Magnets Paper

A Pulsed Magnet System for a Field-Reversed Configuration Experiment

Authors: Dennis W. Lieurance, David D. Madura, and Gregory L. Snitchler, Member, IEEE Abstract: From a magnet engineering perspective, the field-reversed configuration (FRC) fusion concept is commercially attractive due to its cylindrical configuration. Essentially, all large coils are solenoidal, which enables efficient structural support and relative ease of manufacturing, thereby enhancing commercial viability. A design [...] Posted in Confinement Coils,Gradient Coils,Magnets,Magnets Paper

MRI Shielding Optimization in Opera – 15 minute overview

In this 15-minute presentation we show the benefits Opera Optimizer offers when used in conjunction with magnetostatic analysis for MRI shielding applications. We also demonstrate the benefits of the new “thin plate” boundary condition, which increases efficiency without compromising accuracy, and how Opera provides the ability for MRI shielded room designers to customize the Modeller [...] Posted in Magnets,Magnets Paper,MRI / NMR Magnets

Magnetic Signature Identification using Pareto optimization

Christopher Riley, Engineering Manager, Cobham Technical Services Abstract Determining the topology of a naval vessel from its measured magnetic signature is a classic inverse problem – what is the source of the observed response? This paper explores an alternative to classical inverse methods with a technique that is used in design optimization. Pareto optimization is [...] Posted in General,Magnets,Magnets Paper

How to design for MRI magnets

In this blog we’ll look at the design of shielding for a known MRI magnet, but also at the solution to developing a model of the magnet when only fringe-field maps are available. The basic ground-work of what has become known as MRI was laid in the 1950’s but it wasn’t until the 1970’s that [...] Posted in How to...,Magnets,Magnets Paper,MRI / NMR Magnets

Optimization in Tri-Axial Degaussing System Design

Authors: Vishal Modagekar, Department of Electrical Engineering Veermata Jijabai Technological Institute Matunga, Mumbai 400019, Abdul Karim Shaikh and Navdeep Singh Abstract: Contemporary ships, made of ferromagnetic materials, under the influence of Earth’s magnetic field produce an underwater magnetic anomaly. This anomaly, often called the magnetic signature, compromises the stealth and safety of the ship and needs to be minimized. […]

Posted in Magnets,Magnets Paper

Focussing Magnets for Drift Tube Linac

Authors: Vikas Teotia , Sanjay Malhotra , Kumud Singh , U.Mahapatra , S.Bhattacharya , G.P.Srivastava2 Shweta Roy , Piyush Jain , P. Singh and S. Kailas Abstract: A linear accelerator comprising of Radio frequency quadrupole (RFQ) and drift tube linac (DTL) is being developed at BARC. The Alvarez type CW DTL accelerates protons from energy […]

Posted in Focusing Magnets,Magnets,Magnets Paper

Electromagnetic design and development of a combined function horizontal and vertical dipole steerer magnet for medium energy beam transport line

Authors: Singh, Kumud (Bhabha Atomic Research Centre, Mumbai (India)); Itteera, Janvin (Bhabha Atomic Research Centre, Mumbai (India)); Ukarde, Priti (Bhabha Atomic Research Centre, Mumbai (India)); Teotia, Vikas(Bhabha Atomic Research Centre, Mumbai (India)); Kumar, Prashant (Bhabha Atomic Research Centre, Mumbai (India)); Malhotra, Sanjay (Bhabha Atomic Research Centre, Mumbai (India)); Taly, Y.K. (Bhabha Atomic Research Centre, Mumbai […]

Posted in Magnets,Magnets Paper

Design and development of permanent magnet based focusing lens for J-band klystron

Authors: Kumud Singh, Janvin Itteera and Priti Ukarde, all at Control Instrumentation Division, Bhabha Atomic research Centre, Mumbai, India Abstract: Applying permanent magnet technology to beam focusing in klystrons can reduce their power consumption and increase their reliability of operation. Electromagnetic design of the beam focusing elements, for high frequency travelling wave tubes, is very critical. The […]

Posted in Magnets,Magnets Paper,Permanent Magnets

MRI main field magnets

Authors: Johan Overweg, Philips Research, Hamburg, Germany Abstract: MRI scanners come in various shapes and they are based on several distinctly different technologies to create the static background field (B0). Whatever the shape and the technology, all B0 magnets for MRI have in common that they generate a strong field, which has, within narrow tolerances, […]

Posted in Magnets Paper,MRI / NMR Magnets
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