What is Fermilab? - Run II Newscasts - Analyze the Data - Particle Physics Bibliography
One of the two detectors for colliding particles at Fermilab is located at the point on the accelerator ring called D0, so is called DZero.The original DZero has been upgraded to give better identification of particles. The upgrade added a better inner tracker and magnet. Usually, you cannot see any of the detector except the muon detector and the surrounding concrete blocks, but these photos show it when it was partially dismantled.
 Detector during upgrade. Notice the beam pipe in the center of the photo. When the upgrade was finished and the detector was moved back into place, the beam pipe was connected to the rest of the accelerator beam pipe. |
 Three main layers of the detector. Notice the size of the people. |
 One section of the fibers in the "central fiber tracker." The closely placed fibers record the time and place as particles pass through; they "track" the particles. |
 End part of the calorimeter. Like a calorimeter in chemistry, this one also measures energy of the particles. |
 The solenoid (magnet) before it is inserted between the tracker and calorimeter. |
Anatomy of a Detector - Identifying Particles - D0 Detector - CDF Detector - Links