出典:Wikipedia
出典:『Wikipedia』 (2010/04/18 21:48 UTC 版)
A straw tracker is a type of particle detector which uses many straw chambers to track the path of a particle. The path is determined by the best fit to all the straws with hits. Since the time for a particular straw to produce a signal is proportional to the distance of the particle's closest approach to that chamber's wire, if a particle on a predictable path (e.g. a helix in a magnetic field) passes through many straws, the path of the particle can be determined more precisely than the size of any particular straw.