Development of beam profile monitor for antiproton annihilation cross section measurements by the ASACUSA Collaboration

Collaboration
2011

Citations per year

2012201320142015201610
Abstract: (IOP)
The ASACUSA (the Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration has developed various kinds of monitors which both destructively and non-destructively measure the spatial profiles of pulsed antiproton beams at the Antipro ton Decelerator (AD) of CERN. These include detectors consisting of foil and wire electrodes based on gas ionization or secondary electron emission, which are compatible with ultra-high vacuum conditions. A new beam profile monitor with a grid of electrod e pads fabricated on a normal glass-epoxy circuitboard was adapted for the measurement of antiproton annihilation cross sections. This monitor has an active area of 40 mm Oe 40 mm and a spatial resolution of 4 mm. It can measure the spatial profile of 40- 50-ns-long beam pulses containing > 10(4) antiprotons striking each anode strip.