SLAC National Accelerator Laboratory

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User Logistics

Accommodations/Hours/Maps | Agreements | Check-In | Computing | Safety | Shipping | Supplies & Gases | User Feedback | Publications

Proposal Submission and Scheduling

LCLS experiments start with submitting a proposal, usually due twice a year. Each proposal is for one specific experiment and each proposal is valid for one scheduling cycle only. There is no limit to the number of proposals that can be submitted by a scientist or experiment team.

Proposals submitted to LCLS are peer reviewed and ranked by the LCLS Proposal Review Panel.

The highest ranked proposals (~ best 20-30% of proposed experiments) are most likely to be offered beam time approximately 9 months after being submitted and selected.

The proposal spokesperson will be notified about beam time assignments by email and the schedule will be posted to the website.

The proposal spokesperson should log in to User Portal to submit a "Beam Time Support Request"; this acknowledges your plan to use the beam time allocation. In the Beam Time Support Request spokesperson would be able to delegate a "Lead Contact", if she/he is not planning to supervise the experiment, provide all the required information as the instrument, sample preparation lab access, international shipments, safety information, etc.

The spokesperson will indicate if a team member planning to be "onsite", authorize his/her access to the sample preparation laboratory and a unix account. Also new collaborators may be added here.

When planning your experiment and submitting your support request, please also alert us if you anticipate needing any special training or user support or if there are potential safety considerations which have not been cleared with the safety office.

Safety Training

See details on User Safety.

Use Agreements

All user experiments must be run under the terms of a User Agreement executed by the appropriate institutional officer(s) at your institution and their counterpart at Stanford University. A single User Agreement covers all experimenters from that institution. Collaborators who are not coming to use the lightsource do not require a User Agreement. These signed agreements must be completed prior to the beginning of any experiments here.

The Department of Energy has implemented standard user agreements for Non-Proprietary Research and for Proprietary Research. Only minor modifications to the terms of the agreements may be made by the user institution or contractor. Substantive changes require approval by the DOE Contracting Officer which will likely delay user access to the user facility. In instances where DOE Contracting Officer approval for substantive changes cannot be obtained, Work for Others (WFOs) and Cooperative Research and Development Agreements (CRADAs) may be more appropriate agreement mechanisms.

To verify whether or not a current user agreement is in place between your institution and Stanford University, please contact Theresa Wong (650-926-4077) or Cathy Knotts (650-926-3191).

Non-Proprietary User Agreement (Format: RTF, PDF)

Proprietary User Agreement (Format: RTF, PDF)

Mail the completed and signed agreement(s) to:

Cathy Knotts
SLAC National Accelerator Laboratory
User Research Administration, MS 69
2575 Sand Hill Road
Menlo Park, CA 94025

User Agreements Executed With These User Institutions

User Financial Accounts

Why Have a User Financial Account?

Each user group should establish a user financial account to procure gases, chemicals, supplies or services to support your experiment at SLAC’s user facilities and to send samples, dewars, or other equipment between SLAC and your institution.

Establishing/Renewing a User Financial Account

The most common method of establishing or renewing a user financial account is by providing a purchase order (PO) (or a letter from the financial officer of the user institution). The PO should be made to SLAC National Accelerator Laboratory for the amount of estimated expenditures (the suggested minimum is $2,000). The PO should include the expiration date, user names, funding agency, grant/contract number and whether expenditures are taxable in California. Terms and Conditions should not be included (if Terms and Conditions are preprinted on the form, they should be disclaimed).  The suggested minimum amount to open a user account is $2000. Send the completed User Financial Account Form and purchase order to:

Jackie Kerlegan (SSRL)
User Research Administration
SLAC National Accelerator Laboratory
2575 Sand Hill Rd., MS 99
Menlo Park, CA 94025
Tel: 650-926-2079
Fax: 650-926-4499/3600
Kelley Ramsey (LCLS)
Linac Coherent Light Source
SLAC National Accelerator Laboratory
2575 Sand Hill Rd., MS 19
Menlo Park, CA 94025
Tel: 650-926-8663

Additional Charges

  • Sales Tax: California sales and use tax of 9.0% will apply to the price of all materials purchased and delivered in the state of California.**If not taxable and not DOE M&O, provide documentation indicating this status. Tax exemptions awarded under IRS rulings are not accepted by the California Board of Equalization; Sales tax exemptions awarded under individual state rulings apply only to the state making the ruling. The State of California does not recognize or extend reciprocity of tax-exempt status to other states. The only provision which will establish tax-exempt status under California ruling is that the title of property purchased for use in California vests with the United States government.
  • SLAC Overhead: Additional charges apply for materials, supplies and services procured by users through a SLAC user financial account. Materials, supplies ~9.765% (if using SLAC's e-procurement the rate is ~4.725%) SLAC Labor ~56%
  • Other Miscellaneous Charges: Safeguard & Security Charge ~1.5% charged to all non-DOE projects/facilities, Federal Administrative Charge ~3% charged to all foreign and domestic entities (excluding domestic non-profits or educational institutions)


Invoices will be submitted to the user institution on a monthly basis for costs incurred by the user group to support their experiments at SLAC’s user facilities. Payments should reference the invoice and user account numbers. Send to SLAC National Accelerator Laboratory, Accounts Payable, MS 09, 2575 Sand Hill Rd, Menlo Park, CA 94025 USA.

Gases & Cryogenics

Please note that users are not allowed to bring chemicals or gases to SLAC.

