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Determination of Electric Potential Distribution and Cell Resistance of a Uranium Electrorefining Cell

S.P. Ruhela, S. Agarwal, B. Muralidharan, B.K. Sharma, B.P. Reddy, G. Ravisankar, K. Nagarajan, C.A. Babu, and P. Kalyanasundaram
Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, Tamil Nadu, India

Electrorefining is an electrolytic process for obtaining high purity metal. In this process the impure metal is made anode and the high purity metal is deposited on cathode. Electrorefining is a key step in pyrochemical reprocessing of spent fuel from metal fuel fast reactors. Development of an electrorefining cell, in which processing of 10 kg of simulated spent fuel will be demonstrated, is ...

Simulation of a Magnetic Induction Method for Determining Passive Electrical Property Changes of Human Trunk Due to Vital Activities

H. Mahdavi[1], J. Rosell Ferrer[1]
[1]Universitat Politècnica de Catalunya, Barcelona, Spain

The human body consists of many different types of tissues each with specific passive electrical properties. Vital activities lead to a characteristic change of these properties and geometrical changes. Magnetic induction is a non-contact method which can be used to determine these changes. The method is based on the creation of a primary magnetic field that will produce eddy currents in the ...

Simulation and Fabrication of Wireless Passive MEMS Pressure Sensor

E.A. Unigarro Calpa[1], D.A. Sanz Becerra[1], A. Arciniegas[2], F. Ramirez[1], F. Segura-Quijano[1]
[1]Universidad de los Andes, Bogotá, Colombia
[2]Instituto Barraquer de América, Bogotá, Colombia

A wireless passive pressure sensor and the measurement system were design and simulated using COMSOL 4.3. The sensor is based on MEMS capacitor attached to a planar inductor for wireless powering and readout. An external coil is used for the measuring system. The pressure to be measured compresses the MEMS capacitor and changes sensor\'s resonance frequency. COMSOL 4.3 was used for the analysis ...

Electro Thermal Performance Prediction of Radio Frequency Ablation System for Efficient Cancer Treatment

C. Thiagarajan[1], V. Gnanasekar[2]
[1]ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, Karnataka, India.
[2]Perfint Healthcare Pvt. Ltd, T.Nagar, Chennai, India.

Cancer causes significant human deaths. Radiofrequency ablation is an encouraging procedure for cancer treatment. The objective is to demonstrate the multiphysics simulation methodology. This paper summarizes the problem , governing equations, methodology, assumptions, simulation results and discussion related to the thermal performance prediction of radio frequency ablation on a homogeneous ...

Development of Magnetic Field Components for the Polarisation Option of the Neutron Spectrometer FOCUS

L. Holitzner[1], U. Filges[1], J.P. Embs[2], T. Fennell[2], T. Panzner[1]
[1]Laboratory for Developments and Methods, Paul Scherrer Institut, Villigen, Switzerland
[3]Laboratory for Neutron Scattering, Paul Scherrer Institut, Villigen, Switzerland

We show a new, favourable space-saving method to host a neutron polarizer in the iron-containing monochromator shielding of a time-of-flight spectrometer for cold neutrons. In this poster you can learn e.g., how to create a robust, homogeneous, rectangular magnetic field (here realized by permanent magnet queues inside an iron tube). The time-of-flight spectrometer FOCUS at the spallation ...

3D Multiphysics Modeling of Bulk High-Temperature Superconductors for Use as Trapped Field Magnets - new

M. Ainslie[1], J. Zou[1], D. Hu[1], D. Cardwell[1]
[1]Department of Engineering, University of Cambridge, Cambridge, UK

The authors are currently investigating the use of bulk high temperature superconductors as trapped field magnets (TFMs) in order to increase the electrical and magnetic loading of an axial gap, trapped flux-type superconducting electric machine. In electric machines, the use of superconducting materials can lead to increases in efficiency, as well as power density, which results in reductions ...

Electrical Scale-Up of Metallurgical Processes - new

R. Schlanbusch[1], S. A. Halvorsen[1], S. Shinkevich[1], D. Gómez[2]
[1]Teknova, Kristiansand, Norway
[2]Department of Applied Mathematics & ITMATI, Universidade de Santiago de Compostela, La Coruña, Spain

The problem under investigation is electrical scale-up of a generic metallurgical process for primary metal production through resistive heating of slag by electric current, typically supplied by an AC three-phase system. Maxwell’s equations are analyzed revealing that the properties of the solution is determined by the parameter (L/δ)^2, where L is the linear size of the system and δ is the ...

Reliable Full-Wave EM Simulation of a Single-Layer SIW Interconnect with Transitions to Microstrip Lines - new

J. L. Chavez-Hurtado[1], J. E. Rayas-Sanchez[1], Z. Brito-Brito[1]
[1]ITESO - Universidad Jesuita de Guadalajara, Tlaquepaque, Jalisco, Mexico

We present a procedure to obtain reliable EM responses for a SIW interconnect with microstrip line transitions. The procedure focuses on two COMSOL® configuration settings: meshing size and simulation bounding box. Once both are properly configured, the implemented structure is tested by perturbing the simulation bounding box to ensure it has no effect on the EM responses.

Comparison of Magnetic Barkhausen Noise Tetrapole and Dipole Probe Designs

P. R. Underhill [1], T. W. Krause [1],
[1] Department of Physics, Royal Military College of Canada, Kingston, ON, Canada

COMSOL Multiphysics® software is used to understand the difference in behaviour of two Magnetic Barkhausen Noise (MBN) probes. The dipole probe has to be physically rotated to sample the angular distribution of the MBN. The tetrapole probe uses vector superposition to rotate the magnetic field without probe motion. Using the AC/DC Module and non-isotropic material properties, it was found that, ...

Interactions of Magnetic Particles in a Rotational Magnetic Field

A. Weddemann, A. Auge, F. Wittbracht, S. Herth, A. Hütten
Bielefeld University, Germany

Particle-particle interactions are usually neglected when considering the behaviour of magnetic particle's so called magnetic beads in e.g. a microfluidic device. However, if the particle density exceeds a critical limit, this assumption might not lead to proper results anymore. In this paper the particle-particle interaction of magnetic beads in an external magnetic field will be discussed. It ...