TRIUMF, Canada’s nuclear and particle physics research laboratory is currently in development of an Advanced Rare Isotope Facility (ARIEL) that will contain a newly designed electron target station. The target at this station is susceptible to destruction from instantaneous spot heating of the beam. To mitigate this, a raster system consisting of two AC electromagnets was proposed. The two magnets will work in tandem, vertical and horizontal, bending to produce raster patterns at 10 kHz. Since complex patterns consist of harmonics higher than the fundamental frequency, a design frequency of 100 kHz was chosen. AC current causes eddy currents which lead to the skin effect, causing high frequency current to concentrate on the outside of the conductor. To address this, a conductor diameter smaller than the skin depth at the given frequency must be chosen. This led to the choice of litz wire consisting of 400 insulated strands for the conductor. The radiation resistance insulation ethylene tetrafluoroethylene (ETFE) was chosen for these conductors and a 3D printed polyethylene sulfide (PPS) will be used for the coil bobbins. The effects of eddy currents were eliminated from the core material by choosing ferrite, an amorphous material consisting of iron-oxide crystals. Simulations were completed to ensure a homogenous magnetic field in the region of the beam, and the subsequent pole profile was determined. Lastly, a metalized ceramic beampipe is used to integrate with the existing beamline and allow for discharge of any static buildup on the inner surface of the beampipe due to the electron beam. / Graduate

Radioactive isotopes enable advanced medical treatments and the study of nuclear structure, nuclear astrophysics, and fundamental symmetries. TRIUMF, Canada’s Particle Accelerator Centre, generates radioactive isotope beams using the Isotope Separation On-Line method. At TRIUMF, the Forced Electron Beam Induced Arc Discharge (FEBIAD) ion source is used to ionize specific isotopes but often presents limited performance and lower efficiencies compared to other facilities. To investigate the source limitation, elucidate the ionization mechanism, and propose improved and highly efficient sources for upcoming facilities, a combined numerical and experimental campaign has been undertaken. The developed numerical ionization model is able to describe the source as an electron impact ion source that is governed by strong space charge effects. The spatially distributed ionization rate is higher at specific locations of the anode volume, and this has been confirmed experimentally. The validated numerical model has been further used to propose simulation-based optimizations. With the overall optimization, the ionization efficiency for the TRIUMF FEBIAD is expected to increase ten-fold. / Graduate

Submitted by isabela.moljf@hotmail.com (isabela.moljf@hotmail.com) on 2016-08-04T18:39:27Z No. of bitstreams: 1 daianapereiraneto.pdf: 1071648 bytes, checksum: 152571cc6485ecff067705b4a15e758c (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-08-05T11:49:43Z (GMT) No. of bitstreams: 1 daianapereiraneto.pdf: 1071648 bytes, checksum: 152571cc6485ecff067705b4a15e758c (MD5) / Made available in DSpace on 2016-08-05T11:49:43Z (GMT). No. of bitstreams: 1 daianapereiraneto.pdf: 1071648 bytes, checksum: 152571cc6485ecff067705b4a15e758c (MD5) Previous issue date: 2013-08-28 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O objetivo dessa dissertação é historiar o uso das personagens Próspero, Ariel e Caliban, provenientes da penúltima peça de Shakespeare, A Tempestade, na América Latina, desde o final do século XIX até fins do século XX. Para alcançar tal objetivo o trabalho foi dividido em quatro capítulos. O primeiro busca analisar as características mais marcantes da peça A Tempestade, bem como seu autor, Willian Shakespeare. O segundo capítulo analisa a interpretação de três autores: Paul Groussac, Rubén Darío e José Enrique Rodó. Esses autores foram os primeiros a utilizar as personagens em solo americano a partir da Guerra Hispano-Americana de 1898. O terceiro capítulo tem como objetivo compreender a diferença no uso das metáforas shakespearianas nas décadas de 1960 e 1970. Elencamos novamente três autores para historiar essa nova percepção: George Lamming, Aimé Césaire e Roberto Fernández Retamar. O quarto e último capítulo analisa a obra O Espelho de Próspero, do historiador norte-americano Richard Morse / This essay aims to record the use of the characters Próspero, Ariel and Caliban, from the penultimate Shakespeare’s play, The Tempest, in Latin America, during the century XIX and XX century. In order to achieve this aim, it was divided in four chapters. The first one intends to approach the main characteristics of The Tempest, and of its author, Willian Shakespeare. The second one analyses three authors’ interpretations: Paul Groussac, Rubén Darío and José Enrique Rodó. These thinkers are chronolycaly the first to use the characters on American land, which is marked by the Hispano-American War of 1898. The third chapter aims to understand the differences in the use of the Shakespearians metaphors in the 1960’s and 1970’s. Again, it selects three authors to record this new perception: George Lamming, Aimé Césaire and Roberto Fernández Retamar. The fourth and last chapter analyses the essay O Espelho de Próspero, by the North American historian Richard Morse.

