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Dissertations / Theses on the topic 'Ion Tracks'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 January 2023

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1

Alves, Andrew David Charles, and aalves@unimelb edu au. "Characterisation of Single Ion Tracks for use in Ion Beam Lithography." RMIT University. Applied Sciences, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080414.135656.

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To investigate the ultimate resolution in ion beam lithography (IBL) the resist material poly(methyl methacrylate) PMMA has been modified by single ion impacts. The latent damage tracks have been etched prior to imaging and characterisation. The interest in IBL comes from a unique advantage over more traditional electron beam or optical lithography. An ion with energy of the order of 1 MeV per nucleon evenly deposits its energy over a long range in a straight latent damage path. This gives IBL the ability to create high aspect ratio structures with a resolution in the order of 10 nm. Precise i

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2

Kopniczky, Judit. "Nanostructures Studied by Atomic Force Microscopy : Ion Tracks and Nanotextured Films." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3763.

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3

Spohr, Reimar. "Ion Tracks for Micro- and Nanofabrication : From Single Channels to Superhydrophobic Surfaces." Doctoral thesis, Uppsala universitet, Materialfysik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-111247.

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A method is described for preset-count irradiations between 1 and 100 ions singling-out individual ions from an ion beam with more than a billion ions arriving per second. The ion tracks are etched in a conductometric system with real-time evaluation of the acquired data. The etch process can be interrupted when reaching a preset channel diameter. Cylindrical channels are obtained by adding surfactants to the etch solution forming a self-assembled barrier between etching medium and polymer. Asymmetric etching of single ion tracks leads to pH sensitive conical pores with diode-like properties.

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4

Vlasukova, L. A., V. N. Komarov, V. A. Skuratov, and V. N. Yuvchenko. ""Etchability" of ion tracks in Si02/Si and Si3N4/Si thin layers." Thesis, Sumy State University, 2011. http://essuir.sumdu.edu.ua/handle/123456789/20872.

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We have calculated radii and lifetime of the molten regions or the regions heated to the melting point that are formed under irradiation of amorphous SiO2 and Si3N4 with swift ions. A computer simulation was carried out on the base of thermal spike model. A comparison of calculated track parameters with ion track etching data have been made for these materials. It is shown that an existence of molten region along swift ion trajectory may be a criterion for a track “etchability” in the case of SiO2. In the same conditions of chemical etching diameter of etched tracks in SiO2 is proportio

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Spohr, Reimar. "Ion tracks for micro- and nanofabrication from single channels to superhydrophobic surfaces /." Uppsala : Acta Universitatis Upsaliensis, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-111247.

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6

Niklas, Martin Anthony [Verfasser], and Wolfgang [Akademischer Betreuer] Schlegel. "Cell-fluorescent ion track hybrid detector: A novel hybrid technology for direct correlation of single ion tracks and subcellular damage sites in clinical ion beam / Martin Anthony Niklas ; Betreuer: Wolfgang Schlegel." Heidelberg : Universitätsbibliothek Heidelberg, 2014. http://d-nb.info/1177811294/34.

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7

Dedera, Sebastian [Verfasser], and Ulrich A. [Akademischer Betreuer] Glasmacher. "Visualization of Ion-Induced Tracks in Carbonate Minerals / Sebastian Dedera ; Betreuer: Ulrich A. Glasmacher." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180501101/34.

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8

Kusumoto, Tamon. "Radial electron fluence around ion tracks as a new physical concept for the detection threshold of PADC detector." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAE046/document.

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La structure et le processus de formation des traces latentes dans le poly (allyl diglycol carbonate), PADC, ont été étudiés par spectroscopie FT-IR et par simulation Monte Carlo. La quantité de groupes OH formés est équivalente à la quantité de disparition des groupes éther. L’utilisation de radiations à faible TLE a prouvé que les fonctions carbonyle ne disparaissent que lorsque deux électrons au minimum interagissent avec une seule unité de répétition du polymère. Les résultats obtenus avec des protons de haute énergie permettent de comprendre la différence entre des traces révélables et no

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9

Petrov, Alexander. "Principles of production of new devices for micro- and nanoelectronics on the base of materials with ion tracks." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=975458914.

