| 摘要 |
Arrangement for calibration of at least one radiation-sensitive detector means, whereby the arrangement comprises an aperture (90), and at least one reference body (50, 60, 600) which emits radiation with a measurable intensity. The arrangement further comprises a deflection member (160, 170, 620) which deflects radiation from the reference body, and at least one radiation-sensitive detector means (30) which detects the radiation value and generates an output signal dependent on the detected radiation value. The deflection member is arranged to reproduce the aperture (90) on the reference body (50, 60, 600) and the deflection member (160, 170, 620) deflects the radiation such that the midpoint of the reproduction of the aperture (90) remains on substantially the same surface of the reference body (50, 60, 600) during that time period in which the detector means receives radiation which is transmitted from the reference body and which passes through the aperture (90). |
