LSO11: Conducting the Laser Safety Evaluation Flashcards
Laser Safety Evaluation: Role of LSO
Be responsible for hazard evaluation of Laser work
Assured that prescribed controls are in place
Review class 3b and 4 installations, facilities and laser use: suitable for use and perform in that area
Periodically audit to ensure that particular control in place continue be effective
What does laser safety evaluation process involves?
Identifying the hazards, assessing the risks, recommendation for bringing the hazards down to appropriate level
When is Laser safety evaluation performed?
when new laser is acquired,
periodic evaluation to ensure that hazards are adequately controlled
What is laser risk?
A severity of the event and the probability of the event
What are types of risk?
Voluntary risk
Involuntary risk- no control such as breathing air with some sort of contaminant
Implement control to reduce risk
When should a laser or laser system be evaluated?
Periodically at a frequency determined by LSO, before the laser is first used, whenever the laser is modified or its use significantly change
Answer: all of the above
What is class 1 and 1M laser risk?
No harm possible under intended conditions of use
1M: no harm , unless magnifying optics are used to view the beam
What are class 2 and 2M laser risk?
No harm unless deliberate staring to the beam
2M: no harm as long as deliberate view occurs under magnifying optics
What are class 3R laser risk?
harm can be caused with the extended viewing. The time required for 3R for aversion response
What are class 3B laser risk?
Immediate harm through direct exposure, diffuse reflection normally safe
What are Class 4 laser risk?
immediate harm through direct and diffuse reflection as well as damage to the skin
What does laser hazard classification don’t provide?
Laser classification provides no information on the distance from the laser where the hazards exit.
No information about the non-bean hazard
what does laser classification tell you?
Laser classification warns the user of laser potential for causing injury, but doesn’t quantify the severity of the harm
What is laser risk assessment and control process?
ID and characterized hazards,eliminate when practical, when total risk is not possible, perform assessment to minimize risk
What are types of the risk?
Probabilistic risk assessment
Deterministic risk assessment : considerable factors for radiation exposure.