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10

Khalil, Ali Saied, and askhalil2004@yahoo com. "Heavy-Ion-Irradiation-Induced Disorder in Indium Phosphide and Selected Compounds." The Australian National University. Research School of Information Sciences and Engineering, 2007. http://thesis.anu.edu.au./public/adt-ANU20070716.140841.

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Indium phosphide (InP) is an important III-V compound, with a variety of applications, for example, in light emitting diodes (LED), InP based photonic crystals and in semiconductor lasers, heterojunction bipolar transistors in integrated circuit applications and in transistors for microwave and millimeter-wave systems. The optical and electrical properties of this compound can be further tailored by ion implantation or prospectively by swift heavy ion beams. ¶ Thus knowledge of ion-induced disorder in this material is of important fundamental and practical interest. However, the disorder prod

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11

Delgado, Adriana de Oliveira. "Estudo da formação de rastos nucleares em polímeros." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-26032008-080816/.

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O campo da modificação de materiais, através da implantação iônica, vem crescendo amplamente, impulsionado pelas aplicações tecnológicas na biologia, medicina, eletrônica, e outras áreas. Um dos aspectos relacionados ao entendimento desses novos materiais é a identificação e caracterização dos danos produzidos, após a irradiação. Nesse trabalho, foi proposto estudar as modificações microscópicas, após irradiação com feixe de íons de alta energia, em três diferentes polímeros: o policarbonato(Makrofol KG), com espessura de 8 µm; o polialil diglicol carbonato PADC (CR39), espessura 900 &#18

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Lixandrão, Filho Arnaldo Luis 1983. "Estudos de "annealing" de traços de íons e traços de fissão em muscovita." [s.n.], 2016. http://repositorio.unicamp.br/jspui/handle/REPOSIP/330569.

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Orientador: Sandro Guedes de Oliveira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-31T19:22:36Z (GMT). No. of bitstreams: 1 LixandraoFilho_ArnaldoLuis_M.pdf: 11489211 bytes, checksum: 0e5e2fdcd3551b722c60d418964284ee (MD5) Previous issue date: 2016<br>Resumo: O trabalho consistiu em estudar a muscovita como termocronômetro. Por ter pequena quantidade de urânio, abaixo de 5 partes por milhão, a utilização direta é inviável. Dessa forma, irradiamos placas de muscovita com íons de $^{238}U$ moderados por

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13

Kanike, Vanaja. "“Acid-spike” effect in spurs/tracks of the low/high linear energy transfer radiolysis of water : potential implications for radiobiology and nuclear industry." Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9711.

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Résumé : Les ions hydronium (H3O + ) sont formés, à temps courts, dans les grappes ou le long des trajectoires de la radiolyse de l'eau par des rayonnements ionisants à faible transfert d’énergie linéaire (TEL) ou à TEL élevé. Cette formation in situ de H3O + rend la région des grappes/trajectoires du rayonnement temporairement plus acide que le milieu environnant. Bien que des preuves expérimentales de l’acidité d’une grappe aient déjà été signalées, il n'y a que des informations fragmentaires quant à son ampleur et sa dépendance en temps. Dans ce travail, nous déterminons les conce

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14

Oganesyan, Vartan Rubenovitch. "Untersuchung des Porenöffnungsprozesses latenter Spuren leichter niederenergetischer Ionen in CR-39 mittels elektrolytischer Ätzung." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2005. http://nbn-resolving.de/urn:nbn:de:swb:14-1127996096039-75308.

