As far as the tile roofs, they last a long time. It isn't the tile that is the issue, it's the felt (or paper) underneath that gets replaced. Mine is 25 years old, has not been replaced yet. Some neighbors have had theirs redone, but many have not as yet. 04-06-2011, 12:00 AM.
Smaller particle accelerators are used in a wide variety of applications, including particle therapy for oncological purposes, radioisotope production for medical diagnostics, ion implanters for manufacture of semiconductors, and accelerator mass spectrometers for measurements of rare isotopes such as radiocarbon.
Cyclotron vs Synchrotron | Synchrotron Accelerator vs Cyclotron Accelerator Cyclotron and synchrotron are two types of particle accelerators. Particle accelerators are very useful machines when it comes to the field of nuclear physics. The high-energy collisions of sub atomic particles give very good observations on the nature of the nucleus.