| 1981 |
First plans to develop reactor protection systems based on Geiger-Mueller-, scintillation and ion-doped semiconductor detectors including the companies Siemens-KWU/Erlangen,
EG&G Instruments/Munich (management/marketing/distribution) and Autronic/Karlsruhe (development, production).
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| 1982-1984 |
Development of NaI175 and GM175 and qualification within the scope of qualifying examinations according to guidelines of the Nuclear Safety Standards Commission (KTA).
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| 1983 |
Development of measurement systems GM110-B and GM110-G for applications outside reactor safety.
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| 1984 |
First distribution of NaI175 and GM175 measurement systems for reactor safety to two german nuclear power plants.
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| 1984-1985 |
Development of the high-activity beta measurement system PIA55 and qualification within the scope of qualifying examinations according to guidelines of the Nuclear Safety Standards Commission (KTA).
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| 1985-1986 |
Distribution of GM175 and NaI175 for reactor safety in every nuclear powerplant in germany and spain built by Siemens/KWU after 1985.
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| 1995-1996 |
Redesign and qualification of the follow-up systems GM175A and NaI175A.
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| 1996-1997 |
Distribution of GM175A and NaI175A systems for radiation protection to multiple nuclear power plants in south america.
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| 1996-1997 |
Redesign and qualification of the PIA55A system as successor for PIA55.
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| 1999 |
Founding of Sentec GmbH by Dr. Steger and takeover of all development, production, marketing and distribution tasks.
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| 2005 |
Additional type testing for the NaI175A system for requalification after changing of components.
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| since 1985 |
Maintenance of installed protection systems via on-site measurements.
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| since 1999 |
Distribution of all available systems to nuclear power plants and research facilities worldwide.
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