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Festkörperspurdetektoren (FKSD) auf der Basis von Polymermaterialien sind ein geeignetes Mittel zum Nachweis von Ionenstrahlung [1]. Ebenso können damit Neutronen über ihre sekundären Ionen gemessen werden. Als passive und integrierende Detektoren eignen sie sich insbesondere gut für die Dosimetrie, wobei die geringe bzw. fehlende Empfindlichkeit für Elektronen und Photonenstrahlung ein weiteres Argument für die Anwendungen in gemischten Strahlungsfeldern darstellt. Als passive Detektoren arbeiten FKSD ohne zusätzliche Messelektronik und Stromversorgung. Das macht sie insbesondere für die Pers

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Oganesyan, Vartan Rubenovitch. "Untersuchung des Porenöffnungsprozesses latenter Spuren leichter niederenergetischer Ionen in CR-39 mittels elektrolytischer Ätzung." Doctoral thesis, Technische Universität Dresden, 2004. https://tud.qucosa.de/id/qucosa%3A24576.

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Festkörperspurdetektoren (FKSD) auf der Basis von Polymermaterialien sind ein geeignetes Mittel zum Nachweis von Ionenstrahlung [1]. Ebenso können damit Neutronen über ihre sekundären Ionen gemessen werden. Als passive und integrierende Detektoren eignen sie sich insbesondere gut für die Dosimetrie, wobei die geringe bzw. fehlende Empfindlichkeit für Elektronen und Photonenstrahlung ein weiteres Argument für die Anwendungen in gemischten Strahlungsfeldern darstellt. Als passive Detektoren arbeiten FKSD ohne zusätzliche Messelektronik und Stromversorgung. Das macht sie insbesondere für die Pers

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16

Gehrke, Hans-Gregor [Verfasser], Hans [Akademischer Betreuer] Hofsäss, Christian [Akademischer Betreuer] Jooß, Jörn [Akademischer Betreuer] Große-Knetter, Hans-Ulrich [Akademischer Betreuer] Krebs, Markus [Akademischer Betreuer] Münzenberg, and Michael [Akademischer Betreuer] Seibt. "Electrical characterization of conductive ion tracks in tetrahedral amorphous carbon with copper impurities / Hans-Gregor Gehrke. Gutachter: Hans Hofsäss ; Christian Jooß ; Jörn Große-knetter ; Hans-ulrich Krebs ; Markus Münzenberg ; Michael Seibt. Betreuer: Hans Hofsäss." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2014. http://d-nb.info/1046446479/34.

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17

Schiedt, Birgitta. "Characterization and application of ion track-etched nanopores." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:16-opus-74264.

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18

Lindeberg, Mikael. "High aspect ratio microsystem fabrication by ion track lithography." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2003. http://publications.uu.se/theses/91-554-5515-8/.

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19

Yu, Jie. "Oxidation of ultra high molecular weight polyethylene, UHMWPE, containing traces of cobalt ion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0018/MQ53349.pdf.

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20

KATSUOKA, LIDIA. "Agentes complexantes no controle analitico de tracos de fluoreto por eletrodo ion-seletivo." reponame:Repositório Institucional do IPEN, 1996. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10451.

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Made available in DSpace on 2014-10-09T12:38:53Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:01:57Z (GMT). No. of bitstreams: 1 02809.pdf: 6234365 bytes, checksum: 25107a337d71b51089353992495839d5 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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21

Toimil, Molares Maria Eugenia. "Fabrication and characterisation of copper nanowires electrochemically deposited in etched ion track membranes." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=96362282X.

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22

Schiedt, Birgitta [Verfasser], and Reinhard [Akademischer Betreuer] Neumann. "Characterization and application of ion track-etched nanopores / Birgitta Schiedt ; Betreuer: Reinhard Neumann." Heidelberg : Universitätsbibliothek Heidelberg, 2007. http://d-nb.info/1178796930/34.

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23

Fokin, Maria Alexandra. "Space-Time Analysis of Magmatism: Evidence for a Early Cryogenian Plume Track in Eastern Laurentia." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/35187.