La presente investigación pretende dilucidar ciertas relaciones entre los mecanismos operantes en un tipo de literatura contemporánea chilena que, particularmente, llama la atención por erigirse en una esfera genérica textual ambigua, a partir del criterio distintivo tradicional. Es decir que, los límites de tal distinción, en un segundo acercamiento al texto, se difuminan, configurando un discurso híbrido, que, en su propia actualización literaria, insta tácitamente al lector a dar un siguiente paso en la indagación de los presupuestos y enunciados latentes. Decimos “híbrido” en el sentido en que sus elementos discursivos provienen tanto de la literatura como de la historia . Probablemente nos preguntaremos cómo dos registros, aparentemente lejanos, pueden converger en un mismo ámbito textual, pues bien, intentaremos constatar que tal distancia se presenta solo a nivel de superficie, mientras que en profundidad, dichos elementos logran corresponderse e incluso identificarse. Baste decir que tal presunción se sustenta, básicamente, en que ambos registros comparten el ser sustancialmente discurso.

This study focuses on analyzing and discussing the interpretation of the vocal chamber music Ariel by the 20th century American composer Ned Rorem. (1923-) In 1971, Rorem was commissioned to compose a vocal chamber music for soprano, clarinet and piano by one of his good friend, an American well-known soprano, Phyllis Curtin(1921) . He picked up five pieces of works from the anthology, Ariel, of Sylvia Plath(1932-1963), the American female poet, for this composition. With a tie-in of Plath¡¦s poems and the poetry¡¦s life experience, Rorem used various musical language to reveal the sorrow and frustration in the mind of a woman whose husband has affair, and also the ideology of death in these poems . This essay consists of five parts: 1. Composer Ned Rorem¡¦s life, 2. Rorem and his art songs, 3. Poet Sylvia Plath's life, 4. The composed background of the vocal chamber music, Ariel, 5. Analysis and interpretations of the five lyrics and songs of Ariel. Through my study of Ned Rorem¡¦s Ariel, I hope to assist the readers having a better understanding to this work, as well as providing useful ideas for the interpreta-tion.

Made available in DSpace on 2014-12-17T15:06:53Z (GMT). No. of bitstreams: 1 JoseMTJR_DISSERT.pdf: 1250053 bytes, checksum: 1c2730a4bd584ab86c235050f38b5f11 (MD5) Previous issue date: 2011-09-23 / This dissertation aims at investigating the book Ariel (1965), written by Sylvia Plath, as a kind of performative and ritual poetry that fragments and reconstructs the personal experience, manipulating the memory of the autobiographical body as a way to rehearse and restore subjectivity. We propose that, in Ariel, the hyperbolic, transcendent and parodic transfiguration of real episodes, used as literary substance, corrupts and subverts the specular idea of a confessional truth usually related to the writer s work. Our objective is to examine signs of confluence between Sylvia Plath s poetry and performance art, departing from de idea that the spectacularization of the self, the exhibition of private rituals, the theatricalization of autobiographical circumstances and the undressing of one s craziness and vulnerability are mutual procedures to the poet and the perfomer. Simultaneously unfolding between the inside and the outside of the poem, Sylvia Plath s real suicide and the death and rebirth rituals performed in the literary text appear as symbolic elements that might reveal the performer s liminal space, where reality and representation coexist, and where the performative testimony does not frame only the real subject s body but also his/her infinite possibilities of being restored through art. / Esta disserta??o prop?e investigar a escritura do livro Ariel (1965), de Sylvia Plath, como um tipo de poesia perform?tica e ritual que fragmenta e reconstr?i a experi?ncia privada, manipulando a mem?ria do corpo autobiogr?fico como forma de ensaiar e restaurar a subjetividade. Nossa proposta assume que, em Ariel, a transfigura??o hiperb?lica, par?dica e transcendente de epis?dios reais, utilizados como mat?ria liter?ria, subverte e corrompe a id?ia especular de uma verdade confessional habitualmente relacionada ? obra da escritora. Nosso objetivo ? examinar pontos de conflu?ncia entre a poesia de Sylvia Plath e a performance art, partindo da id?ia de que espetaculariza??o do self, a exibi??o de rituais ?ntimos, a teatraliza??o de circunst?ncias autobiogr?ficas e o desnudamento da loucura e da vulnerabilidade do sujeito, s?o procedimentos comuns ? poeta e ao performer. Desdobrando-se simultaneamente entre o dentro e o fora do poema, o suic?dio real da poeta e os ritos de morte e ressurrei??o performados no texto liter?rio afiguram-se como elementos simb?licos capazes de revelar o espa?o liminar do performer, onde o real e a representa??o coexistem, e onde o testemunho perform?tico n?o emoldura apenas o corpo real do sujeito mas suas infinitas possibilidades de restaura??o atrav?s da arte.

Informe de Seminario para optar al grado de Licenciado en Lengua y Literatura Hispánica mención Literatura / El presente informe es fruto de lecturas, análisis y debates que surgieron durante el desarrollo del seminario de grado “Temas de la literatura Hispanoamericana contemporánea”. El cómo la literatura abarca el problema de la historia y la sociedad sin dejar fuera su propia especificidad, ha sido una de las constantes problemáticas, que, diferentes escritores han trabajado a lo largo del siglo pasado. El cuestionamiento, acerca de rol del escritor como ente activo en los procesos sociales, políticos y culturales, logró que la producción literaria de la época, se convirtiera en una nueva forma de ver y pensar la sociedad. Es por lo anterior, que en este informe se eligió trabajar la novela La Nana y el iceberg de Ariel Dorfman. A través de ésta, Dorfman se encarga de develar y denunciar la falsa modernización que se lleva a cabo en el Chile de la Transición.

Female identity in Sylvia Plath’s Ariel collection (first published in 1965) is a complex site of being and becoming within a 1950s culture of performance. From a twenty-first century perspective, this dissertation bridges traditional and contemporary readings of Plath and the Plath archive through a referencing of motifs such as celebrity, ‘the gaze’, ventriloquism and clothing. The inter-discursive approach used – literary, psychoanalytic, cultural – attempts to underline the ongoing significance of Plath’s place as a woman poet in literary studies. / Thesis (M.A.)-University of KwaZulu-Natal, Durban, 2010.

A megawatt class electron linear accelerator (e-linac) will be constructed at TRIUMF as part of the new ARIEL facility which will produce rare ion beams for the study of nuclear structure and astrophysics, and material science. The 50MeV, 10mA, continuous wave e-linac will drive gamma ray induced fissioning of a Uranium target for the production of neutron rich beam species. View Screens located at a number of places along the e-linac beam-line will acquire two dimensional images of the transverse electron beam profiles, providing measurements of the size, position, and shape of the incident e-linac beam. The design of the View Screens will be presented, based on design studies and simulations performed to evaluate the performance of the View Screens under various operating conditions. These studies include GEANT simulations of the energy loss and scattering of the electron beam as it passes through the scintillation and Optical Transition Radiation beam targets, the subsequent thermal response of the targets, and a ray tracing optics simulation to optimize the configuration of the imaging optics. Bench test have been performed on the resulting optics design to evaluate the imaging characteristics, verifying fulfillment of the design requirements. Construction of a prototype View Screen device is currently underway, with beam tests scheduled for Fall 2011. A total of 14 View Screens will be constructed and installed along the e-linac beam-line. / Graduate

Tesis para optar al grado de Magíster en Literatura / Durante la década de los 60 se comienza a gestar en Chile una nueva generación de narradores que proponía una separación de sus predecesores, sobre todo los más inmediatos, los de la generación del 50 que, con nombres tan influyentes como José Donoso, Jorge Edwards y Enrique Lafourcade, tenían copado el espacio que ofrecía la prensa escrita y estaban en el ojo del debate público con sus polémicas literarias. En esta polémica, Ariel Dorfman cumple un papel especial, primero como estudioso de la novela chilena, análisis que entrega en forma de artículos, y luego, como culminación de esa tarea, con la publicación de Moros en la costa, su primera novela, aparecida en el año 1973. El proyecto de esta generación, al año de la publicación de esta novela, no había encontrado aún su madurez aunque, según los críticos de la época, seguía un camino auspicioso. El golpe de Estado del 11 de septiembre de 1973 interrumpió el desarrollo de este proyecto narrativo, modificando el referente histórico y el compromiso que una línea de esta generación había adquirido con las transformaciones en todo ámbito que planteaba la Unidad Popular. Es por esto que este trabajo se enfoca en el panorama narrativo chileno entre los años 1970-1973, años en los que gobernó la coalición de izquierda liderada por Salvador Allende. Acá, se propone una lectura de la primera novela de Dorfman, a la luz de la polémica generacional que instauran los novísimos narradores respecto a los modelos narrativos anteriores y especificando los recursos mediante los cuales propone una superación de esos modelos, para finalmente relacionar esta renovación en las letras con las transformaciones a nivel político social que lideraba el gobierno de la Unidad Popular.