Radiation 602 Flashcards
What are the two types of hazards associated with ionising radiation
External irradiation
Internal contamination
What radiation causes external irritation causing internal damage by penetration
Gamma and x rays
How can we protect ourselves
Time
Distance
shielding
What type of radiation presents internal hazards
Alpha beta and particles of gamma if inhaled , ingested, absorbed or injected
What is the IRR “ ironising radiations regulations dose limit for employees
20msv per year
13msv in any consecutive three month period for women
What is the LFB!s radiation dose constraint for employees
10msv per year
What dose are EPD’s programmed to alarm at
100 uSv per hour
What is the initial cordon size
25mtrs
When committing BA teams to a radiation effected area , what time distance shielding control is to be adhered by
Minimum time
Maximum distance
Maximum shielding
What should every team committed to the inner cordon take with them
Survey meter
At what radiation level should teams withdraw from an inner cordon
5mSv
What form is to be filled out post incident after being deployed to the inner zone
Form 2608
What are the three sources of radiation
Cosmic
Terrestrial
Artificial
