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The GSR D1 gamma irradiator is the optimal solution for gamma irradiation in radiobiological research. The combination of the large (64 l) irradiation capacity with a low surface dose rate delivers efficiency and safety in the laboratory.

Irradiation chamber

The 400x400x400mm dimensions of the GSR D1’s irradiation chamber combined with three easily adjustable irradiation levels enable optimum positioning of the object to be irradiated. Cable/air input access points are built into the irradiation chamber.

Dose Rate

The activity of the Cs-137 sources and thereby the dose rate can be optimised in accordance with the user’s requirements. A dose difference of <10% is achievable at irradiation level 2.


The GSR D1 is user-friendly and very easy to operate, thanks to the high quality of the reliable components and the unit’s comprehensive safety system. A display shows the current operational status at all times.

Radiation safety

The GSR D1 is a self-contained gamma irradiator with a maximum surface dose rate of <5μSv/h at a maximum activity of 200TBq Cs-137.

Safety Feature

  • Operated by means of a key switch and security code
  • In the event of a power cut, the irradiation cycle will continue for up to 300 min
  • Independent locking of irradiation chamber and loading hatch
  • Continuous monitoring and control of the unit before and during irradiation procedure

Technical Spezification

Irradiation Device  
Weight 4300 kg
Unit Dimensions Height 1520 mm
  Width 1210 mm
  Depth 690 mm
Recommended room size min. 2 x 2 m
Electrical supply 120 V / 230 V
Room temperature + 5°C until + 40°C
Battery Back-up Yes
Certificate CE
Irradiation Chamber
Measurements 400 x 400 x 400 mm
Volume 64 litre
Irradiation levels 4
Cable/air input access points 5
Source Activity Cs-137 up to 200 TBq
Surface dose rate < 5 μSv/hr
Dose uniformity < 10 % over a 300 mm square
Collimators on request  
Attenuators on request  
Rotating mice box  
Rodent holder  

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