Units of Radiation Measurement Flashcards
What are the 3 quantities of radiation measurment?
- ) Exposure
- ) Dose
- ) Dose equivelant
There are 2 equivalent systems of radiation measurement. What are they?
- ) The Traditional System
2. ) The Standard International System (SI)
What does SI stand for?
The Standard International System
What system of radiation is better to use when possible?
Standard International System (SI)
What are “R” and C/Kg, and what do they do?
1.) Roentgen
2.) Coulomb per kilogram
They measure exposure to ionizing radiation in the air.
What does R stand for?
Roentgen
What does C/Kg stand for?
Coulomb per kilogram
What is C/Kg (Coulomb per kilogram)?
the SI equivalent of the roentgen
What do Rad and Gy (Grey) do?
Measure absorbed dose.
What is “absorbed dose”?
The amount of radiation absorbed by the tissues.
What does Gy stand for?
Grey
What does Rad stand for?
Radiation absorbed dose.
What is the Rad (Radiation absorbed dose)?
Traditional unit of measurement for absorbed dose.
What is Grey (Gy)?
The SI equivalent of Rad (Radiation absorbed dose).
What do Rem and Sv do?
Measure dose equivalent
What does Rem stand for?
Roentgen equivalent mammal
What does Rem (Roentgen equivalent mammal) do?
The traditional unit used to equate the effects of different kinds of ionizing radiation on human tissue.
What does Su stand for?
Sievert
What is the Su (Sievert)?
The SI equivalent of Rem (Roentgen equivalent mammal)
What does MPD stand for?
Maximum Permissible Dose
What is the MPD (Maximum Permissible Dose)?
Dose equivalent of ionizing radiation that should not cause physical bodily damage in most people within their lifetime.
What is the MPD (Maximum permissible dose) for operators?
5 rem per year
What is the MPD (Maximum permissible dose) for the general public?
0.5 rem
