Search results for "Solenoid"
showing 6 items of 56 documents
Plasma diagnostic tools for ECR ion sources : What can we learn from these experiments for the next generation sources
2019
International audience; The order-of-magnitude performance leaps of ECR ion sources over the past decades result from improvements to the magnetic plasma confinement, increases in the microwave heating frequency, and techniques to stabilize the plasma at high densities. Parallel to the technical development of the ion sources themselves, significant effort has been directed into the development of their plasma diagnostic tools. We review the recent results of Electron Cyclotron Resonance Ion Source (ECRIS) plasma diagnostics highlighting a number of selected examples of plasma density, electron energy distribution, and ion confinement time measurements, obtained mostly with the second-gener…
Mutual inductance for an explicitly finite number of turns
2011
Published version of an article published in Progress In Electromagnetics Research B, 28, 273-287. Also available from the publisher at http://www.jpier.org/pierb/pier.php?paper=10110103 Non coaxial mutual inductance calculations, based on a Bessel function formulation, are presented for coils modelled by an explicitly finite number of circular turns. The mutual inductance of two such turns can be expressed as an integral of a product of three Bessel functions and an exponential factor, and it is shown that the exponential factors can be analytically summed as a simple geometric progression, or other related sums. This allows the mutual inductance of two thin solenoids to be expressed as an…
Simulación numérica de dinámica relativista de partículas cargadas en campos electromagnéticos empleando el método de Boris
2020
Las aplicaciones basadas en la aceleración de partículas cargadas son muy diversas: colisionadores de partículas, estudios de la estructura molecular y atómica o de las propiedades de materiales, tratamientos contra el cáncer… Por ello, es necesario saber calcular cómo se mueven (y, en consecuencia, qué energía adquieren) estas partículas en presencia de campos electromagnéticos. De esta forma se podrá optimizar el diseño de la estructura aceleradora dependiendo del propósito final que tengan las partículas aceleradas. Vamos a implementar un algoritmo numérico (el método de Boris) que permite resolver numéricamente de forma sencilla la fuerza de Lorentz relativista. Utilizaremos este método…
Observation of the rare B(s)(0) + decay from the combined analysis of CMS and LHCb data.
2015
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported licence.-- et al.
Pienikokoisen metallinpaljastimen kehittäminen kudoksen sisäisten kohteiden paikantamiseen
2018
Luunmurtuman onnistunut paraneminen vaatii murtuma-alueen luiden pysymistä paikallaan ja oikeassa asennossa koko paranemisen ajan. Tämän pakottamiseksi ortopedi voi asentaa potilaan luuhun erilaisia metallisia tukirakenteita, yhden vaihtoehdoista ollessa Kischner piikeiksi tai K-piikeiksi kutsutut pitkät ja ohuet neulat. Luunmurtuman parannuttua piikit tulee poistaa, mutta paranemisen aikana näiden päälle muodostunut luu- ja sidekudos vaikeuttavat piikkien löytämistä ilman tarpeettoman kudosvaurion aiheuttamista potilaalle. Tässä tutkielmassa kerron erityisesti näiden K-piikkien havaitsemiseen kehittämästäni, pienikokoisesta metallinpaljastimen prototyypistä, jonka toiminta perustuu anturin…
The NEXT Project: Towards Production and Investigation of Neutron-Rich Heavy Nuclides
2022
The heaviest actinide elements are only accessible in accelerator-based experiments on a one-atom-at-a-time level. Usually, fusion–evaporation reactions are applied to reach these elements. However, access to the neutron-rich isotopes is limited. An alternative reaction mechanism to fusion–evaporation is multinucleon transfer, which features higher cross-sections. The main drawback of this technique is the wide angular distribution of the transfer products, which makes it challenging to catch and prepare them for precision measurements. To overcome this obstacle, we are building the NEXT experiment: a solenoid magnet is used to separate the different transfer products and to focus those of …