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In the Grenville age basement rocks of Virginia and North Carolina, nearly thirty Cryogenian volcanic/plutonic complexes have been recognized. A-type granites and rhyolites dominate the igneous complexes within the Cryogenian Magmatic Province (CMP), but compositional variations range from gabbro through syenites. The mineralogy, chemical composition and field data including microstructural emphasis suggests emplacement of these igneous complexes in an extensional setting. In this study U/Pb zircon ages of several plutons were determined using secondary ion mass spectrometry. The age

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24

TOAPANTA, PETER DARWIN IZA. "ION DESORPTION DESCRIBED BY AN EXTENDED NUCLEAR TRACK MODEL: APPLICATION TO WATER ICE CLUSTERS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2006. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9157@1.

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CENTRO LATINO-AMERICANO DE FÍSICA<br>A dessorção de íons secundários induzida por impacto de projéteis velozes é um fenômeno de interesse tanto da pesquisa fundamental dos processos de colisão quanto da Física de Superfícies, Biociência e Astrofísica. O modelo teórico de dessorção iônica induzida por elétrons baseado na formação de um traço nuclear é aprimorado no presente trabalho. Considera-se que o traço seja composto por um infratraço de carga positiva e um ultratraço de carga negativa. Ao chegarem na superfície do sólido, os elétrons secundários emanados do infratraço geram íons qu

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Nkosi, Mlungisi Moses. "Preparation and physico-chemical properties of nickel nanostructured materials deposited in etched ion-track membrane." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6214_1182749152.

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<p>The development of finely dispersed powders and superfine-grained materials intended for application in various areas of science and engineering is one of the challenges facing modern nanotechnology. Thus, specific fundamental and applied research was required in order to consolidate advancement made in preparing nano- and submicron crystalline composite materials.</p> <p><br /> Useful templates for electrochemical deposition of nanowires include porous alumina films formed by anodic oxidation of aluminium, nuclear track-etched porous membranes, nanochannel array-glass and mesoporous channe

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Hinrichs, Joachim. "Geochemical tracers in the deep-sea and the North Sea Geochemische Tracer in der Tiefsee und in der Nordsee /." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962793574.

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Cline, David James 1956. "Tracer experiments using bromide ion and two bacteriophages during soil aquifer treatment studies." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278114.

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The fate and transport of a conservative and two bacteriophage tracers during Soil Aquifer Treatment (SAT) has been examined. A 12 foot x 12 foot mini-basin containing seven stainless steel suction samplers ranging in depth from 1 to 20 feet below land surface was constructed in an existing recharge basin. Bromide ion and MS-2 and PRD-1 virus tracers were introduced into the mini-basin during recharge of secondary effluent during three of nine flooding cycles in order to aid in interpreting transport processes and to determine the presence of preferred-flow channels. High infiltration rates an

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28

Adeniyi, Olushola Rotimi. "Ion track modification of polyimide film for development of palladium composite membrane for hydrogen separation and purification." Thesis, University of the Western Cape, 2011. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8563_1330330939.

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<p>South Africa s coal and platinum mineral resources are crucial resources towards creating an alternative and environmentally sustainable energy system. The beneficiation of these natural resources can help to enhance a sustainable and effective clean energy base infrastructure and further promote their exploration and exportation for economics gains. By diversification of these resources, coal and the platinum group metals (PGMs) especially palladium market can be further harnessed in the foreseeable future hence SA energy security can be guaranteed from the technological point of view. The

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29

Zhanbotin, A. Zh, A. S. Yessenbekov, M. M. Saifulin, and V. V. Saiko. "Field Emission from an Array of Free-standing Copper Nanowires Grown in PET Ion-track Membranes." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35319.

