How fast are the protons traveling?
How relativistic are they?

ACCELERATOR

Kinetic Energy at "business end"

b=v/c

1-b

g=1/(1-b²)^1/2

Hydrogen Atoms 
in the "Bottle"

~ 0.04 eV
(room Temperature)

9.1 x 10^-8
(6100 miles/hour)

H^- ion source

25 KeV

0.0073 
(1,358 miles/second)

1.0000266

Cockcroft-Walton

750 KeV

0.04

1.0008

Linac
section of original - 1971

116 MeV

0.456

1.1236

Linac
new 805 MHz, 1993

400 MeV

0.713

1.426

Booster, Debuncher, Accumulator, Recycler

8 GeV

0.9945

9.53

Main Injector

150 GeV

1.93 x 10^-5

160.9

Tevatron

1000 GeV = 1 TeV

4.39 x 10^-7

1067

Note:  the highest energy electron beams are those at CERN.  These beams have 100 GeV of energy, 1/10th the energy of the proton and anti-proton beams in the Tevatron.  However, since electrons are so much lighter than protons (their mass is ~1/2000th the proton mass) they travel faster.  At 100 GeV the electrons at CERN  have 1-b = 1.30 x 10^-11 and g = 195,695