BBC World Service radio, frequency 12.095khz African Service.
I was listening to an Indian proffesor discusing the last twenty years of his work. I had missed the start of the program but could still grasp a part of what he was saying. What caught my attention was the fact they can record the work as its happening at 40,000,000 pictures per second!
As you can see, there is a central “barrel” portion, and two “forward disks”. The detectors themselves are rectangular, and, as the name implies, segmented into very small pixels about a tenth of a millimeter in size. That’s a lot larger than the pixel size in your digital camera. But this detector can take 40 million pictures a second, keeping the interesting ones and discarding the vast majority.
That's all very interesting stuff but it must be costing a fortune and is completely unproductive as far as income, it just consumes money. The original idea of such a collider was to learn how to produce atomic fusion, we now have atomic fishion that power out nuke stations but this is a dirty business producing active waste that lasts thousands of years. If they could crack the fusion problem it would lead to unlimited power without the active waste problem so I wonder what they are messing about with pixel detectors for unless its to find out how to get the particles to collide in such mass that they get fusion? It's all terribly technical and employs thousands of boffin's.