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Successful Test of New U.S. Magnet Puts Large Hadron Collider on Track for Major Upgrade

By Guest PostAugust 3, 2013Scienceaccelerator technology, advance, berkeley lab, CERN, fermilab, gianluca sabb, higgs boson, high field quadrupole, high luminosity, hq02a, Large Hadron Collider, larp, lucio rossi, magnetic excitation, magnets, nb3sn, new us magnet, old dominion university, quench, superconducting quadrupole magnet, superconducting state, superconductor niobium tin

U.S. Department of Energy national laboratories – including Berkeley Lab – collaborate to build the new magnets CERN needs to increase LHC luminosity by an order of magnitude

The U.S. LHC Accelerator Program (LARP) has successfully tested a powerful superconducting quadrupole magnet that will play a key role in developing a new beam focusing system for CERN’s Large Hadron Collider (LHC). This advanced system, together with other major upgrades to be implemented over the next decade, will allow the LHC to produce 10 times more high-energy collisions than it was originally designed for.

Dubbed HQ02a, the latest in LARP’s series of High-Field Quadrupole magnets is wound with cables of the brittle but high-performance superconductor niobium tin (Nb₃Sn). Compared to the final-focus quadrupoles presently in place at the LHC, which are made with niobium titanium, HQ02a has a larger aperture and superconducting coils designed to operate at a higher magnetic field. In a recent test at the Fermi National Accelerator Laboratory (Fermilab), HQ02a achieved all its challenging objectives. (more…)

Scientists Observe Smallest Atomic Displacements Ever

By Guest PostSeptember 6, 2011Scienceatoms in magnetic materials, des mcmorrow, electrical polarisation, electronic devices, electronic memory, esrf, european synchrotron radiation facility, exotic materials, ferroelectrics, france, grenoble, helen walker, imaging atomic displacements, Japan, kimura, london centre for nanotechnology, magnetic detector, magnetic field, magnets, multiferroics, novel x ray technique, university of oxford

UCL scientists are part of an international team which has developed a novel X-ray technique for imaging atomic displacements in materials with unprecedented accuracy.

The team has applied the technique to determine how a recently discovered class of exotic materials – multiferroics – can be simultaneously both magnetically and electrically ordered. Multiferroics are candidate materials for new classes of electronic devices. (more…)

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Successful Test of New U.S. Magnet Puts Large Hadron Collider on Track for Major Upgrade

Scientists Observe Smallest Atomic Displacements Ever