8 Accelerator Engineering and Technology: Accelerator Technology
449
Fig. 8.64 (Left) Combined OTR and scintillator screen mechanism showing chamber in the out
position and (bottom) an example of images obtained during the very first injection into the LHC
8.6.4.4 Residual Gas and Luminescence Monitors
Rest gas monitors are used in many high energy accelerators in order to reconstruct
transverse beam distributions [144]. The signal results from the collection of either
the ions or the electrons produced by the beam ionising the small amount of
residual gas in the vacuum chamber. These ions or electrons are accelerated using
a bias voltage of several kilovolts and typically collected on a micro channel plate
449
Fig. 8.64 (Left) Combined OTR and scintillator screen mechanism showing chamber in the out
position and (bottom) an example of images obtained during the very first injection into the LHC
8.6.4.4 Residual Gas and Luminescence Monitors
Rest gas monitors are used in many high energy accelerators in order to reconstruct
transverse beam distributions [144]. The signal results from the collection of either
the ions or the electrons produced by the beam ionising the small amount of
residual gas in the vacuum chamber. These ions or electrons are accelerated using
a bias voltage of several kilovolts and typically collected on a micro channel plate