Most powerful solenoid magnet
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B. Most Powerful Solenoid Magnet. 18kA, 3.8T solenoid 3m radius, 15m length 2.5 GJ stored energy Can be discharged in a controlled fast dump in several minutes Tested successfully in 2006 and 2008 Effect of significant in-situ fringe fields necessitated additional securing of objects.

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Most Powerful Solenoid Magnet

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Most powerful solenoid magnet

B

Most Powerful Solenoid Magnet

  • 18kA, 3.8T solenoid

  • 3m radius, 15m length

  • 2.5 GJ stored energy

  • Can be discharged in a controlled fast dump in several minutes

  • Tested successfully in 2006 and 2008

  • Effect of significant in-situ fringe fields necessitated additional securing of objects

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Cms completed august 25 2008 16 years after its letter of intent

CMS Completed!August 25, 2008 – 16 years after its Letter of Intent

Ready for the LHC

Some issues here

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Huge toroidal magnet system

B

Huge Toroidal Magnet System

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Sept 10 2008

Sept.10, 2008

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Large hadron collider near geneva switzerland

Large Hadron Collider, near Geneva, Switzerland

Geneva

CMS

CERN

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A proton collider atom smasher

A Proton Collider (“Atom smasher”)

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The large hadron collider lhc

The Large Hadron Collider (LHC)

  • 7 TeV on 7 TeV proton-proton collider, 27km ring

    • 7 times higher energy than the Tevatron at Fermilab

      • Aim for 5 TeV for 2008

    • 100 times higher design luminosity than Tevatron (L=1034cm-2s-1)

  • 1232 superconducting 8.4T dipole magnets @ T=1.9ºK

    • Largest cryogenic structure, 40 ktons of mass to cool

  • 4 experiments

    • ATLAS, CMS

    • ALICE, LHCb

  • Start Date:Sept. 10,2008

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Uniform circular motion

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r

v

Uniform Circular motion

Actually about 4.5km with straight sections included

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Lhc tunnel and dipole magnets

LHC Tunnel and Dipole Magnets

  • 15 m long magnets with unique single structure for 2 beams

  • Cooled with superfluid helium

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The real tunnel

The Real Tunnel

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Most powerful solenoid magnet

The Excitement of First LHC beams!

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Beam splash event

Beam Splash Event

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Uf celebration in the cms control room 11pm

UF Celebration in the CMS Control Room, 11pm

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Unfortunately

Unfortunately…

  • An major malfunction on Sept.19, 2008 means that we’ll be restarting once again in Sept. 2009

Electrical arc vaporized beam pipe, released tons of helium, leading to chain reaction of forces…

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Some misconceptions about the lhc

Some Misconceptions about the LHC

Geneva tabloid


Most powerful solenoid magnet

Doomsday scenarios…

  • The LHC will create mini-black holes that will destroy the Earth

    • If more dimensions exist to allow their production, Hawking radiation will cause them to decay immediately

    • Collisions at energies above the LHC have occurred in our atmosphere over eons, so any BHs that are stable have been benign

    • See also: J. Ellis et al., “Review of the safety of LHC collisions”,J. Phys. G: Nucl. Part. Phys. 35 (2008) 115004

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This is a work of fiction

This is a work of fiction

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Http cern ch

http://cern.ch

  • But the CERN laboratory has been very supportive of the upcoming movie (and offering clarifications…)

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