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There is a description of field emission from an array of free-standing copper nanowires grown in ion-beamed PET polymer films.Highly oriented, free standing cylindrical and conical copper nanowires were electrochemically grown in the pores of track etched PET films with pore density 1 106cm-2, 2 106cm-2 and 4х107cm-2. Copper nanowires were observed using scanning electron microscope, atomic force and elec-tro-force methods of scanning probe microscope. All of the nanowires showed high efficiency tunneling cur-rent (up to ~ -1uA) from metal samples to positive charged SPM cantilever. When you

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Rauber, Markus [Verfasser], Wolfgang [Akademischer Betreuer] Ensinger, and Christina [Akademischer Betreuer] Roth. "Controlled Synthesis of Nanowire Assemblies by Ion-Track Template Electrodeposition / Markus Rauber. Betreuer: Wolfgang Ensinger ; Christina Roth." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2012. http://d-nb.info/1106113624/34.

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Issa, Ragiab. "Experimental and mathematical modelling of metal ion-humic acid-silicate minerals interactions." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/experimental-and-mathematical-modelling-of-metal-ionhumic-acidsilicate-minerals-interactions(9d8c4096-d93a-4483-9790-4b65c6c2761e).html.

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A series of experiments were performed to study the sorption of humic acid and Eu3+ ion (at trace concentrations) on the minerals: montmorillonite, bentonite, diatomite and kaolinite in ternary systems. Humic acid and europium sorption were investigated as a function of humic acid concentration, ionic strength and pH. There was a strong uptake of humic acid on to the minerals with sorption increasing as humic acid concentration decreases. For montmorillonite, the uptake of discrete size fractions was also studied. It was found that the larger fractions were more strongly sorbing and were bette

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Adeniyi, Olushola Rotimi. "Swift heavy ion irradiation of polyester and polyolefin polymeric film for gas separation application." University of the Western Cape, 2015. http://hdl.handle.net/11394/4929.

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Philosophiae Doctor - PhD<br>The combination of ion track technology and chemical etching as a tool to enhance polymer gas properties such as permeability and selectivity is regarded as an avenue to establish technology commercialization and enhance applicability. Traditionally, permeability and selectivity of polymers have been major challenges especially for gas applications. However, it is important to understand the intrinsic polymer properties in order to be able to predict or identify their possible ion-polymer interactions thus facilitate the reorientation of existing polymer structura

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Rahmanian, Shirin [Verfasser], and Oliver [Akademischer Betreuer] Jäkel. "Application of Fluorescent Nuclear Track Detectors for Cellular Dosimetry in Ion Beam Radiotherapy / Shirin Rahmanian ; Betreuer: Oliver Jäkel." Heidelberg : Universitätsbibliothek Heidelberg, 2020. http://d-nb.info/1210490064/34.

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Ted, Malmgren, and Mojsovski Radovan. "Track It - Utveckling av ett plattformsöverskridande gränssnitt till en spårningsapplikation." Thesis, Malmö högskola, Fakulteten för teknik och samhälle (TS), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20182.

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Hur framgångsrikt ett användargränssnitts design är beror mycket på användares inlärdarutiner och personliga preferenser. Denna studie ämnar ta reda på om skapandet av ettanvändargränssnitt, vilket skall användas i en GPS-spårnings applikation, kan tilltalaanvändare av de största plattformarna (iOS, Android). Android och iOS har deras egnaimplementationer på diverse områden inom gränssnitt och för att skapa en design vilkenbåda ”läger” gillar kräver att en del kompromisser behöver göras. Användargränssnittetskapades med de riktlinjer som Android och iOS rekommenderar i åtanke, tillsammans meda

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Spende, Anne [Verfasser], Christina [Akademischer Betreuer] Trautmann, and Wolfgang [Akademischer Betreuer] Ensinger. "Surface Modification of Etched Ion-Track Polymer Membranes by Atomic Layer Deposition / Anne Spende. Betreuer: Christina Trautmann ; Wolfgang Ensinger." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2016. http://d-nb.info/1112333150/34.

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Cassinelli, Marco [Verfasser], Christina [Akademischer Betreuer] Trautmann, and Wolfgang [Akademischer Betreuer] Ensinger. "Thermoelectric Properties of Bi1-xSbx Nanowires Electrodeposited in Etched Ion-Track Membranes / Marco Cassinelli. Betreuer: Christina Trautmann ; Wolfgang Ensinger." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2016. http://d-nb.info/1112269649/34.

