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

Nuclear Instruments and Methods in Physics Research Section A Accelerators, Spectrometers, Detectors and Associated Equipment(2016)

Cited 19|Views24
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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 in situ calibration mask, an accuracy of 8µm and a resolution of 85µm (FWHM) have been achieved for MeV-scale α particles and ions with energies of ∼10keV. At this level of accuracy, the difference between the MCP position responses to high-energy α 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 β-decay experiment.
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Key words
Micro-channel plate,Position calibration,Ion detector
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