High accuracy position response calibration method for a micro-channel plate ion detector

Abstract

We have developed a position response calibration method for a micro-channel plate (MCP) detector with a delay-line anode position readout scheme. Using an {\em in situ} calibration mask, an accuracy of 8~$\mu$m and a resolution of 85~$\mu$m (FWHM) have been achieved for MeV-scale $\alpha$ particles and ions with energies of $\sim$10~keV. At this level of accuracy, the difference between the MCP position responses to high-energy $\alpha$ particles and low-energy ions is significant. The improved performance of the MCP detector can find applications in many fields of AMO and nuclear physics. In our case, it helps reducing systematic uncertainties in a high-precision nuclear $\beta$-decay experiment.

References in corpus (2)

• Measurement of the Beta-Neutrino Correlation of Sodium-21 using Shakeoff Electrons
• Using pulse shape analysis to improve the position resolution of a resistive anode microchannel plate detector

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• Two-dimensional beam profile monitor for the detection of alpha-emitting radioactive isotope beam