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DOE-HDBK-1109-97
Radiological Safety Training for Radiation-Producing (X-Ray) Devices
Instructor's Guide
Lesson Plan
Instructor's Notes
Example:
Assume:
2.5 mm Al filter
100 kVp
100 mA
1 sec exposure
30 cm distance
Dose estimate (in air, assuming electron
equilibrium): 12.8 Rad
(Compare these values to facility-specific equipment or
examples.)
iv. Latent Effects from Radiation Exposure.
The probability of a latent effect appearing several
years after radiation exposure depends on the
amount of the dose. The higher the dose, the
greater the risk of developing a health effect. When
an individual receives a large accidental exposure
and the prompt effects of that exposure have been
dealt with, there still remains a concern about latent
effects years after the exposure. Although there is
no unique disease associated with exposure to
radiation, there is a risk of the possibility of
developing fatal cancer. The higher the
accumulated dose, the greater is the risk of health
effect, based on the linear-no threshold model.
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