Navigation Links
Let there be light: new magnet design continues magnet lab's tradition of innovation
Date:10/31/2007

TALLAHASSEE, Fla. -- Engineers at Florida State Universitys National High Magnetic Field Laboratory have successfully tested a groundbreaking new magnet design that could literally shed new light on nanoscience and semiconductor research.

When the magnet -- called the Split Florida Helix -- is operational in 2010, researchers will have the ability to direct and scatter laser light at a sample not only down the bore, or center, of the magnet, but also from four ports on the sides of the magnet, while still reaching fields above 25 tesla. By comparison, the highest-field split magnet in the world attains 18 tesla. Tesla is a measurement of the strength of a magnetic field; 1 tesla is equal to 20,000 times the Earths magnetic field.

Magnetism is a critical component of a surprising number of modern technologies, including MRIs and disk drives, and high-field magnets stand beside lasers and microscopes as essential research tools for probing the mysteries of nature. With this new magnet, scientists will be able to expand the scope of their experimental approach, learning more about the intrinsic properties of materials by shining light on crystals from angles not previously available in such high magnetic fields. In materials research, scientists look at which kinds of light are absorbed or reflected at different crystal angles, giving them insight into the fundamental electronic structure of matter.

The Split Florida Helix design represents a significant accomplishment for the magnet labs engineering staff. High magnetic fields exert tremendous forces inside the magnet, and those forces are directed at the small space in the middle . . . thats where Mag Lab engineers cut big holes in it.

You have enough to worry about with traditional magnets, and then you try to cut huge holes from all four sides from which you can access the magnet, said lab engineer Jack Toth, who is spearheading the project. Basically, near the midplane, more than half of the magnet structure is cut away for the access ports, and its still supposed to work and make high magnetic fields.

Magnet engineers worldwide have been trying to solve the problem of creating a magnet with side access at the midsection, but they have met with little success in higher fields. Magnets are created by packing together dense, high-performance copper alloys and running a current through them, so carving out empty space at the heart of a magnet presents a huge engineering challenge.

Instead of fashioning a tiny pinhole to create as little disruption as possible, as other labs have tried, Toth and his team created a design with four big elliptical ports crossing right through the midsection of the magnet. The ports open 50 percent of the total space available for experiments, a capability the laboratorys visiting scientists have long desired.

Its different from any traditional magnet that weve ever built before, and even the fabrication of our new parts was very challenging, Toth said. In search of a vendor for manufacturing the prototypes, I had phone conversations where people would promise me, Jack, we looked at it from every possible angle and this part is impossible to machine.

Of course, that wasnt the case, and the model coil, crafted from a mix of copper-beryllium blocks and copper-silver plates, met expectations during its testing in a field higher than 32 tesla with no damage to its parts.

Though the National Science Foundation-funded model has reached an important milestone, years of work will go into the final product. The lab hopes to have a working magnet for its User Program by 2010, and other research facilities have expressed great interest in having split magnets that can generate high magnetic fields.


'/>"/>

Contact: Jack Toth
toth@magnet.fsu.edu
850-644-0854
Florida State University  
Source:Eurekalert

Related biology technology :

1. High taxes and low rates of entrepreneurship - is there a relationship?
2. Will there be more money for investment credits?
3. Theres a new dynamic in the stem cell debate
4. Are there more Enrons out there?
5. Stem cells raise hopes, but is there money in them?
6. Theres more than a bit of mystery, but attracting Big Pharma is good for the state
7. Theres a surprising, and positive, side to the offshore jobs debate
8. VoIP: Are we there yet?
9. ARE WE THERE YET?
10. High Throughput Plasmid DNA Preparation Using A Magnetic Bead Kit On An Automated Workstation
11. General Notes on Primer Design in PCR*
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Let there be light: new magnet design continues magnet lab's tradition of innovation
(Date:6/27/2016)... June 27, 2016   Ginkgo Bioworks , a ... engineering, was today awarded as one of the ... the world,s most innovative companies. Ginkgo Bioworks is ... the real world in the nutrition, health and ... directly with customers including Fortune 500 companies to ...
(Date:6/24/2016)... Epic Sciences unveiled a liquid biopsy ... PARP inhibitors by targeting homologous recombination deficiency (HRD) ... test has already been incorporated into numerous clinical ... Over 230 clinical trials are investigating ... PARP, ATM, ATR, DNA-PK and WEE-1. Drugs targeting ...
(Date:6/24/2016)... ... , ... Researchers at the Universita Politecnica delle Marche in Ancona combed medical ... mesothelioma. Their findings are the subject of a new article on the Surviving Mesothelioma ... in the blood, lung fluid or tissue of mesothelioma patients that can help point ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, one ... of their brand, UP4™ Probiotics, into Target stores nationwide. The company, which has ... add Target to its list of well-respected retailers. This list includes such fine ...
Breaking Biology Technology:
(Date:5/20/2016)... , May 20, 2016  VoiceIt is excited ... with VoicePass. By working together, VoiceIt ...  Because VoiceIt and VoicePass take slightly different approaches ... increases both security and usability. ... about this new partnership. "This marketing ...
(Date:5/12/2016)... 2016 WearablesResearch.com , a brand of ... results from the Q1 wave of its quarterly wearables ... consumers, receptivity to a program where they would receive ... insurance company. "We were surprised to see ... Michael LaColla , CEO of Troubadour Research, "primarily because ...
(Date:5/3/2016)... 3, 2016  Neurotechnology, a provider of high-precision ... Automated Biometric Identification System (ABIS) , a complete ... MegaMatcher ABIS can process multiple complex biometric transactions ... of fingerprint, face or iris biometrics. It leverages ... and MegaMatcher Accelerator , which have been ...
Breaking Biology News(10 mins):