3 ms·
To get a track the trajectory has to be in the CCD plane? Doesn’t that mean abysmal efficiency?
by pletnes 6y ago
To get a track the trajectory has to be in the CCD plane? Doesn’t that mean abysmal efficiency?
- corty 6y agoYou can also get a trajectory with a stack of CCDs where the trajectory is not in the plane of the CCD. Actually the stack may be very high with quite some distance between individual CCDs, because you need trajectory in and out of detector elements like calorimeters that are a few meters in size. Also, trajectory may be bent because of the particle's charge and a magnetic field, for that you need a large distance to get the "amount of bend" if it is small. But yes, there always is an efficiency, precision and identification tradeoff.