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Cockroft Walton.

Yes...

 

The old pre-accelerator at Fermilab, no longer in use. This thingamabob steps up a 75kV AC signal to 750kV DC to give the hydrogen ions their first kick into the accelerator. After hydron ions (protons) leave this gizmo, they are imparted with an energy of rest mass + 750keV (kilo-electron-volts). from here they were eventually boosted up to 0.98 TeV (tera-electron-volts) and smashed into antiprotons of equal energy.

 

This large 3 story room of sciency looking stuff has been replaced with a pair of doohickeys the size of a refrigerator.

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Uploaded on March 19, 2015
Taken on March 17, 2015