How do I perform a uniformity calibration w/ LDA 99SC detector?
Place the LDA-99 SC in the --/++diagonal position and move it as low as possible (e.g., 30 cm) to have a larger field size.
Open the field size as far as possible (normally 40 cm × 40 cm).
In Queue Setup > Queue Settings, set the Detector Orientation to the --/++ diagonal position and the Device turn angle to 270˚.
Click the Measurement button in the Tasks panel
In Controller panel, click Connect, and then perform Gantry coord., Limits, Background, Auto gain, Normalization.
In Electrometer panel, select the Calibration tab and then enter the values in the Dose rate and Sampling time boxes.
enter the energy used for calibration in the text field.
Turn on the beam and then click the Calibrate button.
Switch off the beam and click OK in the Background measurement popup message to start the background measurement.