Ja. Paradiso, NEW TECHNOLOGIES FOR MONITORING THE PRECISION ALIGNMENT OF LARGE DETECTOR SYSTEMS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 386(2-3), 1997, pp. 409-420
Two classes of inexpensive systems are described for performing dynami
c, high-resolution measurements of the mechanical alignment between co
mponents of a large collider detector. One is a three-point optical sy
stem based on video cameras and simple frame processing, while the oth
er is a multipoint stretched wire with three-dimensional displacement
readout. Test results are presented for both types of devices, and an
application is outlined for a large muon system.