Learning Goal
Medical Applications of Radioactivity: Diagnostic Imaging and Radiation
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
"nuclear radiation depends on the nuclide and not on the chemical compound it is in, so that a radioactive nuclide can be put into a compound designed for specific purposes. When that is done, the compound is said to be tagged. A tagged compound used for medical purposes is called a radiopharmaceutical."
"When the emitted positron β+ encounters an electron, mutual annihilation occurs, producing two γ rays. Those γ rays have identical 0.511 MeV energies... and they move directly away from each other, allowing detectors to determine their point of origin accurately."
"The ratio of abnormal cells killed to normal cells killed is called the therapeutic ratio, and all radiotherapy techniques are designed to enhance that ratio."
"we define a radiation dose unit called the rad. It 1/100 of a joule of ionizing energy deposited per kilogram of tissue, which is 1 rad = 0.01 J/kg."
"the roentgen equivalent man is defined to be the dose in rads multiplied by the relative biological effectiveness. rem = rad × RBE"
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"nuclear radiation depends on the nuclide and not on the chemical compound it is in, so that a radioactive nuclide can be put into a compound designed for specific purposes. When that is done, the compound is said to be tagged. A tagged compound used for medical purposes is called a radiopharmaceutical."
"When the emitted positron β+ encounters an electron, mutual annihilation occurs, producing two γ rays. Those γ rays have identical 0.511 MeV energies... and they move directly away from each other, allowing detectors to determine their point of origin accurately."
"The ratio of abnormal cells killed to normal cells killed is called the therapeutic ratio, and all radiotherapy techniques are designed to enhance that ratio."
"we define a radiation dose unit called the rad. It 1/100 of a joule of ionizing energy deposited per kilogram of tissue, which is 1 rad = 0.01 J/kg."
"the roentgen equivalent man is defined to be the dose in rads multiplied by the relative biological effectiveness. rem = rad × RBE"
What you'll learn
- Explain why nuclear radiation is useful for medical imaging and what a tagged radiopharmaceutical is
- Describe how the gamma (Anger) camera, SPECT, and PET produce images
- Explain how ionizing radiation damages DNA and how radiotherapy uses this to treat cancer
- Define the rad, RBE, and rem, and calculate radiation dose for a specified region of the body
Slides
Step through the lesson, or watch it as a narrated video
Slides
In development
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