Radiation Basics
This type of radiation consists of high-speed electrons emitted from the nucleus.
What is beta radiation?
This radiation hazard is considered an internal hazard only and is commonly found in CANDU reactors.
What is tritium?
The CNSC annual whole-body dose limit for a Nuclear Energy Worker.
What is 5 rem (50 mSv)?
This instrument is used to measure neutron radiation and includes a dose integrator.
What is the Snoopy (neutron survey meter)?
The zone in which radioactive systems are located and contamination is expected.
What is Zone 3?
The unit used to measure radiation activity in the SI system.
What is the Becquerel (Bq)?
The radiation hazard that can be detected by a “paintbrush” technique using a contamination meter.
What is surface contamination?
The administrative dose limit for Bruce Power employees per calendar year.
What is 2 rem (20 mSv)?
The four components of a pre-operational instrument check (PCBS).
What are Physical, Calibration, Battery, and Source checks?
The minimum count rate that defines a Discrete Radioactive Particle (DRP).
What is 50,000 cpm?
This term describes the time it takes for a radionuclide to reduce to half its original activity due to both biological and radioactive decay.
What is effective half-life?
This radioactive gas is a fission product and can form a cloud hazard.
What is a noble gas (e.g., Kr-88 or Xe-133)?
The acronym ALARA stands for this.
What is As Low As Reasonably Achievable?
The survey technique used to locate the highest radiation reading in an area.
What is the cross technique?
The first action to take when a Fixed Area Gamma Monitor (FAGM) alarms.
What is stop work and exit the area?
The critical organ for tritium exposure.
What is the whole body?
The hazard level that requires a Protection Assistant and enhanced PPE in a CCCA.
What is a Hot Particle Area (HPA)?
This type of dosimeter provides real-time dose and dose rate information.
What is an Electronic Personal Dosimeter (EPD)?
This tritium monitor uses dual ion chambers and compensates for gamma radiation.
What is the Scintrex 209?
The form used to report a personal contamination event.
What is a RHIS-PCE entry?
The four main types of ionizing radiation.
What are alpha, beta, gamma, and neutron?
The most significant exposure pathway for airborne radioactive material.
What is inhalation?
This dosimeter uses lithium fluoride crystals and is read monthly.
What is a Thermoluminescent Dosimeter (TLD)?
This type of survey is performed when abnormal conditions are suspected.
What is a non-routine survey?
The protective ensemble required for high tritium areas (>100 MPC(a)).
What is a plastic suit ensemble?