class Detector(ReadonlyRegisterBase, ReadonlyRegisterMatrix):
    def doRead(self):
        return Convert.toUnsigned(axis.dataMatrix.read())
        
    def getWidth(self):
        return axis.data.width

    def getHeight(self):
        return axis.data.height

detector=Detector("detector")
detector.initialize()

tscan((energy_rbk, detector), 5, 1.0, stack=True)