Advanced Photon Source

An Office of Science National User Facility

Experiment Hazard Class 8.1 – Radioactive Materials


This hazard classification applies to all experiments involving radioactive materials as samples. The requirements of this hazard class also apply to sealed radioactive sources that are used as a sample (i.e. a target for x-ray radiation). Other hazard classifications and their associated hazard controls may also apply to experiments in this hazard class. The current requirements can be found in the APS Policy for Conducting Radioactive Sample Experiments in APS Experiment Enclosures.

Shipping and Movement of Samples at Argonne and the APS

It is very important that the quantities of each isotope and number of samples listed in the ESAF match the samples that are brought to the APS. The shipping papers must also match the quantities listed in the ESAF.Failure to provide accurate sample information can result in delays or not being able to conduct the experiment.If your ESAF was submitted less than seven (7) days in advance of its scheduled start date you may be delayed to allow time for a safety review.

The APS must be notified of shipment of any radioactive materials to the site in advance of the proposed experiment. All shipments of radioactive material to Argonne National Laboratory must go through an acquisition process and be approved by the ANL-Radiation Safety Officer (ANL-RSO) before authorization to ship will be given.This process can take several business days.Please include in your ESAF the following to expedite this process:

  1. The contact information for the person at your institution who will be responsible for shipping your radioactive samples to ANL/APS.A name, email address, shipping address and phone number for this person is needed.
  2. Please make sure all sample information is complete and correct on the ESAF.If this information changes before shipment a new acquisition plan must be submitted for approval.

All radioactive materials must arrive through Argonne Receiving in Building 46 and the Argonne Special Materials Group. This includes radioactive samples/materials that are not regulated by the US Department of Transportation. Please contact Wendy VanWingeren (630-252-0500, or Bruce Glagola (630-252-9797, for details on completing the necessary procedures for shipping radioactive materials to or from Argonne.The Argonne Materials, Controls, and Accountability (MC&A) will provide the proper shipping address to your home institution.It is recommended for shipping to Argonne that a commercial carrier (e.g., FedEx, etc.) is used. All radioactive samples will be surveyed by RSO Health Physics before they are accepted at the APS and allowed to be used for the experiment. All radioactive samples will be returned to the home institution after completion of the experiment. It is the User's responsibility to complete the necessary form and arrange for shipment with the APS.

NOTE: Argonne will not accept any Saturday or Sunday deliveries of radioactive materials.

The proposed experiment will require review of sample handling procedures and containment by the APS Radioactive Sample Safety Committee (APS RSSC) before the experiment can be approved by the Beamline. The APS must be notified well in advance of radioactive material arriving at the site to be certain the material can be accepted under DOE 1027-92 accountability rules. Sample size and number of samples may be limited by accountability requirements and risk assessment depending on the isotope(s) in use by this experiment and other APS experimenters at the same time. The APS will generate a standard operating procedure for handling of the sample during the experiment that describes the role of RSO-HP activities for the duration of the experiment (example APS procedure).

Experiment Category

Experiments the Experiment Hazard Class are always categorized as High Risk.

Hazard Control Verification Statements

Engineered Controls – Controls required in the Argonne Radiological Safety Program Description and any agreed upon in the review of the experiment by APS and Beamline Management.

Procedural Controls – APS SOP defining sample control and Health Physics interactions.

Design Reviews and Equipment Inspections – Any experiments involving radioactive materials require review of sample handling procedures and containment methods by the APS and RSO/Health Physics as well as the Beamline. Allow enough time for the review.

The investigator proposing to do experiments with radioactive materials at an experiment hutch must provide the following information:

  1.     Total sample matrix, weight, and dimensions.
  2.     The amount (weight) of each radioactive isotope in the sample.
  3.     A detailed description of the sample containment.
  4.     Any data on integrity of the sample, the sample holder, and containment under the expected experiment conditions (e.g., heating, cooling, pressure, etc.)
  5.     Special training requirements, in reference to handling, accountability, transport, etc. of the samples.
  6.     (The APS requires a minimum of Radioactive Worker 1 (ESH700) training for all experiment participants that will
  7.     handle the contained samples.
  8.     An APS site-specific practical training will be required at the start of the experiment.)
  9.     Exposure readings (mrem/hour, for both soft and hard exposure) from the sample at contact and at 30 cm, with a description of the instruments used to perform the measurements.
  10.     Approximate beam size and flux on sample.
  11.     Beam type (Mono/Pink/White).
  12.     Beam energies if Mono or ID gap if pink/white.
  13.     Energy cutoff if pink beam.
Note: Contact the Beamline if needed to obtain the information for items 7-10.


  • Argonne Radiation Worker I (ESH 700) for work with contained samples. This training can be completed at the APS User Office.
  • One-time Radiation Worker I practical administered by RSO-HP. The contact for this training is Elaine Slavik (630-252-9411, Beamline Staff must make arrangements for this training. 
  • Argonne Radiation Worker II (ESH 702) may be required for certain experiments, dependent on results of the review by the APS RSSC.
  • Signs and Labeling – All signs and postings required for the experiment station, storage safe, and samples will be supplied by RSO Health Physics. Procedures for sample handling must be posted at the experiment station.

Personal Protective Equipment – As determined in the review of the experiment.

Dosimetry and Monitoring – All users involved in the experiment may be required to wear a dosimeter during the experiment. The requirement for a dosimeter will be determined by RSO-HP. RSO-HP is responsible for all monitoring of samples as noted in the sample handling procedure posted on the experiment station.

Experiment Authorization

Unless otherwise noted in the approved experiment safety plan, the PSC Deputy Associate Laboratory Director of Operations delegates the authority to authorize an experiment in this hazard class to any of the persons in the beamline personnel that appear in the list of Beamline Manager personnel authorized to approve experiments and a member of the APS Experiment Review Board.

Hazard Control Verification

The PSC Deputy Associate Laboratory Director of Operations delegates responsibility for verifying that required controls are in place to personnel delegated the authority to perform this task to RSO Health Physics or APS Experiment Review Board, the experiment On-site Spokesperson, and Beamline Management personnel having experiment safety responsibilities.


Argonne Radiological Safety Program Description, January 2017 (Internal link)

LMS-PROC-171: Accountablility and Control of Sealed Radioactive Sources 7/1/2016 (Internal link)

LMS-PROC-109: Control of Radiation-Generating Devices 10/31/2014 (Internal link)

LMS-PROC-143: Radiation Safety Interlock System 8/11/2016

Please contact Bruce Glagola or Nena Moonier if you can not access the internal link

Updated: July 24, 2017