Steps for a Cable-Drive Exposure (8)

Question 1

Steps to follow when using an exposure device for radiography

Answer 1

• removing equipment from shielded storage enclosure
• verifying equipment prior to use
• setting up the exposure
• taking the exposure (actions to be followed during, after and after complete operation)

Question 2

Removing equipment from the shielded storage enclosure

Answer 2

also known as a permanent controlled area

• must be resistant to fire and located away from corrosive and explosive hazards
• warning signs, symbols, information about emergency contacts (if dose rate is 25mSv/h)
• locked door

Question 3

Equipment verification prior to exposure device use

Answer 3

done on safety equipment, exposure device and ancillary equipment

Question 4

When the operation is to be conducted away from the licensee’s premises…

Answer 4

a few more checks have to be done.

Question 5

Safe procedure at a job site

Answer 5

client and operating organization should plan the job and asses conditions together to facilitate work, save time and limit exposure

Question 6

What should you do when arriving to a job site

Answer 6

• report to site supervisor
• find out type, size and location of job
• learn about workers scheduled breaks

Question 7

Steps to follow before an exposure

Cable-Drive

Answer 7

1. wearing a DRD, PAD, TLD or OSL
2. verify survey meter operation
3. survey exposure device walls and inspect ancillary equipment
   - set up the shot
4. connect head hose + drive cable and ensure connection with a NO NOGO, lock camera, refer to operation manual
5. lay the drive cable and source guide tube out (as straight as possible)
6. additional shielding
7. set up barrier
8. ensure everyone is out of area, monitor entry points
9. last check DRD
10. unlock exposure device + set to operate

Question 8

Steps to follow during an exposure

Cable-Drive

Answer 8

1. push the Popsi-lock so red tag is visible
2. quickly project source + monitor with survey meter
3. set timer for exposure
4. survey boundaries and ensure rate is <0.1mSv/h
5. constant control of radiation area
6. quickly crank to retract + monitor source travel with a survey meter
7. ensure Popsi-lock engages to green position

Question 9

Steps to follow after an exposure

Cable-Drive

Answer 9

1. approach exposure device with a survey meter in front

2. survey camera and head hose to ensure they are shielded and compare reading from prior to exposure

Question 10

Steps to follow after operation

Cable-Drive

Answer 10

1. monitor with survey meter and disconnect head hose and crank, inserting plugs and covers
2. lock exposure device
3. check DRD
4. take down signs and barriers
5. store exposure device in secure area
6. inform supervisor work is complete