Laser Standard Operating Procedure
Contents
1. Name Signature Date EHS review Reviewed by EHS Name Title Date2. person is present announce increase in power so that all present are aware of the change Other tips Allow only trained personnel to be present during alignment Minimize the number of personnel present during the alignment All present must wear appropriate eyewear If possible avoid using beam paths that are at sitting or standing eye level Where feasible use low power class 2 or 3A visible lasers to simulate the path of high power or invisible lasers Where feasible terminate laser beams and specular reflections on diffuse reflecting beam blocks Use phosphor cards IR viewers video cameras or other display devices to locate invisible beams Locate any specular reflections of the beam and block them as close to the source as possible Whenever possible reduce all high power laser beams to the minimum possible power Use beam shutters to block high power beams any time they are not actually needed Note It is sometimes necessary to align clean or otherwise maintain the internal components of a laser If this is so for this laser please attach a procedure for this process as an addendum Describe how you will perform this work in a safe manner If this is performed by a vendor please indicate so 5 CONTROL MEASURES LASER LASER SYSTEM CONTROLS pen CONTROL COMMENTS Entryway door Interlocks or controls C Laser enclosure interlocks C Laser hou
3. LASER SAFETY STANDARD OPERATING PROCEDURE Principle Investigator Location Class 4 Laser s Manufacturer amp Model No LASER SAFETY CONTACTS Laser Safety Officer lab Maintenance Repair Yale Health Acute Care 203 432 0123 EHS Emergency 203 785 3555 1 LASER LAYOUT Phone Phone _ Attach a diagram of area layout as well as a digital photograph of all Class 4 lasers in the lab 2 LASER SAFETY PROGRAM Responsibilities of the laser operator s Operator will ensure the safety of any personnel that might enter the room and will advise same of the status of the lasers and optics this includes ensuring use of protective eyewear where required The laser user is responsible for the safe of the laser s at all times Incidents accidents will be reported promptly to EHS Laser Training Requirements Part 1 of the training involves revision the Power Point presentation at http ehs yale edu training laser safety training The Principal Investigator is responsible for providing instruction in the safe and appropriate use of the laser related to the specific research project which constitutes Part 2 of the training Laser Registration Requirements EHS must be notified of the intent to purchase any class 3B or 4 lasers Supply the manufacturer model number wavelengths maximum power levels beam profile beam diameter and beam divergence Personnel Protective Equipment R
4. equirements EHS will review the laser application SOP Typically protective eyewear will be required Other protective equipment may be needed This will be evaluated on a case by case basis Users are responsible for purchasing and using prescribed protective equipment Disposal Requirements EHS requires proper disposal of all class 3B and 4 lasers The laser may contain toxic or hazardous materials which require proper disposal The laser must be deactivated prior to disposal This may be performed by EHS the user with EHS verification or a vendor 3 OPERATING PROCEDURES add additional information based on your application Remove jewelry that might reflect beams Obtain appropriate eyewear Be certain it is of appropriate OD for the wavelength s in use Turn on outside warning light Inspect optical setup for recent changes and or foreign objects Verify that all personnel in lab are wearing approved eyewear Issue verbal warning prior to starting laser Insert key into laser controller Proceed as per User Manual to obtain laser output Comments 4 ALIGNMENT PROCEDURES Special alignment procedures Use low power alignment laser when possible Use lowest possible energy setting Survey area with UV IR viewer if necessary for reflections and confine such reflections to the optics table Only after completing these procedures should the laser be increased to desired power and repetition rate If more than one
5. sing interlocks Emergency STOP Panic button C Master switch operated by key or code C Laser secured to base C Beam stops beam attenuators C Protective barriers C Warning signs C Reference to equipment manual C Extra eyewear available Comments HAZARDS AND CONTROLS CHECKLIST ae HAZARD CONTROL MEASURES IMPLEMENTED L Unenclosed beam access to direct or scattered light C Laser at eye level of person sitting or standing C Ultraviolet radiation Blue light exposure C Reflective material in beam path LC Hazardous materials waste dyes solvents other Fumes Vapors C Electrical LC Capacitors L Compressed gasses JFire C Trip Hazard Comments 6 PERSONNEL PROTECTIVE EQUIPMENT A Eyewear Please see the Laser Authorization from for Laser Protective Eyewear EHS Comments Review your application and be certain you have selected eyewear of appropriate OD optical density for the wavelength and power levels Users are responsible for selection purchase and appropriate use of eyewear B Other protective equipment required within the Nominal Hazard Zone ITEM LOCATION USAGE CONDITION OPERATOR REVIEW have read and understood this procedure its content the EHS review below and attached addendum agree to follow this procedure each time use the laser laser system Please be certain to read any addendums to this SOP prior to signing
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