> **Argonne National Laboratory**
>
> **Argonne National Laboratory**
>
> **Advanced Photon Source**
>
> **Standard Operating Procedures For**
>
> (*Location of LCA, indicate bldg. & room*)
>
> **Laser Controlled Area**
>
> ver #. (*Indicate version number*)
>
> (Current Date of Version)
>
> Prepared by:
>
> LCA Supervisor:
>
> [**John Doe**]{.underline}
>
> Name Printed Signature Date
>
> AOD ESH Coordinator:
>
> [**Edmund Chang**]{.underline}
>
> Name Printed Signature Date
>
> ANL-E Laser Safety Officer or Deputy Laser Safety Officer:
>
> [**Bruce Murdoch**]{.underline}
>
> Name Printed Signature Date
>
> **INTRODUCTION**
>
> Indicate in a paragraph the physical location of this LCA, include the
> building, room, etc. Provide a brief description of the overall mode
> of operation of this LCA, indicating the total number of active
> lasers. If diagrams or floor plans are available for this LCA, the
> descriptions should be noted here, and included as Appendix A at the
> end of this document.
>
> **LCA Supervisor**
>
> Indicate the LCA supervisor, including their badge number and how to
> contact him/her (i.e., phone extension and email address if
> available).
>
> **Authorized Users**
>
> While an important part of your SOP, this list of all Authorized
> Users, including their badge number, should appear as Appendix C of
> this document and users should sign the document to verify that they
> have read and understand the Standard Operating Procedure for the LCA.
> Appendix C can be updated as frequently as needed.
>
> **Scientific Collaborators & Spectators**
>
> Define what a Scientific Collaborator is and under what conditions
> will they be allowed in your LCA. A collaborator is a scientific or
> technical visitor who handles some other (non-laser) part of the
> experiment. Define under which circumstances they are allowed in and
> what they will do, what eyewear they must have etc.
>
> Define what a spectator is and under what conditions will they be
> allowed in your LCA.
>
> A spectator is a visitor who does not participate in the experiment.
> Define circumstances under which they are allowed in and what they
> will do. Typically, they will be allowed in only if lasers are off or
> all beams are enclosed.
>
> **NORMAL Laser OPERATION**
>
> Indicate the [General Setup]{.underline} of your LCA. This should
> provide a detailed description of what the essential system consists
> of; how it is set-up on the tables; how the output is directed; where
> the optical components are located; how the beam is terminated; where
> the emergency stop is located, if applicable; how and where the beam
> is enclosed, or unenclosed; and the height of the beam. Unenclosed
> beams have to be fully justified by the needs or nature of the
> experiment.
>
> List each laser in use in your LCA: 1) Indicate the Industrial Hygiene
> Identification Number (IHID); 2) Indicate the ANL Property #; 3)
> Indicate the serial number; 4) Indicate the class of the laser; 5)
> Indicate the type of eyewear appropriate for that laser. For each
> laser, provide a brief paragraph describing the essential technical
> specifications, such as wavelength(s), power, repetition rate, beam
> shape and dimensions, divergence, O.D. of eyewear needed for
> protection from a direct hit. An example follows:
>
> ***Example**:*
>
> ***Lambda Physik COMPex 102 Excimer Laser***

  ---------- --------------- ---------------- -------- --------------------
  IHID       Property \#     Serial \#        Class    Eyewear

  02346      P065553         9512E4280        4        O.D. 7
  ---------- --------------- ---------------- -------- --------------------

> This laser is capable of pulsed operation up to 20 Hz and can emit a
> variety of UV wavelengths that depend on the excimer gas, as listed
> below:

  ------------------- -------- -------- ----------- ------------ ----------
  Gas:                F~2~     ArF      KrF         XeCl         ZeF

  Wavelength (nm):    157      193      248         308          351

  Pulse energy (mJ):  10       200      350         200          150
  ------------------- -------- -------- ----------- ------------ ----------

