1/44
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
Stochastic effects
long term effects of radiation
Another name for stochastic effects
probabilistic effects
Non Stochastic effects
effects that occur after a threshold dose
Another name for stochastic effect
deterministic effect
Catarctogenisis dose threshold
2 Gyt
What is the most sensitive stage of pregnancy
1st trimester/ organogenesis/ embryonic
Organogenesis dose for death
200 mSv
20 rem
What type of curve is seen in rad therapy
non linear/ sigmoid
Dose for skin erythema
200 rad
dose for hematologic depression
25 rad
.25 gy
What is the law of Bergenia and Thibodeau
radiosensitive of living tissues varies with mutation and metabolism
Protraction
continued dose but lower dose
Fractionation
same dose delivered at regular intervals
most radiosensitive stage of cell division
Mitosis/ M phase
What kind of curve is non stochastic
non linear threshold
Dose of hematopoietic
1-10 Gy
Dose of GI syndrome
10-50 Gy
Dose of Cerebrovascular syndrome
over 50 Gy
Lethal dose for adults
3.5 Gy
Gonadal dose that suppressed sperm population and female period
.1 Gyt
Gonadal dose that cause temporary sterility
2 Gyt
Gonadal dose that cause permanent sterility
5-6 Gyt
Most senseitve germ cell
spermatogonia
Primoridal follicle
What does the ICRP control
dose limits
What does the NRC do
Oversees nuclear energy industry
What does NAS/ NRC-BEIR do
studies effects of radiation
What does UNSCEAR do
formulate radiation protection guidelines
Leakage radiation limit
less than 100 mr/hr at 1 meter
Reproductability limit
X ray intensity should not exceed 5%
Linearity should not exceed
10% from one ma station to an adjacent ma station
SSD for station fluoro
38 cm
15 inches
SSD for mobile flouro
30cm
12 inch
Flouro IR assembly thickness
2 mm Pb equivalent
Controlled area limit radiation
100 mrem/week
Uncontrolled area limit radiation
2 mrem/week
Workload for x ray room
500 mAmin/week
Negligible individual dose
.01 mSv
Effective dose limit for public frequent exposure to body
1 mSv
Effective dose limit for public infrequent exposure to body
5 mSv
dose limit for public to eyes
15 mSv
dose limit for public to skin
50 mSv
Gonadal dose limit
.2 mSv
When do single strand DNA break happens
occurs during low LET
When do double strand dna break happen
During high LET