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abbreviation for maximum perissible dose
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cellular damage & death occcurs from radiation of the ----of a cell
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radiation pro
radiation protection
| Question | Answer |
|---|---|
| abbreviation for maximum perissible dose | MPD |
| cellular damage & death occcurs from radiation of the ----of a cell | DNA |
| Nuclear regulatory commission this agency has the power to enforce rad. protection standard. | NRC |
| formula for equivalent dose | Eqd=ABD Dose x rad.w1 |
| amount of radiation to cuse twice the amount of response (mutation) | Doubling Dose |
| What is an RSO | Radiation Safety Officer |
| severe radiation damage to DNA can include---aberrration & ---damage | chromosome & ctyogenic |
| thickness of material that will attenuate 50% of x-ray beam. | half valve layer |
| what is an OSL & its properties most cost effective dosimeter | Iptically stimulated luminescence,Most cost effective dosimeter |
| what is reproducibility & its limit? | variation in x-ray exposure not to exceed 5% |
| forumla for relative risk | relative risk=observe cases over expected cases |
| ----is the most common interaction of x-ray with human body? | radiolysis |
| Annual MPD for a Radiation tech. | 5rem |
| what is linearity & the acceptable varience. | variation from one mA station to another & 10max |
| process that deposits energy into the material radiated | absorption |
| List 3 types of weariable radiation protection devices? | glove,apron,thyroid shields |
| T/F Radiation in-utero increases the risk of child leukemia by 50% | true |
| what is a point source of radiation | tube-primary beam/leakage radiationpatient-scatter |
| This organization is considered the internation authority on radiation safety | ICRP |
| What is TVL? | tenth valve layer |
| type of area moniter used to detect alpha & beta particles? | proportional counter |
| the ability to do work is ? | energy |
| this agency will conduct on site inspection of x-ray & mammography equipment | FDA |
| Who invented fluoro & when? | Thomas Edison-1896 |
| what are the 4 stages after Rad.exposure | prodromal,latent,manifest,death/recovery |
| name the 5 types of DNA damage from radiation | main chain scission-one railmain chain scission-two railcross linkingrung breakagechange or base loss-point mutation |
| alters the quality of the x-ray beam | kVp |
| process that prevents photon from reaching the target | attenuation |
| a point at which a response 1st occurs is called | threshold |
| forumala for exposure | mA x s |
| what is the first stage of radiation sickness called | prodromal stage |
| ionization in the air | roentgen(R) |
| what is a PBL & what is the limit of variation? | positive beam limitation-2% |
| In a sine wave frequency & wavelength are--- porportional | inversely |
| the indirect effect is caused by the Radiation of --- molecules | water |
| what is the equation for the maximum # of e- in a shell | 2n z |
| an atom with diferent # of neutrons & same # of protons is? | isotope |
| of the 3 cardinal rules which one is most effective | distance |
| groups of element in the periodic table represent. | elements with the same # of outer shell e- |
| a type of ARS which occurs at 1000 rads is | GI syndrome |
| hardens the x-ray beam | filtration |
| easily penetrated by x-ray | radiolucent |
| this organization used to be called the Atomic Regulatory commission | NRC |
| Type of radiation effect on a molecule resulting in lower viscosity | main chain scission |
| type of radiation effect on a molecule resulting in increased viscosity | chain linking |
| radiation induced chromosome damage in termed the | cytogenetic effect |
| formula for cmulative life time MPD | 5(n-18) or age x 1rem |
| has mass & takes up space | matter |
| a very conservation risk model concerning radiation exposure | ALARA |
| what are the 3 effects that occur from DNA irradiation? | cell deathgenetic damagemalignant disease |
| late somatic effect resulting in callused discolored & weathed looking skin. | radiodermatitis |
| describe protein synthesis in the cell DNA in order starting with DNA | DNA--transcript--mRNA--transfer--& RNA--translate--protein |
| what is MMD? | mean marrow dose |
| what dose response relationship does cataracts formation have? | non-linear threshold |
| ---is the result of 300-400 rad.& results in the death of 50% at the population in 60 days? | LD50/60 |
| Name for electromagnetic energy | Radiation |
| what is the stage of apparent well-ness during rad.sickness called? | latent stage |
| most radiosensity cell in the human body? | lymphocytes |
| x-ray interaction when an outer shell e- is sent out of orbit with some loss of energy? | compton effect |
| one of the 4 contributing factors in somatic or genetic damage is the ---of the area exposed | size |
| what is cytogenetics? | study of genetics & particulary chromosomes |
| a somatic effect which has a random chance of occurance after exposure is called? | stochastic |
| formula for oxygen enhancement ratio | OER=dose without 02(02)over dose with 02(02) |
| the --target/--hit theory is best described aws the response of simple cells to radiation | single & single |
| non-stochastic prevents the effects--- | of non-stochastic effects from occuring |
| stochastic-to limit the risk of----- | stochastic responses to radiation exposure |
| 3 ways that dose is reported? | skin, gonads, marrow |
| name 5 dosimeters | OSL,TLD,PIC,cutie pie,film badge |
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