We remain committed to the safety of our staff and users, and have established COVID-19 protocols to ensure on-site users can safely perform their experiments.

Before coming on-site, please ensure:

  1. You are listed as a team member on an active project in the User Portal.
  2. Beamline staff have confirmed the time and duration of your on-site visit.
  3. You have completed all required facility access training, including the new COVID Orientation via the CLS Training Site.
  4. Complete the Saskatchewan Health Authority self-assessment within 48 hours before coming on-site.

To enter and exit the CLS, use the main lobby. You will need to check in with the reception desk and a completion of a health attestation may be required.

Recently, the University of Saskatchewan (USask) announced new COVID-19 vaccination measures. The Canadian Light Source (CLS) is required to comply with these USask Health and Safety protocols, and supports these efforts as they align with our commitment to provide a safe working environment for our staff, users, contractors, and their families. Therefore, beginning September 1, 2021, all CLS users will be required to show proof of vaccination before they are granted access to the facility. Individuals who are unable or unwilling to be vaccinated will be required to provide regular negative COVID-19 test results.

All users planning to come on-site must bring one of the following:

  1. Written verification of vaccination status, visually presented to staff at reception upon arrival (not required on subsequent trips). Acceptable forms of verification include appointment cards, printouts from your eHealth account, or any other verification issued by your province.
    • Written proof of complete vaccination with a vaccine approved by Health Canada (eg. PfizerBioNTech, Moderna, AstraZeneca, or Johnson & Johnson) administered at least 14 days prior to coming on-site.
  2. Proof of a negative COVID-19 test taken within 72 hours prior to arriving on-site. This will need to be visually presented to staff at reception upon arrival, and is valid for seven (7) days from when the test was performed. Rapid antigen testing can also be arranged on-site – please contact the User Services Office to make an appointment ahead of time.

NOTE: These documents will be visually verified by staff at CLS reception during business hours only. No personal or medical information contained therein will be recorded or preserved at the CLS.

While on-site at the CLS:

  • Masks must be worn at all times, and are available at Reception.
  • Restrict your movement through the facility as much as possible.
    • Report directly to your beamline, and do not visit other beamlines.
    • Ask beamline staff for directions to the nearest washroom and lunchroom facilities.
    • Obey all signage related to access restrictions to certain areas of the CLS.
  • Sanitize your equipment and work area both before and after your beamtime. Cleaning supplies are provided at every beamline.
  • Do not leave personal items behind, and sign off of your permit in the User Portal at the end of your experiment.

The following precautions are anticipated to be reduced in a phased approach as the risk of transmission is reduced in our area.


Current Requirements

September 1, 2021

Number of users per beamline,

Provided physical distancing can be maintained


From within Saskatchewan


From within Canada

Sample Preparation

Sample Preparation should be completed off-site, if possible. Contact beamline staff if you will need the user of CLS laboratory facilities.

No restrictions to sample preparation on-site

NOTE: As with all COVID-19 pandemic responses, these restrictions are subject to change if the risk of transmission increases in our area. Please check this page for the most up-to-date information for users coming on-site, and find more details in our User COVID Protocol Document.