Magnetics Business & Technology - May/June 2020 - 20

RESEARCH & DEVELOPMENT

Fermilab Achieves World-Record Field Strength for Accelerator Magnet

Fermilab recently achieved a magnetic field strength of 14.1 teslas at 4.5 kelvins on an accelerator steering magnet - a world record.
Photo: Thomas Strauss
To build the next generation of powerful proton accelerators,
scientists need the strongest magnets possible to steer particles close to the speed of light around a ring. For a given ring
size, the higher the beam's energy, the stronger the accelerator's magnets need to be to keep the beam on course.
Scientists at the Department of Energy's Fermilab have announced that they achieved the highest magnetic field strength
ever recorded for an accelerator steering magnet, setting a
world record of 14.1 teslas, with the magnet cooled to 4.5 kelvins or minus 450 degrees Fahrenheit. The previous record of
13.8 teslas, achieved at the same temperature, was held for 11
years by Lawrence Berkeley National Laboratory.
That's more than a thousand times stronger magnet than the
refrigerator magnet that's holding your grocery list to your
refrigerator.
The achievement is a remarkable milestone for the particle
physics community, which is studying designs for a future collider that could serve as a potential successor to the powerful
17-mile-around Large Hadron Collider operating at CERN laboratory since 2009. Such a machine would need to accelerate
protons to energies several times higher than those at the LHC.
And that calls for steering magnets that are stronger than the
LHC's, about 15 teslas.

20

Magnetics Business & Technology *

May/June 2020

"We've been working on breaking the 14-tesla wall for several years, so getting to this point is an important step," said
Fermilab scientist Alexander Zlobin, who leads the project at
Fermilab. "We got to 14.1 teslas with our 15-tesla demonstrator magnet in its first test. Now we're working to draw one more
tesla from it."
The success of a future high-energy hadron collider depends
crucially on viable high-field magnets, and the international
high-energy physics community is encouraging research toward
the 15-tesla niobium-tin magnet.
At the heart of the magnet's design is an advanced superconducting material called niobium-tin.
Electrical current flowing through the material generates a
magnetic field. Because the current encounters no resistance
when the material is cooled to very low temperature, it loses no
energy and generates no heat. All of the current contributes to
the creation of the magnetic field. In other words, you get lots of
magnetic bang for the electrical buck.
The strength of the magnetic field depends on the strength of
the current that the material can handle. Unlike the niobium-titanium used in the current LHC magnets, niobium-tin can support
the amount of current needed to make 15-tesla magnetic fields.
But niobium-tin is brittle and susceptible to break when subject

www.MagneticsMag.com


http://www.MagneticsMag.com

Magnetics Business & Technology - May/June 2020

Table of Contents for the Digital Edition of Magnetics Business & Technology - May/June 2020

