Term
which part of the cell acts as the "power plant" and supplies energy to the cell |
|
Definition
|
|
Term
which part of the cell contains digestive enzymesthat break down large molecules |
|
Definition
|
|
Term
which part of the cell directs all celluar activity and contains heredity factors |
|
Definition
|
|
Term
which part of the cell is least affected by large dose of radiation |
|
Definition
|
|
Term
according to bergonie and tribondeau the radiosensitivity of tissue is proportional to its reproductive capacity |
|
Definition
|
|
Term
what tends to increase a cells radiosensitivity |
|
Definition
high division and high metabolic rate |
|
|
Term
a cell or tissue is considered to be more radiosensitive if it |
|
Definition
|
|
Term
what is not a factor of radiosensitivity |
|
Definition
|
|
Term
what is the most sensitive to radation |
|
Definition
|
|
Term
what is most radioresistant |
|
Definition
|
|
Term
which free radicle product is chemical poison to the cell |
|
Definition
|
|
Term
an effect whose probability of occuring increases as the dose increases without threshold is called _______ effect |
|
Definition
|
|
Term
the ld 50/30 for humans is estimated to be between |
|
Definition
|
|
Term
what is the ld 50/30 concept |
|
Definition
50% of a large exposed group will die within 30 days without medical treatment |
|
|
Term
cancer is an example of a ________ effect |
|
Definition
|
|
Term
what is not a characteristic effect of hematopoieticsyndrome |
|
Definition
|
|
Term
the C N S synndrome is produced by acute whole body exposures above _______ rem |
|
Definition
|
|
Term
doses as low as _______ rad have been shown to cause development changes during two to six week period of apregancy |
|
Definition
|
|
Term
effects which occur in the exposed indivual are called _____ effects |
|
Definition
|
|
Term
what is not a somatic effect |
|
Definition
|
|
Term
the relationship between populations of nuetrons and protons and the stability of that nucleus is best described as |
|
Definition
the higher z number of the atom the more neutrons are required thus a higher value for the neutron/proton ration in a stable nuclide |
|
|
Term
gamma radiation is defined as |
|
Definition
electromagnetic energy emmitted from the nucleus with no mass and no shape |
|
|
Term
which of the following equations is standard notation denotes an alpha decay including the parent daughter and other products |
|
Definition
|
|
Term
most fission products are unstable because |
|
Definition
|
|
Term
what term describes the activity of one gram of radioactive substance |
|
Definition
|
|
Term
the quanity exposure is defined as |
|
Definition
the ionization produced by x and gamma radiation in air |
|
|
Term
minimum photon energy required for pair production interaction to occur |
|
Definition
|
|
Term
what is a direct result of neutron capture |
|
Definition
|
|
Term
what type of neutron scattering leads to the emission of gamma photon |
|
Definition
|
|
Term
what is the most effective moderator for fast neutrons |
|
Definition
|
|
Term
a quality factor relates _____ to______ |
|
Definition
absorbed dose , dose equivalent |
|
|
Term
the term specific ionization refers to the |
|
Definition
number of ion pairs formed per unit path length |
|
|
Term
what is a mechanismof energy transfer for alpha particles |
|
Definition
|
|
Term
what mechanism of energy transfer for beta particles does not work |
|
Definition
|
|
Term
Ionization of an electrically neutral atom results in |
|
Definition
negative electron and a positive atom |
|
|