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Lachamp, Philippe. "Organisation et mise en place des synapses glutamatergiques dans le noyau du tractus solitaire du rat." Aix-Marseille 3, 2004. http://www.theses.fr/2004AIX30044.

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Le glutamate est le principal neurotransmetteur excitateur dans le noyau du tractus solitaire (NTS), une structure sensorielle qui reçoit des afférences d'origine viscérale. Nous avons identifié dans le NTS du rat une sous-population de terminaisons glutamatergiques qui co-expriment les deux transporteurs vésiculaires du glutamate (VGluT1 et VGluT2) et montré que cette population correspond à des terminaisons d'origine viscérale. Dans le NTS, la première phase de synaptogenèse se produit avant la naissance. Nous avons identifié deux autres périodes de production synaptique en période postnatal

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Bäckström, Gloria. "Protons, other Light Ions, and 60Co Photons : Study of Energy Deposit Clustering via Track Structure Simulations." Doctoral thesis, Uppsala universitet, Avdelningen för sjukhusfysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-206385.

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Radiotherapy aims to sterilize cancer cells through ionization induced damages to their DNA whilst trying to reduce dose burdens to healthy tissues. This can be achieved to a certain extent by optimizing the choice of radiation to treat the patient, i.e. the types of particles and their energy based on their specific interaction patterns. In particular, the formation of complex clusters of energy deposits (EDs) increases with the linear energy transferred for a given particle. These differences cause variation in the relative biological effectiveness (RBE). The complexity of ED clusters might

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Nguyen, Quoc Hung [Verfasser], Wolfgang [Akademischer Betreuer] Ensinger, and Reinhard [Akademischer Betreuer] Neumann. "(Bio)Molecular Transport and Recognition in Heavy Ion Track-Etched Polymeric Nanopores / Quoc Hung Nguyen. Betreuer: Wolfgang Ensinger ; Reinhard Neumann." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2013. http://d-nb.info/1106454847/34.

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Van, Heerden Michael Rudi. "Improving the selectivity of the radio-labelling of ion exchange resin tracers for positron emission particle tracking." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/24310.

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Positron emission particle tracking (PEPT) is a technique which non-invasively tracks tracer particles labelled with a positron emitting radionuclide in a system of flow. The tracers are tracked through the detection in a PET scanner, of the two nearly collinear 511 keV gamma rays resulting from the annihilations of the positrons. For this technique to be effective, the tracer must be representative of the media in the system under study, and labelled with a sufficient activity of radionuclides. Organic ion exchange resins are suitable tracer materials for PEPT experiments, and are usually lab

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Alruwaili, Manal Abluk. "PERFORMANCE OF THE HEAVY FLAVOR TRACKER (HFT) DETECTOR IN STAR EXPERIMENT AT RHIC." Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1448032801.

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42

Liamsuwan, Thiansin. "Development of Monte Carlo track structure simulations for protons and carbon ions in water." Doctoral thesis, Stockholms universitet, Fysikum, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-81461.

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The goal of radiation therapy is to eradicate tumour cells while minimising radiation dose to healthy tissues. Ions including protons and carbon ions have gained increasing interest for cancer treatment. Advantages of ion beam therapy are conformal dose distribution, and for ions heavier than protons increased biological effectiveness in cell killing, compared to conventional radiation therapy using photons. Despite these advantages, fundamental problems in ion beam therapy include accuracy of dose determination at the cellular level, and characterisation of the radiation quality at the micros

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43

Colin, Michel. "Possibilités d'analyses de traces d'éléments légers par activation aux ions lo urds ¹¹B et ¹⁵N /." Lausanne, 1987. http://library.epfl.ch/theses/?nr=672.

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44

Bertschik, Michael. "The kinematical parameters of minor mergers and their observational traces." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971652759.

