Design of Cherenkov bars for the optical part of the time-of-flight detector in Geant4.
We present the results of studies devoted to the development and optimization of the optical part of a high precision time-of-flight (TOF) detector for the Large Hadron Collider (LHC). This work was motivated by a proposal to use such a detector in conjunction with a silicon detector to tag and measure protons from interactions of the type p + p → p + X + p, where the two outgoing protons are scattered in the very forward directions. The fast timing detector uses fused silica (quartz) bars that emit Cherenkov radiation as a relativistic particle passes through and the emitted Cherenkov photons are detected by, for instance, a micro-channel plate multi-anode Photomultiplier Tube (MCP-PMT). Several possible designs are implemented in Geant4 and studied for timing optimization as a function of the arrival time, and the number of Cherenkov photons reaching the photo-sensor.
L
L
Nozka
A
A
Brandt
M
M
Rijssenbeek
T
T
Sykora
T
T
Hoffman
J
J
Griffiths
J
J
Steffens
P
P
Hamal
L
L
Chytka
M
M
Hrabovsky
D003198:Computer Simulation; D004583:Electrons; D004867:Equipment Design; D055096:Optical Devices; D017785:Photons; D011789:Quantum Theory; D011827:Radiation; D012822:Silicon Dioxide / Q000737:chemistry; D013997:Time Factors
D012822:Silicon Dioxide