Design Optimization of Nested Bitter Magnets

Bates, E. M.; Birmingham, W. J.; Romero-Talamás, C.A.

doi:10.1109/tmag.2016.2645158

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…This precursor design method can be used for either nested, split, or solenoid designs. 2 The optimization calculates the theoretical resistance, voltage, and power of the magnet for numerous user-defined constants The filling factor, related to the packing, space, and density factor, is used by designers to describe the cooling hole density in Bitter magnets. [8][9][10] Our magnet designs define the filling factor as the ratio of Bitter arc volume with machined geometry (i.e., arc cutout, cooling, and tie rod holes), V Arc , to the volume of an annulus without machined geometry, V Annulus ,…”

Section: Electromagnetic Optimizationmentioning

confidence: 99%

“…The magnet core design of BETA was determined by analytical design methodologies developed at DPL. 1,2 Presented here are the essential design specifications and analyses of BETA including the magnet core design, fabrication processes, scalable subsystems, and initial experimental results. The experimental results of BETA are used to validate and verify DPL design methodologies.…”

Section: Introductionmentioning

confidence: 99%

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Design and experimental results of the 1-T Bitter Electromagnet Testing Apparatus (BETA)

Bates

Birmingham

Romero-Talamás

2018

Review of Scientific Instruments

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The Bitter Electromagnet Testing Apparatus (BETA) is a 1-Tesla (T) technical prototype of the 10 T Adjustable Long Pulsed High-Field Apparatus. BETA's final design specifications are highlighted in this paper which include electromagnetic, thermal, and stress analyses. We discuss here the design and fabrication of BETA's core, vessel, cooling, and electrical subsystems. The electrical system of BETA is composed of a scalable solid-state DC breaker circuit. Experimental results display the stable operation of BETA at 1 T. These results are compared to both analytical design and finite element calculations. Experimental results validate analytical magnet designing methods developed at the Dusty Plasma Laboratory. The theoretical steady state maxima and the limits of BETA's design are explored in this paper.

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Section: Electromagnetic Optimizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and experimental results of the 1-T Bitter Electromagnet Testing Apparatus (BETA)

Bates

Birmingham

Romero-Talamás

2018

Review of Scientific Instruments

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“…disatukan dengan lembaran pemisah antar pelat yaitu isolator yang terintegrasi dengan sistem pendingin menggunakan air untuk menghindari panas yang dihasilkan dari arus listrik yang besar, [1] [4]. Jika dibandingkan dengan elektromagnet konvensional yang menggunakan gulungan kawat, elektromagnet berbasis pelat tembaga relatif lebih mudah dimodifikasi, oleh karena dngan mudah ditambahkan ataupun dikurangi jumlah lilitan, [5] dalam hal ini pelat tembaga.…”

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Desain Dan Pengembangan Elektromagnet Portabel Berbasis Pelat Tembaga

Wardoyo¹,

Djamal²,

Budiman³

2019

Prosiding Seminar Nasional Fisika (E-Journal) snf2019 Unj

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AbstrakPenemuan elektromagnet telah banyak memberikan pengaruh yang besar terhadap perkembangan ilmu pengetahuan dan teknologi, yang mana oleh karena sifat kemagnetan yang bisa diatur sehingga dapat memberikan manfaat praktis diantaranya motor listrik, relai, generator pembangkit listrik, dan saklar pintu otomatis. Pada penelitian ini dilakukan suatu desain dan rancangan elektromagnet berupa pelat tembaga yang di cetak berbentuk kepingan koin yang terdapat lubang ditengah untuk inti besi. Setiap pelat terdapat isolator yang memisahkan antar tiap pelat yang disusun berulir sehingga terbentuk heliks lilitan pelat tembaga. Hasil eksperimen didapat bahwa rancangan elektromagnet dengan menggunakan pelat tembaga, dapat menghasilkan medan magnet, 0 hingga 4 mTesla, dengan pengukuran menggunakan Gaussmeter. Implikasi pada penelitian ini akan berdampak pada riset fisika maupun ilmu rekayasa yang berkaitan pada penggunaan elektromagnet yang bersifat portabel dan ringkas, selain itu berpotensi untuk dikembangkan agar dapat menghasilkan medan magnet tinggi.Kata-kata kunci: elektromagnet, tesla, pelat, tembaga, magnetik, medan. AbstractThe discovery of electromagnets has had a great influence on the development of science and technology, which is due to the magnetic nature that can be regulated so that it can provide practical benefits including electric motors, relays, generator power plants, and automatic door switches. In this study a design and design of an electromagnet in the form of a printed copper plate was formed in the form of a coin with a hole in the middle for an iron core. Each plate has an insulator that separates between each plate that is arranged in a thread so that a helical coil of copper plate is formed. The experimental results obtained that the electromagnetic design using a copper plate, can produce a magnetic field, 0 to 4 mTesla, with measurements using Gaussmeter. The implications of this study will have an impact on physics research and engineering science related to the use of electromagnets that are portable and compact, besides that they have the potential to be developed in order to produce high magnetic fields. PENDAHULUANPengembangan elektromagnet tipe pelat tembaga pertama kali dikembangkan oleh Francis Bitter di MIT, pada tahun 1936, sehingga dinamakan elektromagnet tipe Bitter. Magnet yang dikembangkan adalah koil berbentuk heliks yang dibentuk oleh tumpuan pelat tembaga yang didesain berbentuk cakram, yang

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Liver tumor ablation enhancement by induction-heating system with bitter-like deep magnetic field coil

Hung

Tai

2022

Review of Scientific Instruments

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The heated metal needle used for tumor thermotherapy is considered crucial for enhancing the practicality of cauterization using electromagnetic induction-heating techniques. In this study, a novel coil capable of producing a deep magnetic field is designed. In the proposed design, the coil structure is improved to enhance the intensity of the coil’s deep magnetic field and its suitability for deep-tissue cauterization. Furthermore, a series of experiments are conducted using a single and consistent input current. The heating experiments are conducted at varying depths by placing the needle beneath the coil. The proposed coil significantly increases the induction-heating temperature and provides a solution to the long-standing problem of insufficient needle temperature. This research has also improved the usability of the induction-heating equipment in the field of deep tumor ablation.

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Design Optimization of Nested Bitter Magnets

Cited by 4 publications

References 25 publications

Design and experimental results of the 1-T Bitter Electromagnet Testing Apparatus (BETA)

Design and experimental results of the 1-T Bitter Electromagnet Testing Apparatus (BETA)

Desain Dan Pengembangan Elektromagnet Portabel Berbasis Pelat Tembaga

Liver tumor ablation enhancement by induction-heating system with bitter-like deep magnetic field coil

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