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CERN LHC ‑271.3°C magnets tunafish sandwich

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#81 MrSkeptic

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Posted 05 April 2017 - 04:46 AM

A team of researchers has successfully taken a magnet from a decommissioned MRI scanner used by a Brisbane, Australia, hospital for scanning patients, and recycled it for use in an experiment at CERN’s ISOLDE facility.

The ISOLDE Solenoidal Spectrometer (ISS) project will design and construct instruments to explore the nuclear reactions that occur when stars explode in supernovae.

The decision was made to re-commission the 15-year-old magnet when it was discovered that building a new one could cost almost 1,250,000 CHF. Instead, the entire process of shipping and re-commissioning the retired MRI magnet was around 160 000 CHF (€149,500).

“Finding a suitable MRI magnet that can go up to a strength of 4 Tesla is not easy, but we found out about this Australian magnet from our collaborators at Argonne National Laboratory and it was exactly what we needed,” explains Professor Robert Page, of the University of Liverpool, who leads the international collaboration using the magnet.

ISOLDE is CERN’s radioactive ion beam facility, where they study the different properties of hundreds of atomic isotopes.

Once the superconducting magnet arrived at CERN, the cryogenics team got to work cooling it with liquid helium, to see if it was still capable of producing the strong fields required by the ISS project.

The project, will take beams of radioactive ions, produced by bombarding heavy nuclei with protons from the Proton Synchrotron Booster (PSB) at CERN, and fire them at a heavy hydrogen (deuterium) target inside the magnet itself. As the particles are fired at the target, neutrons are transferred to some particles to create ions with unusual numbers of protons and neutrons – these are the exotic ions studied at ISOLDE.

But this process leaves protons without their neutron partner. The strong magnetic field from the MRI magnet causes these protons to spiral backwards and land, just nanoseconds later, on a silicon detector.

From the position of the proton on the detector and its energy, the energy levels of the exotic ions can be determined. In this way the team hopes to understand how the forces in atomic nuclei with differing numbers of protons and neutrons give rise to their very different properties, and how elements are created by supernovae.

The ISS project includes researchers from the University of Liverpool, STFC Daresbury Laboratory, the University of Manchester and the Katholieke Universiteit Leuven.

 

 

Now there's a great example of re-using something. Well done, you brainiacs. 


They said I could be anything, so I became a disappointment.

 

 


#82 ghostworks

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Posted 19 July 2018 - 03:38 AM

CERN’s nuclear physics facility, ISOLDE, has minted a new coin in its impressive collection of isotopes. The facility has forged neutron-rich isotopes of the element chromium for the first time, and in prodigious quantities. These isotopes were measured by the ISOLTRAP precision balance, which has been performing mass measurements at ISOLDE for the last 30 years.



#83 ghostworks

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Posted 19 July 2018 - 03:38 AM

What if, instead of a black and white X-ray picture, a doctor of a cancer patient had access to color images identifying the tissues being scanned?

https://home.cern/ab...cern-technology



#84 grep

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Posted 02 August 2018 - 12:57 AM

https://home.cern/ab...cern-technology

 

Oh, pictures of living meat. You could go to the butcher and pick out your fresh meat, based on the latest color x-rays.

"I'd like a cut from Cow # 3a please. Thanks."

Yum.


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#85 ghostworks

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Posted 07 August 2018 - 04:30 PM

The Deep Underground Neutrino Experiment is advancing technology commonly used in dark matter experiments—and scaling it up to record-breaking sizes.

 

"...the cathode of the field cage—the electrical component which draws the electrons towards the signal-recording pieces—must be operated at a mind-boggling voltage of around 600,000 volts. In addition, the CRPs must lie perfectly level at the border of the liquid and gas phases of argon and function stably, without sparking..."

 

 

 

 

https://www.symmetry...m_content=click







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