Jefferson Lab
Rad Emergencies, Alarms and Responses
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1) How would someone know they are in the beam enclosure during potential beam-on conditions?

  1. Run/Safe box with a yellow light

  2. Run/Safe box with a red light

  3. there would be a loud hissing sound

  4. a flashing blue light

2) The worst-case radiation accident scenario at TJNAF is a direct, beam-on exposure to someone in the tunnel. What is the potential impact of such an accident?

  1. exposure to RF radiation

  2. a lethal radiation dose

  3. an ODH emergency

  4. inhalation of ozone and other poisonous gases

3) In the case of a radiation emergency on the accelerator site, the first notification (following a 911 call, if necessary) should be to the .

4) CARMs monitor radiation levels:

  1. in the interlocked beam enclosure

  2. in occupied areas near the beam enclosure

  3. in the EEL building

5) If a CARM alarms, workers in the area should:

  1. ignore it, the crew chief already knows something is wrong

  2. stop work, warn others, leave the area, and notify the crew chief

  3. call the RCG

  4. hit the "acknowledge" button so the beam can be turned back on

6) The rotating magenta beacon an emergency alarm. These beacons alert personnel to the existence of radiation levels.

7) If a person is located in a High Radiation Area and experiences a severe traumatic injury, the primary concern of ALL by-standers, safety professionals, and rescue personnel is :

8) If you encounter a spill of contaminated water, you should:

  1. try to stop the spill if you can without making the situation worse

  2. warn others in the area to stay away from the spill area

  3. isolate the area, call the RCG, and await their arrival at a safe distance

  4. all of the above


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