Homework 2 Flashcards
the historical equivalent of 10 Gy is
a. 10 rads
b. 10,000 rads
c. 1,000 rads
d. 100 rads
c. 1,000 rads
the SI unit for absorbed dose, Gray, is equivalent to
a. 0.01 erg/gram
b. 0.011 Joule/gram
c. 1 erg/gram
d. 1 Joule/Kilogram
d. 1 Joule/Kilogram
KERMA is an acronym for what?
kineic energy released to matter
absorbed dose is enegy _____ matter and KERMA is energy ______ matter.
a. created by, absorbed by
b. absorbed by, released to
c. treansferred to, released by
d. released by, created by
b. absorbed by, released to
absorbed dose measurement are restricted to
a. energies over 3 MeV
b. measurement in air
c. photons only
d. none of the above
d. none of the above
which of the following is a measure of the biological effects of radiation absorption?
a. exposure
b. HVL
c. charge collected
d. abosrbed dose
d. abosrbed dose
what is the primary function of the build up cap for an ionization chamber?
a. to prevent electrical shock from the ionization chamber
b. to filter out low energy photons
c. to filter out low energy electrons
d. to provide electron equilbrium
d. to provide electron equilbrium
where is the max value of dose for a phton beam irradiating a medium?
a. at the point of electron equilibrium
b. at the surface
c. at the point KERMA equals dose
d. none of the above
a. at the point of electron equilibrium
which of the following is a measurement of energy absorbed?
a. quality
b. exposure
c. charge
d. dose
d. dose
the SI unit for KERMA is
a. joule
b. erg
c. gray
d. rad
c. gray
when the total kinetic energy of the colliding particles or photon is not the same after the collision as it was before the collision, this is called
a. KERMA collision
b. elastic collision
c. inelastic collision
d. radiative collision
c. inelastic collision
when a photon beam enters the surface of a material, which has the greatest value, KERMA or absorbed dose?
KERMA
