Revision sheet Flashcards
What is the function of the health physics organisation onboard and how is this achieved?
Routinely monitor radiological and atmospheric conditions on board.
Achieved by:
1. Issue personal dosimetry and maintain individual reports
2. Atmosphere and environmental monitoring
3. Radiochemistry
4. Radiation and contamination monitoring
What are 5 different types of radiation
- Alpha
- Beta
- Neutrons
- Gamma
- X-rays
What does ALARP stand for?
As low as reasonably practicable
What are the 3 principles that are employed to achieve ALARP?
- Time
- Distance
- Shielding
What are the 3 objectives that are also employed to maintain ALARP?
- Justify
- Optimise
- Limit
State 2 types of radiological surveys that are carried out and what they mean
Routine:
- Carried out around RC bulkheads at regular intervals.
- Ensures that primary and secondary shielding are intact
Emergency:
- Conducted after any collision/action damage
List the types of personal dosimetry used onboard
- TLD
- PED
- Records
List 8 precautions for entering the RC
- Reactor shut down
- Vent state red carried out
- Entry controlled
- EOOD/W permission obtained
- Protective clothing is to be worn at all times
- TLD and PED is to be worn at all times
- Brief given by tunnel monitor who will highlight high dose areas
- Eating and drinking prohibited
- Cuts are to be checked by the monitor and covered with a dressing
How many APD’s are fitted on board and where are they located?
- fwd in the DC equipment space
- aft in man room
- aft escape platform
How many reactor accident boxes are on board and where are they fitted?
- 1 deck WT flat by the fwd LET
- aft escape platform stbd side
List the 5 contents of the reactor accident box
- ADM 300
- PD12i
- Potassium iodide tablets
- Mechanical kill cards
- Reactor event instructions
List 2 fixed onboard radiation monitoring equipment
- Gamma alarm
- Radiac system
List 5 hand held onboard monitoring equipments
- ADM 300 V1A
- MK 32 NRM
- BSP 100
- XP 100
- Alpha probe
State the 6 pieces of equipment used for atmosphere monitoring?
- CAMS
- Drager tubes and pumps
- H2 contents meter
- MSA
- Analox
- Infraran
State the 5 members of the onboard health physics organisation
- XO
- Medical officer
- POMA
- LMA
- MA