Speaker
Mr
Gerard Turk
(University of Liverpool)
Description
An orthogonal strip
HPGe detector has been manufactured by Ortec. The dimensions of the
crystal are 60 × 60 × 20 mm. The crystal is electrically divided
into 12 strips of a 5 mm width on both sides of the detector.
Combined with digital electronics and pulse shape analysis (PSA),
the detector has the potential to reduce the position resolution to
1 mm3. The improvement of position resolution in depth is the major
challenge in the characterization of the planar germanium
detector.
Digital electronics provides the opportunity to utilize PSA on an
event by event basis. The analysis involves two types of signal;
real charge and image charge. Information about the depth of
interaction can be gained from both signals. The analysis of the
real charge correlates the risetime and the depth of interaction.
The shape and amplitude of the image charges provides information
about the depth and the transverse position in the strip. A depth
measure using image charges has been developed and results will be
presented.
Primary author
Mr
Gerard Turk
(University of Liverpool)
