PA3 (PATRI) Solution of tritium sampling passive and smart.
PA3 a novel device to trap passively atmospheric tritium (HTO) representative of the monitored environment.
Developed and developed by the laboratory LS3E of IRSN, PA3 technology is patented.
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During the picking process realized using PA3 the user is pro-active : it can monitor anytime in real-time the tritium sampling quality indicators.
Intelligence at user service
Equipped with contactless technology, PA3 is a carrier of information by transporting the data collected on the field. The PA3 trap, arriving at the laboratory, is identified and transmits data useful for calculating the volume activity of atmospheric tritium.
Advantages
- Compact geometry and reusable
- Continuous sampling from 1 day to 1 month
- Electrical autonomy
- Easily deployable
- Robust technology
- Not sensitive to weather conditions
The PA3 passive trap consists ofa tapered cartridge welcoming a molecular sieve (adsorbent material) which collected preferentially atmospheric tritium in proportion constant regardless of the relative humidity. Geometry has been designed to facilitate the transport of molecules from the air to the device of trapping through the property of molecular diffusivity of gas.
A negative pressure gradient is maintained between a normalized opening (establishing the sampling period) and the media of trapping realizing the role of SLPP and adsorbent tritiated water linearly and without saturation effect.
The principle of the PA3 technology allows samples of the weather of low activity without effect of dilution, as well as releases to strong activities.
Pre-filled cartridge (molecular tamis) and regeneratable after use.
| Technical specifications | |
|---|---|
| Molecular sieve | Zeolite type 13X |
| Selectable lid | 1, 7, 15 and 30 days of sampling |
| Mechanical properties | |
|---|---|
| Material | Stainless steel 304 L |
| Dimensions | L=100 mm, ∅=90 mm |
| Weight | approx. 635 g (820 g loaded) |
- Brochure
- Product sheet PA3, 383 ko