Author/Authors :
Descovich، نويسنده , , M. and Nolan، نويسنده , , P.J. and Boston، نويسنده , , A.J. and Dobson، نويسنده , , J. and Gros، نويسنده , , S. and Cresswell، نويسنده , , J.R. and Simpson، نويسنده , , J. and Lazarus، نويسنده , , I. and Regan، نويسنده , , P.H. and Valiente-Dobon، نويسنده , , J.J. and Sellin، نويسنده , , P. and Pearson، نويسنده , , C.J.، نويسنده ,
Abstract :
The position response of a large-volume segmented coaxial germanium detector is reported. The detector has 24-fold segmentation on its outer contact. The output from each contact was sampled with fast digital signal processing electronics in order to determine the position of the γ -ray interaction from the signal pulse shape. The interaction position was reconstructed in a polar coordinate system by combining the radial information, contained in the rise-time of the pulse leading edge, with the azimuthal information, obtained from the magnitude of the transient charge signals induced on the neighbouring segments. With this method, a position resolution of 3–7 mm is achieved in both the radial and the azimuthal directions.
