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+34 916 466 267

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DIYS – Bed type whole body counter for internal dosimetry

Information of the project

Compact and easy to operate, the Helgeson “Do-it- Yourself Whole Body Counter” offers a low cost means of ensuring safety for personnel at nuclear facilities, laboratories, or hospitals. The “Do-It-Yourself Whole Body Counter” measures the total body burden of gamma emitters and also approximates where the emitters are deposited within the body. The Helgeson “Do-It-Yourself Whole Body Counter” employs a scanning geometry, long recognized as the geometry which produces the lowest errors due to non-uniform source distribution. Its positional response is far superior to any chair or organ counter. Helgeson supplies analytical software, proven superior over many years, which provides qualitative and quantitative analysis of radioactive depositions. Our graphical representation of the data allows a technician to determine the quality of the evaluation.


  • Option 1: NaI(Tl), 20×10 cm (DxH)
  • Option 2: HPGe + NaI(Tl) 3×3”
  • Option 3: 4 x NaI(Tl) 10×10.



Technical description

Power requirements:
105-125 volts AC: 60 Hz, 10 Amp. / 200-250 volts AC: 50 Hz, 5 Amp.
Temperature max:
5 – 50ºC.
30%-80% noncondensing
10 cm of lead shielding around the detector(s) (adjustable). / 5 cm of lead shielding in bed sides and bottom (adjustable).


3 options

Option 1
NaI(Tl), 20x10 cm (DxH)
Option 2
HPGe + NaI(Tl) 3x3”
Option 3
4 x NaI(Tl) 10x10.
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