 |
|||
|
|
|||
|
|
|||
| ||||||||||
|
|  DOE-HDBK-1130-98
Module 1: Radiological Fundamentals
Instructor's Notes
Quality Factors:
alpha
= 20
beta
=1
gamma/x-ray
=1
EO8 Convert rem to
= 2-11 (depending on the energy)
millirem and millirem to rem.
e.
1 rem = 1,000 millirem (mrem).
4. Radiation dose and dose rate
a.
Radiation dose rate is the dose per time.
b. Example:
1) Radiation dose rate = dose/time.
2) Radiation dose equivalent rate = mrem/hr.
3) Radiation absorbed dose rate = mrad/hr.
Table 1-6
Radiation Units
Rad
Rem
Roentgen (R)
(Radiation Absorbed Dose)
(Roentgen Equivalent Man)
Unit for
Unit for measuring
Unit for measuring dose
measuring
absorbed dose in any
equivalence (most
exposure.
material.
commonly used unit).
Defined only for
Defined for any material.
Pertains to human body.
effect on air.
Applies only to
Applies to all types of
Applies to all types of
gamma and X-ray
radiation.
radiation.
radiation.
Does not relate
Does not take into account
Takes into account the
biological effects
the potential effect that
energy absorbed (dose) and
of radiation to the
different types of radiation
the biological effect on the
human body.
have on the body.
body due to the different
types of radiation.
Equal doses of different
types of radiation (as
measured in rad) can cause
different levels of damage to
the body (measured in rem).
16
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals