Abstract
The effects of different passivation methods applied to the same planar high-purity germanium gamma radiation detector have been studied. By means of the scanning with a low-energy collimated gamma source, it has been found that the surface passivation gives rise to a dead layer below the intrinsic Ge surface, whose thickness and distribution are strongly dependent on the passivation type. Measured bulk detector properties like the peak-to-Compton ratio and efficiency have shown a dependence on the passivation and an influence of the passivation type on the depletion voltage, whilst the optimal energy resolution has been the same for all the passivations.
Similar content being viewed by others
References
J. Eberth, J. Simpson, Prog. Part. Nucl. Phys. 60, 283 (2008).
K. Vetter, Annu. Rev. Nucl. Part. Sci. 57, 363 (2007).
C. Fleischmann et al., J. Mater. Chem. C 1, 4105 (2013).
P.W. Loscutoff, S.F. Bent, Annu. Rev. Phys. Chem. 57, 467 (2006).
G.W. Anderson et al., Appl. Phys. Lett. 66, 1123 (1995).
S. Rivillon et al., Appl. Phys. Lett. 87, 253101 (2005).
T. Maeda et al., J. Appl. Phys. 100, 014101 (2006).
D. Bodlaki et al., Surf. Sci. 543, 63 (2003).
K. Park, Y. Lee, S. Lim, Appl. Surf. Sci. 254, 1842 (2008).
M. Houssa et al., Microelectronic Eng. 84, 2267 (2007).
C. On Chui, F. Ito, K.C. Saraswat, IEEE Trans. Electr. Dev. 53, 1501 (2006).
K. Prabhakaran, T. Ogino, Surf. Sci. 325, 263 (1995).
S. Carturan et al., Mater. Chem. Phys. 161, 116 (2015).
S. Sioncke et al., J. Electrochem. Soc. 158, H687 (2011).
C. Fleischmann et al., ECS Trans. 50, 569 (2012).
Yu.B. Gurov et al., Instrum. Exp. Tech. 52, 137 (2009).
K. Choi, J.M. Buriak, Langmuir 16, 7737 (2000).
T. Deegan, G. Hughes, Appl. Surf. Sci. 123/124, 66 (1998).
G.F. Knoll, Radiation Detection and Measurement, 2nd edition (J. Wiley & Sons, Inc., New York, 1989).
E.L. Hull et al., Nucl. Instrum. Methods Phys. Res. A 364, 488 (1995).
IEC Standard Test Procedures for Germanium Gamma-Ray Detectors, IEC 60973-2002 (2002) sect. 9.
A. Elanique et al., Appl. Radiat. Isot. 70, 538 (2012).
R.B. Firestone, Table of Isotopes, 8th edition (J. Wiley & Sons, Inc., New York, 1996).
J. Llacer, Nucl. Instrum. Methods 98, 259 (1972).
S.-S. Bae et al., J. Phys. Chem. C 111, 15013 (2007).
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by Tohru Motobayashi
Rights and permissions
About this article
Cite this article
Maggioni, G., Napoli, D.R., Eberth, J. et al. Characterization of different surface passivation routes applied to a planar HPGe detector. Eur. Phys. J. A 51, 141 (2015). https://doi.org/10.1140/epja/i2015-15141-9
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1140/epja/i2015-15141-9