Experiment Hazard Class 4.3b – Use of Class 3b Lasers
This hazard classification applies to all experiments involving class 3b lasers. Other hazard classifications and their associated hazard controls may also apply to experiments in this hazard class.
Experiments involving previously reviewed hazard controls qualify for medium risk.
Experiments involving new equipment or modified hazard control schemes are categorized as high risk.
Experiment Hazard Control Verification Statements
Before a class 3b laser is first used at the APS, appropriate engineered controls and procedural controls must be developed and implemented. See the summary of laser operation requirements and model SOP.
Engineered Controls – The engineered controls for an existing reviewed and approved laser installation should already be in place and described in necessary detail in the applicable standard operating procedure. Guidance for new installations is available at the link in the paragraph above.
Procedural Controls – All work with class 3b lasers must be performed in accordance with a standard operating procedure (SOP). The procedure must have been reviewed and approved by the APS and the Argonne Laser Safety Officer (LSO). Experimenters can obtain copies of SOPs for existing laser facilities from the appropriate LCA Supervisor. Guidance for new installations and a model SOP are available at the link in this section's introductory paragraph.
Design Reviews and Equipment Inspections – All Class 3b lasers at Argonne must be registered with and reviewed by the Argonne Laser Safety Officer (LSO) and an ANL Laser Operating Permit, ANL-609A must be obtained. Please contact the APS Laser Safety Officer (2-6714, firstname.lastname@example.org) to obtain an ANL-609A form. All SOPs must be reviewed and approved by APS management.
- ESH120, Laser Safety Training
- Orientation to standard operating procedure for the laser facility
- Note: If the Argonne LSO approved SOP for the laser system includes a "User Mode" of operation that utilizes engineered controls to reclassify the system as only a class 1 or class 2 equivalent, then the requirement for training and eye exams is waived for "User Mode" only operation. Any other mode of operation of the laser would reinstate the training and eye exam requirements.
Signs and Labeling – Required signs and labeling should already be in place for previously reviewed laser facilities. The requirements specific to an installation should be listed in the associated standard operating procedure. Lasers brought to the APS must have a label that clearly indicates the class of the laser. The Argonne LSO or the APS will provide signs needed for new installations.
Personal Protective Equipment – PPE requirements for laser usage are specified in the associated standard operating procedure
Dosimetry and Monitoring – Eye examination: Users of class 3b lasers must, prior to work with such laser, have an eye examination meeting the expectations of the Argonne National Laboratory Medical Department. APS users have several options:
- Make arrangements with the Argonne Medical Department through Bruce Glagola (2-9797, email@example.com) or
- Undergo an examination conducted by an ophthalmologist near your home institution. The ophthalmologist must complete the Argonne Special Eye Exam Sheet (eye exam form). The user should bring the completed eye exam sheet to the APS and provide it to the laser control area supervisor for the host beamline or to Bruce Glagola (2-9797, firstname.lastname@example.org, Building 431Z, Room 009).
An eye examination may also be conducted at a facilitiy (Larson Eye Center, 4958 Forest Ave., Downers Grove, IL 60515, directions, 630-737-1001) or (Family Eyecare of Bolingbrook,333 N. Weber Rd.,Bolingbrook, IL 60490, www.bolingbrookeyecare.com, directions, 630-771-0600) near Argonne National Laboratory. Contact the Argonne Medical Department (630-252-2811) to arrange for an exam. The ophthalmologist must also complete the Argonne Special Eye Exam sheet (eye exam form). The user should bring the completed eye exam sheet to the APS to provide to the LCA supervisor or Bruce Glagola (2-9797, email@example.com, Building 431Z, Room 009).
Unless otherwise noted in the approved experiment safety plan, the Director of the APS Engineering Support Division delegates the authority to authorize an experiment in this hazard class to the AES ES&H Coordinator or his delegate, a member of the APS Experiment Safety Review Board, and resident beamline personnel appearing in the Director of the AES's list of personnel having the authority to authorize experiments.
Hazard Control Verification
The Director of the APS Engineering Support Division delegates responsibility for verifying that required controls are in place to the experiment On-site Spokesperson and the local beamline Laser Safety Officer
ANL-ESH Section 6.2, Rev. 3, Laboratory-wide Procedure; Nonionizing Radiation Protection - Laser Safety
Reviewed April 16, 2013