IRRSP - RADIOGRAPHY STATE CARD EXAM ANSWERED
CORRECTRY
How can exposure to harmful radiation be minimized? - Correct Answer Through proper
planning, good procedures and practices.
What is the atomic number? - Correct Answer the number of protons found in the nucleus of
an atom
What is atomic weight? - Correct Answer the total number of protons and neutrons in the
nucleus of an atom
True or false: a stable isotope is radioactive? - Correct Answer False, a stable isotope is not
radioactive.
What are the two types of radiation? - Correct Answer particulate and electromagnetic
What does particulate radiation consist of? - Correct Answer Particles that have a mass and
energy (ex: alpha and beta particles)
What does electromagnetic radiation have? - Correct Answer No mass or charge and referred
to as photons
examples of electromagnetic radiation? - Correct Answer X-rays, unltraviolet and Infrared light,
microwaves, radio waves
What makes X-rays and gamma rays different from other electromagnetic radiation? - Correct
Answer Their energy level is high enough to penetrate matter
, As wavelengths of xray and gamma ray increase, does the penetrating ability increase or
decrease? - Correct Answer Decrease.
How are gamma rays produced? - Correct Answer When an unstable atom converts to a stable
atom
An elements atomic weight is also known as the: - Correct Answer A number of
What happens as a radioactive isotope (radioisotope) decays? - Correct Answer Atom changes
from unstable to stable state - resulting in emission of radiation
What is the half life of iridium 192? - Correct Answer 74 days
What is a camera? - Correct Answer An exposure device
What does a Type 1 exposure device do? - Correct Answer Exposes the radioisotope outside of
the shielded container by use of guide tube.
What does a type 2 exposure device do? - Correct Answer Exposes source by shutter
mechanism (rotates source to unshielded position within the device)
What is the half life of colbalt 60? - Correct Answer 5.3 years
What is the thickness range of Ir-192? - Correct Answer .5 to 3"
What is the thickness range of Colbalt-60? - Correct Answer 1 to 9"
What does activity mean? - Correct Answer The strength of the radioactive source.
CORRECTRY
How can exposure to harmful radiation be minimized? - Correct Answer Through proper
planning, good procedures and practices.
What is the atomic number? - Correct Answer the number of protons found in the nucleus of
an atom
What is atomic weight? - Correct Answer the total number of protons and neutrons in the
nucleus of an atom
True or false: a stable isotope is radioactive? - Correct Answer False, a stable isotope is not
radioactive.
What are the two types of radiation? - Correct Answer particulate and electromagnetic
What does particulate radiation consist of? - Correct Answer Particles that have a mass and
energy (ex: alpha and beta particles)
What does electromagnetic radiation have? - Correct Answer No mass or charge and referred
to as photons
examples of electromagnetic radiation? - Correct Answer X-rays, unltraviolet and Infrared light,
microwaves, radio waves
What makes X-rays and gamma rays different from other electromagnetic radiation? - Correct
Answer Their energy level is high enough to penetrate matter
, As wavelengths of xray and gamma ray increase, does the penetrating ability increase or
decrease? - Correct Answer Decrease.
How are gamma rays produced? - Correct Answer When an unstable atom converts to a stable
atom
An elements atomic weight is also known as the: - Correct Answer A number of
What happens as a radioactive isotope (radioisotope) decays? - Correct Answer Atom changes
from unstable to stable state - resulting in emission of radiation
What is the half life of iridium 192? - Correct Answer 74 days
What is a camera? - Correct Answer An exposure device
What does a Type 1 exposure device do? - Correct Answer Exposes the radioisotope outside of
the shielded container by use of guide tube.
What does a type 2 exposure device do? - Correct Answer Exposes source by shutter
mechanism (rotates source to unshielded position within the device)
What is the half life of colbalt 60? - Correct Answer 5.3 years
What is the thickness range of Ir-192? - Correct Answer .5 to 3"
What is the thickness range of Colbalt-60? - Correct Answer 1 to 9"
What does activity mean? - Correct Answer The strength of the radioactive source.
