Intersecting Storage Rings
Some of the buildings associated with the ISR at CERN. The accelerator itself is beneath the curved, tree-covered hill that runs around the outside of the road.
|Intersecting Storage Rings||CERN, 1971–1984|
|Super Proton Synchrotron||CERN, 1981–1984|
|ISABELLE||BNL, cancelled in 1983|
|Relativistic Heavy Ion Collider||BNL, 2000–present|
|Superconducting Super Collider||Cancelled in 1993|
|Large Hadron Collider||CERN, 2009–present|
|Future Circular Collider||Proposed|
The ISR (standing for "Intersecting Storage Rings") was a particle accelerator at CERN. It was the world's first hadron collider, and ran from 1971 to 1984, with a maximum center of mass energy of 62 GeV. From its initial startup, the collider itself had the capability to produce particles like the J/ψ and the upsilon, as well as observable jet structure; however, the particle detector experiments were not configured to observe events with large momentum transverse to the beamline, leaving these discoveries to be made at other experiments in the mid-1970s. Nevertheless, the construction of the ISR involved many advances in accelerator physics, including the first use of stochastic cooling, and it held the record for luminosity at a hadron collider until surpassed by the Tevatron in 2004.
- ISR startup
- Early history of the ISR
- Picture of the ISR from above - It's the large earthen ring with circular roads inside and outside.
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