Position-sensitve semiconductor detectors

Electron emission channeling with position-sensitive detectors

“…[8]) have proven very useful as PSDs for alpha emission channeling [9]. Typically, such devices are 1×1 cm 2 to 3×3 cm 2 in size and 300-1000 µm thick, and energy resolutions down to 16 keV and position resolutions of 70 µm for 5.8 MeV alpha particles have been reported [10].…”

“…Typically, such devices are 1×1 cm 2 to 3×3 cm 2 in size and 300-1000 µm thick, and energy resolutions down to 16 keV and position resolutions of 70 µm for 5.8 MeV alpha particles have been reported [10]. Their relative position resolution σ d /s, however, is approximately equal to their relative energy resolution ∆E/E [8], while the absolute energy resolution ∆E is dominated by the noise introduced by the resistance of the charge dividing layer itself and almost independent of particle energy. For energies below 300 keV, resistive charge PSDs, therefore, can hardly reach position resolutions better than 5%, even if operated at their very best noise limit.…”

1980, a revolution in silicon detectors, from energy spectrometer to radiation imager: Some technical and historical details

“…More important, the production of linear microstrip detectors and 2D matrix pixel detectors has led to many new applications where the measurement of the position of the incoming radiation is essential. Before the planar approach with multiple segments the preferred method for position measurement was resistive charge division, as reviewed by Laegsgaard [47]. In a typical device with a few cm length, one could achieve a precision of the order 1% , corresponding to a few tenths of mm, depending on the signal/noise ratio.…”

Silicon Radiation Detectors - Materials and Applications

“…Two basic types of semiconductor positionsensitive detectors are in use--continuous element and discrete element [16]. Continuous-element detectors use a resistive layer to generate the position signal.…”