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Neutron Backscatter
Neutron Backscatter
The neutron backscatter technique is used to obtain accurate levels through the wall of the vessel.
The NuScan obtains its readings in front of the scanning head so it can be used on any diameter of vessel to measure the contents next to the exterior wall.
The handheld device has an extension handle to increase the reach of the operator which decreases the need for scaffolding and ladders.
Liquid and vapour levels in tanks and vessels
Interfaces between two liquids in vessels
Separator studies to determine water, oil and vapour levels
Calibrate and verify existing gauges
Determine packing or catalyst levels
Locate deposits in heat exchangers
Blockages in pipelines
Check for wet insulation on above ground pipelines – external corrosion
Liquid levels in downcomers
Sludge buildup in flare lines
Gaps below above ground storage tank floors
How does it work?
How does it work?
As the scanner is moved along the vessel shell the readings obtained will be proportional to the amount of hydrogen in front of the scanning head. It can be extended to 3meters, otherwise scaffolding may be required to reach higher level.
The higher the hydrogen concentration the larger the received signal.
Interfaces between hydrogen rich liquids and vapors produce a large difference in signal. An interface between two liquids will normally record less of a difference depending on the hydrogen concentration of each.
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