission of /sup 24/Ne from /sup 232/U at a branching ratio of (2.0 +/- 0.5) x 10/sup -12/ has been discovered using polyethylene terephthalate etched-track plastics. A confirmation of /sup 24/Ne and/or /sup 25/Ne emission from /sup 233/U at a branching ratio of (5.3 +/- 2.3) x 10/sup -13/ is also reported. In chapter 3, three models of intermediate-mass decay are discussed-the analytic superasymmetric fission model, the model by Shi and Swiatecki, and a model based on a square-well + Coulomb potential.« less
  • In the present work, the Schotten-Baumann reaction conditions were modified to esterify the tertiary hydroxyl group of haloperidol. The rapid synthesis (less than 20 min) makes this procedure applicable to the preparation of esters of haloperidol containing fluorine-18 (t/sup (1/2)/ 110 min), a ..gamma..-emitting radioisotope useful in external scintigraphy. In vivo distribution studies of the synthesized tritiated esters and haloperidol in the rat demonstrated that neither ester prodrug achieved overall higher brain concentration levels than haloperidol. In this study, radiotracer techniques were developed to examine parameters that characterize pressurized aerosols designed to utilize insoluble particles suspended in the aerosol formulation.more » The suspended micro-aggregated bovine albumin microspheres were labelled with iodine-131 (t/sup (1/2)/ 8 days). The techniques developed illustrate the use of short-lived radionuclides for: 1) quantitation of each metered dose; 2) characterization of particle size distribution by the aerosol; and 3) determination of the extent of deposition of the particles in the aerosol and all of its components.« less
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