Optimizing the position resolution of a Z-stack microchannel plate resistive anode detector for low intensity signals.
A method for achieving good position resolution of low-intensity electron signals using a microchannel plate resistive anode detector is demonstrated. Electron events at a rate of 7 counts s(-1) are detected using a Z-stack microchannel plate. The dependence of position resolution on both the distance and the potential difference between the microchannel plate and resistive anode is investigated. Using standard commercial electronics, a measured position resolution of 170 μm (FWHM) is obtained, which corresponds to an intrinsic resolution of 157 μm (FWHM).
Department of Chemistry and Center for Exploration of Energy and Matter, Indiana University, 2401 N. Milo B. Sampson Ln., Bloomington, Indiana 47408, USA.
B B
BB
Wiggins
Department of Chemistry and Center for Exploration of Energy and Matter, Indiana University, 2401 N. Milo B. Sampson Ln., Bloomington, Indiana 47408, USA.
E
E
Richardson
Department of Chemistry and Center for Exploration of Energy and Matter, Indiana University, 2401 N. Milo B. Sampson Ln., Bloomington, Indiana 47408, USA.
D
D
Siwal
Department of Chemistry and Center for Exploration of Energy and Matter, Indiana University, 2401 N. Milo B. Sampson Ln., Bloomington, Indiana 47408, USA.
S
S
Hudan
Department of Chemistry and Center for Exploration of Energy and Matter, Indiana University, 2401 N. Milo B. Sampson Ln., Bloomington, Indiana 47408, USA.
R T
RT
deSouza