wirelessguru1 Wrote:
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> > antiprotons are made by crasing high energy
> protons at a target with an energy of at
> > least 6.5 GeV.
>
> What target!!??


A beam of 120 GeV protons from the Main Injector is smashed on to a Nickel Target every 1.5 sec. In the collisions many particles are created. (remember E=mc2). For every 1 million protons that hit the target, only about twenty 8 GeV pbars survive to make it into the Accumulator.

The pbars come off the target at many different angles. They are focused into a beam line
with a Lithium lens. The beam after the Lithium lens contains many different particles besides antiprotons. Many of these particles are filtered away by sending the beam through a pulsed magnet which acts as a charge-mass spectrometer.

Must I do all the goglingfor you?
Bernard