Research: Oxygen-15 gas radiation safety quiz

Each participant can complete this quiz while completing the online Radiation Safety Oxygen 15 Gas elearning module and while reading the Gaseous 0-15 staff SOP.

The completed quiz will be reviewed by the Lawson Radiation Safety Officer to confirm that all 0-15 gas radiation safety pre-requisites have been met. If you have any questions please contact Ben.Reyes@lawsonresearch.com.

Personal information

Section 1: Radiation safety: Oxygen-15 gas questions

Only staff with current radiation safety training certificates can work with gaseous Oxygen-15.
The pre-annihilation energy of an Oxygen-15 positron is the same as for all positron-emitting isotopes.
The post-annihilation energy resulting from an Oxygen-15 emitted positron colliding with surrounding electrons is the same for all positron emitting isotopes.
The half-life of Oxgen-15 is about 2 minutes.
Unexpected Oxygen-15 gas leaks can result in unnecessary lung radiation exposure to staff.

Section 2: Gaseous 0-15 staff SOP questions

A survey meter is required in the PET/MRI control room pre O-15 delivery to confirm that the PET/MRI has changed from positive to negative room pressure after pressing the exhaust fan’s “Manual Start” red button.
Venting the exhaust tank in the PET/MRI equipment room pre O-15 delivery will allow for an empty tank to capture all exhaled O-15 gas during its administration in the PET/MRI suite.
Recording the PAD reading post O-15 gas administration will allow for recording of the level of residual O-15 radiation in the PET/MRI suite that did not get captured in the PET/MRI equipment room exhaust tank.
All suspected accidental staff inhalation of O-15 gas equal to or greater than 50 uSv is required to be reported to the CNSC.
The use of a survey meter is enough to establish the amount of radiation lung exposure received by staff accidentally during an unusual occurrence.