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Rad review for fin 1
reviewing for final in first semester of Casey's class uafs
| Question | Answer |
|---|---|
| What did William Conrad Roentgen Die from? | Colon Cancer |
| What honors did Roentgen 's discovery earn him? | 1901 Nobel prize in Physics |
| What is Evangelista Torricelli given credit for? | Borometer |
| special protection should be taken to prevent excessive exposure to ? | Ionizing radiation |
| This is a form of non-ionizing radiation? | sonography |
| An individual who specializes in using x rays to create images of the body is known as a ? | Radiographer |
| a discipline that visualizes sectional anatomy by the recording of a predetermined plane in the body is ? | Computed tomography |
| An individual who specializes in carrying out treatments designed to correct or improve the function of a particular body part or system is known as a ? | Therapist |
| What are the two categories of sources of radiation? | 1. