Anatomy & Spinal Levels
The bifurcation of the trachea is at this spinal level
What is spinal level T4/5, AKA The Carina
Which has deeper 100% depth dose, 12MeV or 10MV
10MV, Photons have deeper depth dose than electrons
What is the dose allowable to radiation workers per year
5rem
TD 5/5 for the bladder
6500cGy
describe excitation of an atom
absorption of energy by an electron which causes it to vibrate or move up a level, but does not leave its atom
The Cisterna Chyli is located at this spinal level
What is level L2
What does a medical linear accelerator accelerate
electrons
What must a pregnant radiation worker do to legally declare her pregnancy
The worker must in writing give to the RSO a statement of pregnancy including the estimated date of conception and sign the document
The TD 5/5 for brain
4500cGy
The photoelectric effect is what
Absorption of a photon totally by a target atom inner shell electron, causing the electron to be ionized
The vertebrae levels for the Larynx
What are levels C3-C6
The Sievert (Sv) is the standard international (SI) unit for the determination of what
What is dose equivalence
The Three Principles of Radiation Protection are what?
What are time, distance and shielding
TD 5/5 for the femoral head
5200cGy
The critical target in a cell
DNA
The jugulodigastric is located near this angle
The source of accelerating power in a medical linear accelerator
What is the Klystron or magnetron
The state must be informed if the daily dose differs by this % from the intended daily dose
50%
TD 5/5 for the kidney
2300cGy
The four phases of mitosis are
what is the PMAT. Prophase, metaphase, anaphase and telophase
The false vocal cord is part of this Laryngeal sub level
What is the supraglottic level
Flatness and symmetry are concepts used to describe what
Xray and electron beam intensity profiles
What is the permissible yearly dose to the general population
What is 1mSv or 0.1rem, as per NCRP 174
TD 5/5 for the parotid
3200cGy
The relative biological effect or RBE is a ratio of what
The ratio of the standard dose to the test dose required for equal biological effect