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45

Janulyte, Aurika. "Etude physico-électrique et optimisation métrologique d'un spectromètre de masse pour la détection temps réel de traces de dioxines." Aix-Marseille 1, 2007. http://www.theses.fr/2007AIX11040.

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Le spectromètre de masse utilisant un piège à ions nécessitait des améliorations instrumentales en vue d’analyser des molécules plus lourdes (env. 400u) et d’augmenter ses performances métrologiques: résolution/ sensibilité. Une étude systématique des différents étages du spectromètre de masse a été menée pour optimiser la transparence de chaque étage et appréhender les phénomènes qui perturbent la trajectoire des ions lors de leur confinement et conduisent à une dégradation du spectre. Nous avons étudié principalement l’influence des défauts électriques des alimentations et des défauts mécani

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46

Lamotte, Maxime. "Etude du signal optique des chambres à fission et évaluation de son exploitation pour un système de mesure neutronique d'un réacteur de génération IV Development and first use of an experimental device for fission-induced spectrometry applied to neutron flux monitoring SCENA: A simulation tool for radiation-induced gas scintillation Simulation of heavy-ion slowing-down tracks with the SCENA code Design and irradiation test of an innovative optical ionization chamber technology Pulse-reactor core monitoring with an innovative optical neutron detector." Thesis, Université Grenoble Alpes, 2021. http://www.theses.fr/2021GRALI023.

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Cette thèse de doctorat expose l'étude la luminescence induite dans des capteurs à gaz de type chambre à fission, afin d'évaluer son utilisation pour le suivi de puissance des réacteurs nucléaires de quatrième génération comme ASTRID.Le dépôt d'énergie dans un gaz par des ions lourds produits lors de fissions nucléaires dans une chambre à fission est d'ordinaire exploité pour sa capacité à produire des charges libres, qui peuvent être détectées avec des électrodes. Cette méthode, utilisée depuis le début de l'ère atomique, n'est pas sans inconvénients, et des axes d'amélioration ont été claire

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47

Dehon, Christophe. "Méthodes d'ionisation dans un spectomètre de masse FTICR transportable : application à l'analyse de traces et au couplage synchrotron." Paris 11, 2009. http://www.theses.fr/2009PA112360.

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Les techniques de spectrométrie de masse en piège permettent de garder, sélectionner, faire réagir et détecter les particules chargées. Les spectromètres de masse FTICR transportables développés au laboratoire, basés sur des aimants permanents, offrent la possibilité d’utiliser diverses méthodes d’ionisation comme l’impact électronique, l’ionisation chimique ou des méthodes de photoionisation. Durant cette thèse, différentes réactions ion-molécule ont été étudiées dans le but de les appliquer à l’ionisation chimique des composés organiques volatils. Ces méthodes d'ionisation ont ensuite été te

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48

Ucar, Aziz. "Developments for the TOF straw tracker." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=982996195.

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49

Villegas, Navarro Fernanda. "Micro/nanometric Scale Study of Energy Deposition and its Impact on the Biological Response for Ionizing Radiation : Brachytherapy radionuclides, proton and carbon ion beams." Doctoral thesis, Uppsala universitet, Medicinsk strålningsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-279385.

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Research in radiotherapy for cancer treatment focuses on finding methods that can improve the compromise between tumour cell inactivation versus damage to the surrounding healthy tissue. As new radiation modalities such as proton therapy become accessible for everyday clinical practice, a better understanding of the variation in biological response of the tumour and healthy tissues would improve treatment planning to achieve optimal outcome. The development of radiobiological models capable of accurate predictions of biological effectiveness is needed. Existing radiation quality descriptors su

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Krieg, Janina [Verfasser], Christina [Akademischer Betreuer] Trautmann, and Ralph [Akademischer Betreuer] Krupke. "Characterization of individual Bi2Te3 nanowires electrodeposited in etched ion-track membranes for nano-ARPES and electrical transport studies / Janina Krieg ; Christina Trautmann, Ralph Krupke." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2017. http://d-nb.info/1140166115/34.

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