There I want to save for me and for you most used units for radiology technologists.
1 mGy.cm2 = 0,0001 mGy.m2
1 mGy.m2 = 10.000 mGy.cm2
Simple example with respect to unit conversions:
When converting from Gy.cm2 to µGy.m2 the following reasoning can be followed: 1 Gy = 1,000,000 (1 million) µGy; 1 cm2 = 0.0001 m2; this means that 1 Gy.cm2 = 1,000,000*0.0001 µGy.m2 = 100 µGy.m2.
When converting from Gy.cm2 to µGy.m2 the following reasoning can be followed: 1 Gy = 1,000,000 (1 million) µGy; 1 cm2 = 0.0001 m2; this means that 1 Gy.cm2 = 1,000,000*0.0001 µGy.m2 = 100 µGy.m2.
1 gray (Gy) = 100 rads
10 mGy = 1 rad
1 mGy = 100 mrad
Other very good links:
http://veltcamp.blogspot.com/2011/06/dap-converter.html
https://veltcamp.blogspot.com/2019/08/effective-dose-calculator-radiography.html
http://www.sprawls.org/resources/RADQU/
Other info:
For example, a 5 cm × 5 cm X-ray field with an entrance dose of 1 mGy will yield a 25 mGy·cm2 DAP value. When the field is increased to 10 cm × 10 cm with the same entrance dose, the DAP increases to 100 mGy·cm2, which is four times the previous value.