„HPGe detector technologies”

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Presentation transcript:

„HPGe detector technologies”

Laboratory of Nuclear Problems Experimental Research Department of Nuclear Spectroscopy and Radiochemistry Supervisors: Dr. V.G. Sandukovsky Jan Jurkowski Dariusz Borowicz Participants: Grzegorz Gach (AGH) Jarosław Mazur (UG)

Project aims: Acquaintance with detector fabrication Performance measurement

Kinds of detectors Coaxial Planar

Detector fabrication Crystal preparation: Cutting a crystal of a required shape. Making a p–n junction. Cutting out a protecting ring. Temperature evaporation Au at the p–n junction side.

Detector fabrication Crystal preparation: Etching and oxidizing for an ohmic contact. Temperature evaporation of Pd and Au upon a prepared surface. Final etching and protecting the surface from the environment.

Detector fabrication Mounting detector

Performance measurement Voltage-Capacity characteristic

Performance measurement Counts Integral

Performance measurement Voltage-Current characteristic

Applications: Research Environment protection Medicine

Special thanks: D. Fursaev W. Chmielowski R. Zawodny Dr. V.G. Sandukovsky Jan Jurkowski Dariusz Borowicz

Thank you for attention. Authors: Grzegorz Gach Jarosław Mazur