Switching Chamber Tritium-In-Air Monitor
Model 7009
Tyne’s Switching Chamber Tritium-in-Air Monitor is used to determine the total tritium in-air based on a continuous air sample drawn through a flexible tube that can be located up to 100 feet away. The tritium is measured using very accurate ion chambers.
- Model 7009 uses two ion chambers alternatively used with auto switching for continuous re-zeroing.
- Measures total tritium (T2 + HTO) in air.
- Visual and audible alarms.
- Long life air pump.
- Easy access dust filter.
- Compensates for Gamma, environmental effects, and plate out.
Tyne’s Switching Chamber Tritium-in-Air Monitor comprises of two parts: the tritium collection enclosure and the tritium measurement enclosure, also called the controller. The collection enclosure is responsible for handling of the gas streams and the measurement enclosure handles all of the electronic measurement, display and alarm functions.
The collection enclosure contains two 1000cc ion chambers that are the basis for the measurement of the room air and the auto-zeroing function. The air pump draws the room air through one ion chamber and clean air through the second ion chamber to gain a measurement of the room air activity in the first chamber and the background reading of the second chamber. The system then switches the flows so that the first chamber will measure background and the second chamber will measure the activity. With the automatic switching system, any effects from drift, temperature, humidity, and gamma radiation will be automatically compensated. This auto-zeroing procedure produces a very robust measurement that is insensitive to drift from environmental effects.
The air pump is a robust long-life pump that can draw sample air from up to 100 feet away. The flow is regulated by a manual rotameter and is directed through an easy access paper dust filter to maintain the cleanliness of the system.
The measurement enclosure handles all of the electronic signals and the automatic switching. It is operated by a large, touch screen panel on the front, with an easy to read display and a full set of menu options.
The controller handles all of the ion chamber switching and the auto-zeroing functions between the chambers and displays a single compensated value in either μCi/m3 or Bq/m3, selected by the client when the instrument is ordered. The measurement range is between 1 μCi/m3 and 1,000,000 μCi/m3 with two settable alarms within that range. The two alarms have both a local audible and visual effect as well as a 30VAC/DC, 1A relay for remote alarm functions or process control.
The measured signal is also output in analog form as either 0-10V or 4-20mA. The controller may also be connected to a computer through the digital RS232 for remote display.
Please contact us for details.
related Tritium In-Air-Monitors
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High accuracy room monitoring for both tritium and gamma with the convenience of simple wall mounting for ease of removal for calibration or relocation.
A versatile wall or rack-mount monitor. The 7045 is intended for room monitoring for both tritium and gamma. Incorporating 4 ion chambers and a sniffer probe.
Accurately determines total tritium in air based on a continuous air sample drawn through a flexible tube that can be located up to 100 feet away. Features two ion chambers alternatively used with auto switching for continuous re-zeroing.
Simultaneously monitors up to 32 remote locations or rooms for background (environmental, gamma and other isotopes) compensated tritium activity.
Ideal for measuring tritium in remote locations. Includes battery backup, two sample tubes mounted on stands, real time measurement, backup bubbler totalizing, auto zeroing and dual local/remote alarms.
Incorporates two tritium monitor controllers mounted on a movable hand cart which can be pushed to an environment where an operator is performing tasks where concerns of possible tritium leaks into the atmosphere exist.
Enables operators leaving areas of potential tritium contamination to acquire an immediate measure of bodily uptake of tritium.
Determines the amount of tritium in the laboratory atmosphere via concentration of tritium absorbed into the Passive Diffusion Cell.
Tyne's tritium bubbler system collects workspace or environmental samples from ambient air. With the recognized fast conversion dynamic of free tritium to THO, the requirement for a catalytic furnace to convert free Tritium into THO prior to sampling is avoided and a direct three stage bubbler system implemented.
In order to provide customers with the desired flexibility, Tyne Engineering has developed an external pump box that can be utilized with all of our tritium monitoring instruments, providing reliable, continuous, long term operation beyond the design life of the instrument internal pumps.desired.
This system was designed by Tyne for the capture of tritium and carbon-14 from biological and environmental samples by pyrolysis followed by high temperature catalysis to THO and CO2. The evolved gases are captured in bubblers for THO capture followed by bubblers for CO2 capture. The resulting bubbler samples are analyzed using a laboratory liquid scintillation counter.