> The laser is currently optimized for fluorine operation, and thus its
> use with XeCl is not recommended at this time. The main purpose of
> this laser is to photodissociate the sample molecular beam, although
> it can be used to pump one of the dye lasers (IHID# 1234 and #44443
> above).
>
> **Eyewear section**
>
> This section contains the calculation or specification for the
> calculation of O.D. for eyewear appropriate to your operating
> conditions. If several types of eyewear are normally used in the LCA,
> indicate the different types and the laser for which they are needed.
> If there is a simple solution for eyewear (such as eyewear X is always
> worn when laser Y is on) list it here. However, if it is complex
> consider providing the information in a table or graph form, (as
> Appendix B to this document) indicating the types of eyewear
> appropriate to the lasers used in this LCA. The supervisor should
> consider posting such a graph or chart in the lab. Also, indicate
> spectator and collaborator eyewear here, if different than that of the
> operator.
>
> Note that eyewear shall be physically inspected at least annually for
> damage or deterioration. Indicate your testing procedure including
> intervals and your procedures for logging of this practice.
>
> **Alignment Hazard CONTROL**
>
> Indicate the [General Setup]{.underline} for the alignment procedure
> of your LCA. Describe internal (manufacturer procedures can be
> deferred to the respective laser manuals) and external alignments of
> the beams separately. If possible, break down this information
> according to each laser.
>
> Describe in adequate detail alignment procedures, listing the changes
> in set-up that may occur. Provide a detailed description of changes
> that are made to shielding, housing etc., to access the beam, how is
> alignment done, and what is monitored/viewed to optimize alignment
> etc. Indicate what type of eyewear is used if different than normal,
> and give a calculation supporting a lower O.D. Include spectator and
> collaborator policy during this procedure here.
>
> Indicate all other non-routine work here.
>
> ***Example:***
>
> ***Laser 02346 - Lambda Physik COMPex 102 Excimer Laser*** This laser
> is factory aligned and generally does not require any addition
> internal adjustments. Routine minor adjustments are to be performed at
> the lowest power feasible and in complete accord with the
> manufacturer's maintenance manual.
>
> **LASER HAZARD CONTROL**
>
> 1\. *Door Interlocks:* Describe in detail all the interlock systems
> used to control entry to the LCA.
>
> Indicate your testing procedure, including intervals, and how you
> document this practice.
>
> Note that interlocks must be tested at least quarterly for proper
> operation.
>
> 2\. *Window/Door Covers:* Describe all covers and materials used for
> control. Indicate
>
> your testing procedure including intervals and your procedures for
> logging of this practice.
>
> 3\. *Warning Signs:* Describe all signs posted,especially at the
> entrance for control. Indicate
>
> your testing procedure including intervals and your procedures for
> logging of this practice.
>
> 4\. *Unauthorized Operation (Class 4):* Describe the methods used in
> the LCA to
>
> prevent unauthorized operation (e.g.,lab is locked when nobody is in,
> and/or laser keys
>
> removed, etc.)
>
> 5\. *Invisible Laser Beam "ON" Indicator:* Describe the methods used
> in the LCA to indicate that
>
> invisible beams are on.
>
> 6\. *Emergency Cut-off Switch (Class 4)* : Describe the panic switch
> operation and location
>
> in the LCA.
>
> Provide some general discussion regarding the type of activities that
> are permitted when the laser is on under normal conditions. Discuss
> proper training, adequate care, and laboratory practices. Include the
> additional use of computers and monitors and the positioning and/or
> shielding of the these items. Note in this area the additional hazard
> controls used for chemicals, high voltage, hot plates, glassware,
> cryogenic fluids, other equipment.
>
> **CONTROL OF Additional lca hazards**
>
> Indicate other possible hazards associated with the lasers in your
> LCA.
>
> ***Example :***
>
> Some of the lasers listed above pose additional hazards over and above
> those associate with the laser light output. These include:
>
> ***Laser 02346 - Lambda Physik COMPex 102 Excimer Laser*** The high
> voltage circuitry associated with this laser is contained within the
> laser cabinet, and cannot be accessed except by removing the cover (as
> performed during maintenance and repair). An interlock switch on the
> cabinet prevents the high voltage circuits from charging when the
> cover is opened, except when this switch is deliberately defeated.
>
> Compressed gases are used to generate the lasting medium for this
> laser. Compressed He, Ne , Ar, Kr, Xe, 5% Hcl - 1% H~2~ in He, and
> other necessary gases or mixture are contained either in full-size or
> reduced-size standard high pressure tanks fitted with appropriate
> regulators. Typically, the tanks are located in the dedicated space
> along the east wall. At all time the tanks are rigidly secured using
> standard straps and/or chains. When appropriate form the safety
> viewpoint, the smaller size cylinders can be located in the adjacent
> hood. All corrosive gases are fed into the laser inlet using tubing
> made of compatible materials. In particular, tubing used for mixtures
> containing elevated concentrations of F2 has to be properly passivated
> prior to routine use.
>
> **ASSOCIATED CHEMICAL HAZARD CONTROL**
>
> List chemicals used in this LCA include a list MSDS numbers, or attach
> MSDS's to the end of the document (not required to attach MSDS
> sheets). If you prefer, provide the chemical list section from your
> Project Review Document as an Appendix. Indicate in this section if
> there is a registered Satellite Waste Accumulation Area in the LCA and
> where it is located. Discuss any site-specific chemical hazards for
> this LCA in this section.
>
> **Control of Emergencies & ABNORMAL Situations**
>
> Describe some of the general emergencies (fire, explosion, personal
> injury, etc.,) that are possible with the site specific hazards in the
> laboratory. This section provides some guidance for other
> extraordinary situations that may require immediate action in order to
> avoid the possibility of personal injury or equipment damage.
>
> In any emergency or unusual situation, the main rule of thumb is to
> act conservatively, and protect personnel and equipment as much as
> possible. Action can be taken only if it is safe to do so. If a
> situation is out of your control, get help by dialing 911.
>
> [                               ]{.underline}
>
> **aPPENdIX A**
>
> **FLOOR PLAN DIAGRAM**
>
> If diagrams or floor plans are available for this LCA, the
> descriptions should be noted and included.
>
> **aPPENdIX B**
>
> **Eyewear section**
>
> Shall contain the calculation of O.D. for eyewear. A chart or graph
> indicating the types of eyewear appropriate to the lasers used in this
> LCA.
>
> **aPPENdIX C**
>
> **Authorized Users**
>
> List all Authorized Users, include their badge number. Users should
> sign the document to verify that they have read and understand the
> Standard Operating Procedure for the LCA.

  --------------------- ----------- -------------------------------------
  **Name** (printed)    **Badge**   **Signature**

                                    

                                    
  --------------------- ----------- -------------------------------------

> In addition to personnel named above, authorized users of this laser
> include non-resident personnel whose fulfillment of laser safety
> training requirements is documented by attachment of evidence of their
> training to the relevant ESAF.