Magnetics Business & Technology - May/June 2020
Contents
Editor’s Choice/ Features
Magnetics Technology Flying High, Hot & Cold in Solar Orbiter Mission to the Sun
Carpenter Technology Moves Forward in Soft Magnetics and Additive Manufacturing, Exclusive Interview with CEO Tony Thene
Technique Uses Magnets and Light to Control, Reconfigure Soft Robots
Research & Development
Product News
Industry News
Annual Industry Resource Guide
Events Calendar/ Advertising Index
Magnetic Field at Martian Surface Ten Times Stronger than Expected
Visions
Magnetics Business & Technology - May/June 2020 - Magnetics Business & Technology - May/June 2020
Magnetics Business & Technology - May/June 2020 - Cover2
Magnetics Business & Technology - May/June 2020 - Contents
Magnetics Business & Technology - May/June 2020 - Editor’s Choice/ Features
Magnetics Business & Technology - May/June 2020 - 5
Magnetics Business & Technology - May/June 2020 - Magnetics Technology Flying High, Hot & Cold in Solar Orbiter Mission to the Sun
Magnetics Business & Technology - May/June 2020 - 7
Magnetics Business & Technology - May/June 2020 - 8
Magnetics Business & Technology - May/June 2020 - 9
Magnetics Business & Technology - May/June 2020 - Carpenter Technology Moves Forward in Soft Magnetics and Additive Manufacturing, Exclusive Interview with CEO Tony Thene
Magnetics Business & Technology - May/June 2020 - 11
Magnetics Business & Technology - May/June 2020 - 12
Magnetics Business & Technology - May/June 2020 - 13
Magnetics Business & Technology - May/June 2020 - 14
Magnetics Business & Technology - May/June 2020 - 15
Magnetics Business & Technology - May/June 2020 - 16
Magnetics Business & Technology - May/June 2020 - 17
Magnetics Business & Technology - May/June 2020 - Research & Development
Magnetics Business & Technology - May/June 2020 - 19
Magnetics Business & Technology - May/June 2020 - 20
Magnetics Business & Technology - May/June 2020 - 21
Magnetics Business & Technology - May/June 2020 - 22
Magnetics Business & Technology - May/June 2020 - 23
Magnetics Business & Technology - May/June 2020 - Product News
Magnetics Business & Technology - May/June 2020 - 25
Magnetics Business & Technology - May/June 2020 - 26
Magnetics Business & Technology - May/June 2020 - 27
Magnetics Business & Technology - May/June 2020 - Industry News
Magnetics Business & Technology - May/June 2020 - 29
Magnetics Business & Technology - May/June 2020 - 30
Magnetics Business & Technology - May/June 2020 - 31
Magnetics Business & Technology - May/June 2020 - 32
Magnetics Business & Technology - May/June 2020 - 33
Magnetics Business & Technology - May/June 2020 - Annual Industry Resource Guide
Magnetics Business & Technology - May/June 2020 - 35
Magnetics Business & Technology - May/June 2020 - 36
Magnetics Business & Technology - May/June 2020 - 37
Magnetics Business & Technology - May/June 2020 - 38
Magnetics Business & Technology - May/June 2020 - 39
Magnetics Business & Technology - May/June 2020 - 40
Magnetics Business & Technology - May/June 2020 - 41
Magnetics Business & Technology - May/June 2020 - 42
Magnetics Business & Technology - May/June 2020 - 43
Magnetics Business & Technology - May/June 2020 - Events Calendar/ Advertising Index
Magnetics Business & Technology - May/June 2020 - 45
Magnetics Business & Technology - May/June 2020 - Visions
Magnetics Business & Technology - May/June 2020 - Cover3
Magnetics Business & Technology - May/June 2020 - Cover4
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2024mayjune
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2024marchapril
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2024januaryfebruary
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2023novemberdecember
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2023septemberoctober
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2023julyaugust
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2023mayjune
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2023marchapril
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2023januaryfebruary
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2022novemberdecember
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2022septemberoctober
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2022julyaugust
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2022mayjune
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2022marchapril
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2022januaryfebruary
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2021novemberdecember
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2021septemberoctober
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2021julyaugust
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2021mayjune
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2021marchapril
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2021januaryfebruary
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2020novemberdecember
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2020septemberoctober
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2020julyaugust
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2020mayjune
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2020marchapril
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2020januaryfebruary
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2019novemberdecember
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2019septemberoctober
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2019julyaug
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2019mayjune
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2019marchapril
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2019janfeb
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2018winter
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2018summer
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2018spring
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2017winter
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2017summer
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2017spring
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2016winter
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2016summer
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2016spring
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2015winter
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2015summer
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2015spring
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2014winter
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2014summer
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2014spring
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2013winter
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2013fall
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2013summer
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2013spring
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2012winter
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2012fall
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2012summer
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2012spring
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2011winter
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2011fall
https://www.nxtbook.com/nxtbooks/webcom/magnetics_2011summer
https://www.nxtbookmedia.com