How is radiactivedating performed serious dating site
Absolute age dating is like saying you are 15 years old and your grandfather is 77 years old.To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This rule is common sense, but it serves as a powerful reference point.
Different body parts have different sensitivities to radiation.
X-rays, unlike sunlight, can penetrate deep into the body and deposit energy in internal organs. Absorbed dose describes the intensity of the energy deposited in any small amount of tissue located anywhere in the body.
The unit of measurement for absorbed dose is the milligray (m Gy).
Effective dose is not intended to apply to a specific patient.
The actual risk to a patient might be higher or lower, depending on the size of the patient and the type of procedure.