A term used to quantify radiographic exposures made with a gamma-ray source. it is the product of the activity of the source in millicuries and the exposure time in hours.
Milliampere-seconds (rt), английский A term used to quantify radiographic exposures made with x-rays. it is the product of tube current in milliamperes and exposure time in seconds. abbreviation
Soft x-rays, английский A term used to express the quality or penetrating power of x radiation; their penetrating power is relatively light.
