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|Title:||Determination of dead-layer variation in HPGe detectors|
|Authors:||ANDREOTTI ERICA; HULT Mikael; MARISSENS Gerd; LUTTER GUILLAUME; GARFAGNINI A.; HEMMER S.; VON STURM K.|
|Citation:||APPLIED RADIATION AND ISOTOPES vol. 87 p. 331-335|
|Publisher:||PERGAMON-ELSEVIER SCIENCE LTD|
|Type:||Articles in periodicals and books|
|Abstract:||The dead layer uniformity of the top surface of two high purity germanium detectors has been studied using a novel automated scanning set-up that allows a fine-grained topography of a detector's top and lateral surfaces. Comparisons between measurements and Monte Carlo simulations allowed implementation of a a dead-layer variation in the detector model, which reproduces the measurements results. The effect of the non-uniform dead-layer on activity determinations based on low-energy γ-rays (i.e. below 100keV) has been determined to be of the order of 10% or more.|
|JRC Directorate:||Health, Consumers and Reference Materials|
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