Training requirements for working with or having access to Radioactive Materials (RAM)
or x-ray producing equipment on the OSU campus are determined by federal, state, and
license requirements. As a RAM and/or x-ray worker, you will have to take both general
training provided by the Radiation Safety Office (RSO) and specific training (Lab
Specific Training, or LST, for RAM users, and Machine Specific Training, or MST, for
x-ray users) provided by your Principal Investigator (PI).
The general training provided by the RSO will be conducted online and will fall into
one of three categories:
RAM – Sealed Sources Training:
Sealed sources of RAM are those that encase the RAM in a capsule that is designed
to prevent leakage or escape of the RAM. These sources do not pose any threat of spreading
contamination under normal use conditions and are generally found in physical sciences
laboratories. Anyone who will use sealed sources on the OSU-Stillwater campus must
successfully complete this training module and test every two years. Common sealed
sources include: Am-241, Cs-137, and Sr-90.
RAM – Unsealed Sources Training:
Unsealed sources of RAM are those that do not meet the criteria of being a sealed
source. These sources have the potential of spilling and spreading contamination under
normal use conditions and are generally found in life sciences laboratories. Anyone
who will use unsealed sources on the OSU-Stillwater campus must successfully complete
this training module and test every two years. Common unsealed sources include: C-14,
H-3, I-125, P-32, and S-35.
Anyone who will operate an x-ray producing machine on the OSU-Stillwater or OSU-Tulsa
campus must successfully complete this training module and test every year.
For LST or MST, the PI in charge of the RAM lab or x-ray machine is responsible for
creating and providing this training to all users. The purpose of this training is
to define the specific procedures and safety precautions that will pertain to RAM
or x-ray use in a specific lab. This training must be approved by the RSO and adequately
documented. This is recurring training that must be taken every year.
In some cases, a PI may want to train people who may work in the RAM or x-ray lab
but will not be authorized to use or not have access to use RAM or x-ray equipment
in order to ensure they are aware of what is in their work area. These people, referred
to as “non-users,” will need to sign a statement indicating that they understand they
are not authorized to use the RAM and/or x-ray equipment present in their lab area
until they have their PI’s permission and all required training. They will also have
to take any of the online training their PI requests them to complete. The non-user
statement will need to be completed only once, but if online training requirements
are given this will need to be repeated at annual (X-ray Training) or bi-annual (Unsealed
or Sealed Sources Training) intervals.
Portable nuclear gauge users will be required to complete RAM-Sealed Sources Training
and an RSO approved Portable Nuclear Gauge Safety Training course such as that offered
Depending on the formal review of a PI’s SOP, additional training may be required
by the RSO.
OSU Police, Environmental Health and Safety, and University Mail Services personnel
may be required to complete some level of radiation safety training dependent upon
job duties. Contact the RSO for more information at 405.744.7890.