Article ID Journal Published Year Pages File Type
5467445 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2017 6 Pages PDF
Abstract
A high-speed wavelength-dispersive ion beam induced luminescence (IBIL) detector was demonstrated using a newly developed photon-counting mode spectrometer based on a 32-channel photomultiplier tube (PMT) array combined with a high-efficiency optical grating. An integrated electrical circuit based on a field-programmable gate array was prepared to process 32 individual IBIL signals from different PMT channels. These signal were further processed conventionally by a micro-PIXE analysis system. Individual pulses corresponding to each IBIL photon incident from the PMT array were multiplexed into a single analog chain with different amplitudes corresponding to the channel number of the array. The signal had a pulse width of 2 μs in the amplitude range 0-10 V. The results suggest that the demonstrated IBIL detector can be used to detect differences in IBIL images at multiple wavelengths.
Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
Authors
, , , , , , , , ,