Rad Bio Section 1

What does ALARA Stand for?

• As Low As Reliably Achievable

• As Low as You can go

• As Low as reasonably achievable

• as low as reasonably able

What is the largest source of natural environmental radiation?

• Cosmic Rays

• Radon

• Uranium

• Airport scanners

The Atomic mass number is representative of what?

• number of protons in the nucleus

• # of protons and neutrons in the nucleus

• Neutrons

• electrons + protons

The Atomic number is representative of what?

• protons + neutrons

• protons

• electrons and protons

• neutrons

An element that has the same # of protons but have a different # of neutrons is called a (an)

• isotone

• isotope

• isobar

• isomer

Name two types of ionizing particulate radiation.

• gamma and beta

• alpha and beta

• x-ray and gamma

• x-ray and beta

Name two types of ionizing electromagnetic radiation?

• alpha and beta

• gamma and beta

• x-ray and gamma

• alpha and gamma

What procedure that we discussed in class has the longest BERT ?

• chest xray

• PET CT

• Bone Scan

• Panorex Dental x-ray

An isotone refers to atoms that have the .................

• same number of protons

• same number of neutrons

• same Atomic mass

• same configuration

Medical imaging accounts for approximately what annual dose to the public each year?

• 3.0 mGy

• 2.0 mSv

• 2.5 mGy

• 3.2 mSv