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Technical data of the pin holes based Passive Radon Thoron Monitor. (PRTM)
- Single entry face for both radon and thoron diffusion.
- Discrimination of radon / thoron should be carried out by pinholes.
- Inside metal coating to avoid radon / thoron absorption and enhance sensitivity.
- Material : ABS.
- Thickness of the construction material : 4 mm.
- Colour : Wooden.
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- Chamber dimension : 6.1 cm x 4.1 cm.
- Central disc thickness : 2 mm.
- Number of pin hole : 4.
- Dimension of pin holes : 1 mm. (Dia) x 2 mm (length)
- Number of SSNTD film (3 cm x 3 cm) holder : 2.
- Sealing at each threading : Neoprene ‘O’ ring.
- Deployment arrangement : Chain lock system at top with gas entry face downward.
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