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51	Desenvolvimento e caracterizacao do cristal cintilador de CsI(TI) utilizado como detector de radiacao PEREIRA, MARIA C.C. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:43:10Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:56:08Z (GMT). No. of bitstreams: 1 06146.pdf: 4663857 bytes, checksum: db1a9347b09141dd274ecaacdb19b0be (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP radiation detectors gamma radiation scintillation counters crystal growth cesium iodides thalium bridgman method
52	Vidro comercial como detector e medidor de radiacao num irradiador de grande porte RODRIGUES JUNIOR, ARY de A. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:44:11Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:57:07Z (GMT). No. of bitstreams: 0 / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP GLASS dosemeters radiation detectors IRRADIATION DEVICES DOSIMETRY COBALT 60 GAMMA RADIATION
53	The Effect of Material Properties on Energy Resolution in Gamma-ray Detectors January 2011 (has links) abstract: Nuclear proliferation concerns have resulted in a desire for radiation detectors with superior energy resolution. In this dissertation a Monte Carlo code is developed for calculating energy resolution in gamma-ray detector materials. The effects of basic material properties such as the bandgap and plasmon resonance energy are studied using a model for inelastic electron scattering based on electron energy-loss spectra. From a simplified "toy model" for a generic material, energy resolution is found to oscillate as the plasmon resonance energy is increased, and energy resolution can also depend on the valence band width. By incorporating the model developed here as an extension of the radiation transport code Penelope, photon processes are also included. The enhanced version of Penelope is used to calculate the Fano factor and average electron-hole pair energy in semiconductors silicon, gallium arsenide, zinc telluride, and scintillators cerium fluoride and lutetium oxyorthosilicate (LSO). If the effects of the valence band density-of-states and phonon scattering are removed, the calculated energy-resolution for these materials is fairly close to that for a toy model with a uniform electron energy-loss probability density function. This implies that the details of the electron cascade may in some cases have only a marginal effect on energy resolution. / Dissertation/Thesis / Ph.D. Physics 2011 Physics Electron cascade Fano factor Gamma-ray detectors Monte Carlo Radiation detectors
54	Padronizacao do metodo de dosimetria de doses altas pela tecnica de Ressonancia Paramagnetica Eletronica GALANTE, OCIMAR L. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:50:48Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:58:31Z (GMT). No. of bitstreams: 1 06897.pdf: 3578652 bytes, checksum: 46ebd27453893d2439dcb456e5c270e1 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP DOSIMETRY DOSEMETERS FABRICATION ELECTRON SPIN RESONANCE ALANINES RADIATION DETECTORS PARAFFIN POLYVINYLS POLYETHYLENES
55	Projeto, construção e caracterização de um dosímetro para radiação de nêutrons SOUTO, EDUARDO de B. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:53:02Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:58:56Z (GMT). No. of bitstreams: 0 / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP NEUTRON DOSIMETRY ALBEDO RADIATION DETECTORS THERMOLUMINESCENT DOSIMETRY RADIATION MONITORING ALBEDO-NEUTRON DOSIMETERS
56	Utilizacao de redes neurais artificiais para determinar o tempo de resposta de sensores de temperatura do tipo RTD / Time response of temperature sensors using neural networks SANTOS, ROBERTO C. dos 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:28:08Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:44Z (GMT). No. of bitstreams: 0 / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP REACTOR MONITORIN SYSTEMS ELECTRIC HEATING TEMPERATURE MEASUREMENT SENSORS RADIATION DETECTORS NEUTRAL NETWORKS
57	Desenvolvimento de um sistema dosimetrico para feixes de eletrons de enegias altas SOUZA, CLEBER N. de 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:38:00Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:04:34Z (GMT). No. of bitstreams: 1 05589.pdf: 5500511 bytes, checksum: e678ea0585ad825ea9f71a7ce347adb4 (MD5) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP dosemeters electron beams electrons ionization chambers nuclear physics radiation detection radiation detectors radiation monitoring
58	Desenvolvimento e calibracao de um dosimetro pessoal para neutrons utilizando detectores solidos de tracos nucleares VILELA, EUDICE C. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:40:44Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:14Z (GMT). No. of bitstreams: 1 02811.pdf: 5186762 bytes, checksum: f178f608c95e9fecbaf736562e08dae5 (MD5) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP / FAPESP:94/03409-4 personnel dosimetry calibration neutron detectors radiation detectors radiation doses solid state nuclear track detectors personnel monitoring
59	Sobre a influencia de fatores ambientais nos niveis de radonio em cavernas dos Parques Estaduais do Vale do Ribeira, SP e avaliacao do equilibrio radioativo e fator de equilibrio entre radonio e seus descendentes / On the influence of environmental factors on radon levels in caves of Ribeira Valley State Parks, SP and evaluation of radioactive equilibrium and equilibrium factor between radon and its progeny ALBERIGI, SIMONE 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:33:12Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:13Z (GMT). No. of bitstreams: 0 / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP BRAZIL CAVES RADON PROGENITY RADIATION MONITORING RADIATION DETECTORS SOLID STATE NUCLEAR TRACK DETECTORS ENVIRONMENTAL EFFECTS
60	Estudo espectroscopico nuclear no Sn-117 pela tecnica da correlacao angular BORGES, JOAO B. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:26:00Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:43Z (GMT). No. of bitstreams: 1 11261.pdf: 1447800 bytes, checksum: f0826edbe9dea480c0e4f236affa2502 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP angular distribution angular correlation decay gamma spectrometers radiation detectors plastic detectors tin

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