LCLS stocks small quantities of rare gases (helium, neon, argon, krypton) for use as calibration standards. In addition, liquid nitrogen and nitrogen boil-off gas are available in small quantities. We also stock ethanol and acetone in our labs for use as cleaning solvents.

Any other chemical or gas that is needed for an LCLS experiment (including liquid helium or large quantities of liquid nitrogen used for refrigeration) must be purchased through SLAC's online chemical ordering system for delivery to SLAC in time for the experiment. Users are expected to pay for these chemicals through their user financial accounts. Please communicate with the appropriate instrument area manager at least 4 weeks prior to your scheduled beam time to order specialty gases, chemicals or other supplies.


We understand that equipment may need to be made or modified for experiments at LCLS. Generally, straightforward requests for work requiring less than two man-hours may be done by LCLS staff at no charge to the user. However, more complicated requests that require labor from SLAC shops will be charged to users through their user financial accounts. Please communicate with the appropriate instrument scientists as early as possible for help to scope and coordinate this type of work.

User Shipments

Page Contents

Shipping Equipment and Materials to LCLS

The following contact information should be included on all shipments to LCLS:

Spokesperson's Name and c/o Instrument Scientist
LCLS/SLAC, Bldg. 950
2575 Sand Hill Rd.
Menlo Park, CA 94025

If a contact number is required on carrier documentation, please use SLAC Shipping Sandra Pickrom (650-926-4247) or Theresa Wong (650-926-4077).

Due to limited storage space, we request that your equipment and/or materials arrive no more than one week before needed for setup. SLAC does not assume any liability for your equipment or materials. COD packages cannot be accepted.

  • Hazardous Materials Shipments

    1. Users should consult with a materials specialist at their home institution for instructions regarding the proper shipping and handling of hazardous materials. All hazardous materials, including radioactive materials, shipped to or from LCLS must be packaged and handled according to U.S. Department of Transportation regulations, or IATA dangerous good regulations (as applicable) if being shipped from overseas. Shipments that fail to comply with these federally mandated regulations will be returned to the user's home institution unopened.

      For more Information and forms regarding transportation and handling of radioactive samples at SLAC, contact Ian Evans, LCLS Safety Officer.

    2. Requestor must supply an MSDS for all hazardous materials in shipment.

  • Getting Items through U.S. Customs

    International shipments can involve duty or taxes on items shipped. For international shipments, users are encouraged to work with TIGERS (USA) GLOBAL LOGISTICS and to prepare a carnet for their shipment (retain a copy of the carnet).

Attn: Jay Allison []
Phone (BUSN): 650/873-2842/7230
Fax: 650/583-4350
Website: (downloadable forms)
  • Shipping User Samples/Equipment Outside of the U.S.

    At the end of your experiment, if you plan to ship samples, equipment or other scientific items from SLAC back to your international institution or to another location outside of the U.S., review instructions and complete a Power of Attorney form for the Individual or Group that is responsible for and will receive the shipment. For each item that users will ship to or from SLAC, it is essential that complete and detailed descriptions (including the manufacturer and url for product details when applicable) as well as the actual value of each item be included -- and be consistent -- on all shipping documents. We encourage you to take photographs and append these to your inventory or list of items shipped. Descriptions should include the country of manufacture or origin; item serial number (if it exists); value in your US and international currency); the weight of items shipped and crate identification (if more than one crate is shipped).

    Please retain a copy of the carnet and provide a copy of this or other shipping documents (e.g., shipping manifest, pro-forma invoice, etc.) to the SLAC representative assisting you. NOTE: All international shipments/exports leaving SLAC must be approved by Stanford. DELAYS IN PROVIDING INFORMATION ABOUT YOUR SHIPMENT WILL CAUSE DELAYS.


    For assistance or for more information on user shipments, contact the LCLS Area Manager or Theresa Wong.


Feedback & Publications

LCLS Related Publications

User Feedback Encouraged

Feedback is an important part of the Integrated Safety & Environmental Management System (ISEMS). Users are required to complete an end of run summary after each scheduled experiment. The feedback provided by users will be used to address issues raised by users and to continually improve user resources and support. User feedback will be shared with LCLS management and scientific advisory committees. Users are also encouraged to contact the Users' Organization Executive Committee to share their suggestions or concerns. Complete end of run summary through the user portal.

Acknowledge and Inform us of Your Research Results and Publications

By contacting us when exciting results are about to be published, we can work with users and the SLAC Office of Communication to develop the story and to communicate user research findings to a much broader audience. As the first facility of its kind, it is extremely important that LCLS users share the results of their experiments through scientific presentations and papers. Users are required to inform the User Research Administration of each publication or thesis based, fully or partially, on work at LCLS. These publications are extremely important in presenting scientific achievements and productive use of the valuable resource of beam time.

Additionally, as members of the SLAC community, LCLS scientists have the responsibility for ensuring that any manuscript based on research conducted at SLAC which has been (or will be) submitted for publication outside of SLAC is also published as a SLAC Publication. Several help pages are available through InfoMedia to help authors meet reporting requirements.

All publications, and student theses, related to work fully or partially undertaken at LCLS should contain the following acknowledgement:

"Portions of this research were carried out at the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory. LCLS is an Office of Science User Facility operated for the U.S. Department of Energy Office of Science by Stanford University."

LCLS Newsletters

LCLS Policies

SLAC SLAC National Accelerator Laboratory, Menlo Park, CA
Operated for the U.S. Department of Energy Office of Science by Stanford University