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Images Dated 2nd March 2000

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Choose from 5 pictures in our Images Dated 2nd March 2000 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

HERA accelerator ring, DESY
Science Photo Library

Volcanic Black Sand Close-up
Animals Animals

Carrion Crow - in Spring flowers
Ardea Wildlife Pets Environment

Islamic Arches in White Marble - Diwanriam Agra Fort India
Animals Animals

Featured 2 Mar 2000 Print

HERA accelerator ring, DESY

HERA accelerator ring. View of part of the HERA accelerator at DESY (Deutsche Elektronen Synchro- tron), Hamburg, Germany. HERA (Hadron Electron Ring Accelerator) consists of a pair of accelerator rings mounted in a 6.3km circumference tunnel. The upper (cream-coloured) ring carries protons, whilst the lower (pink) ring carries electrons in the other direction. At two points on the ring the beams cross providing proton/electron collisions at an energy of 850 GeV. Two large detectors (H1 and ZEUS) will then study these collisions. Data from these detectors will provide information about the quarks inside protons and the gluon force moderators that bind them