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# Rectangular Detector¶

The rectangular detector is a detector bank that is marked as being a regular rectangular bank. It is a particular class in Mantid (RectangularDetector).

In order to be a RectangularDetector, a bank has to have these characteristics:

• All pixels are the same size and shape (can be any size/shape)

• The pixels are regularly spaced (the X/Y spacing can be different)

• The pixels form a rectangular array (there can be gaps between pixels).

Several instruments including TOPAZ, PG3 and SNAP instruments use RectangularDetectors.

See the InstrumentDefinitionFile page for instructions on defining a rectangular detector.

Category: Concepts