What is required for beam-on indicator?

What is required for beam-on indicator?

• A. Not required
• B. Functional
• C. Optional
• D. Must be recalibrated annually

Answer: (B)

The essential idea is that a beam-on indicator must be functional to protect people from unintended exposure. This indicator provides an immediate, clear signal that the radiation beam is active, so the operator and anyone nearby know that exposure is occurring. If the indicator isn’t working, there’s no reliable visual cue to stop or double-check actions, which greatly increases the risk of accidental exposure. Therefore, the requirement is that the beam-on indicator be functional—that is, reliably indicate when the beam is on and switch off when the beam is off. Regular QA checks should verify its proper operation as part of safety testing, but the core requirement is operability, not a separate calibration duty for the indicator itself.

The essential idea is that a beam-on indicator must be functional to protect people from unintended exposure. This indicator provides an immediate, clear signal that the radiation beam is active, so the operator and anyone nearby know that exposure is occurring. If the indicator isn’t working, there’s no reliable visual cue to stop or double-check actions, which greatly increases the risk of accidental exposure. Therefore, the requirement is that the beam-on indicator be functional—that is, reliably indicate when the beam is on and switch off when the beam is off. Regular QA checks should verify its proper operation as part of safety testing, but the core requirement is operability, not a separate calibration duty for the indicator itself.