Surface activity monitor

feature

Measure the removable tritium on the smear paper.

Measure the total tritium on a flat conductive surface.

No need for P10 gas.

• Easy to use.

• No waste.

• Portable.

Optional calibration sources are available.

explanation

Smearing or wiping is commonly used to measure tritium surface contamination on equipment surfaces such as pipelines, drums, glove boxes, laboratory workbenches, or any other surfaces that may be contaminated with tritiumA reliable method. The measurement of smear usually involves dissolving the smear paper in a cocktail, placing it in a small bottle, and then measuring the degree of disintegration in a scintillation counter. Subsequently, there are also issues related to the storage of active liquids and the cleaning of equipment. The scintillation counter is considered a precise instrument, but due to the low precision of making smear samples, the efficiency of creating smears controls the accuracy of the entire process. Taen invented an instrument that is generally as accurate as a scintillation counterIt can read smears. Using a SAM monitor, it takes approximately 2 minutes to measure smear activity. In contrast, the time for scintillation measurement may be several hours or days, depending on the available laboratory facilities.

Read and control

The battery powered SAM can be placed on the laboratory workbench near the operator's position for great convenience during smear testing. The steps are simple. Open the drawer in SAM, put in the slide paper, wait for 2 minutes, and then read the measurement value. The measured values are displayed on the large LCD screen at the top of the instrument. You can use the two buttons on the top panel to configure various configuration settings, such as alarm settings, measurement units, etc. Optionally, Tyne can provide an amorphous tritium source with known activity, which can be used daily to confirm instrument calibration. If a specific reading is important, calibration checks can be easily performed before and after the reading. The calibration check source is installed on a board that slides into the same drawer as the paper used for smear The installation of smear paperboard SAM can also be used directly without the need to inspect tritium on flat conductive surfaces (such as stainless steel drums or glove boxes) or laboratory workbenches. The direct reading can not only measure the removable activity on the smear paper, but also measure the non removable near surface contamination, otherwise these contaminants would not be recorded by the smear.

Technical Specifications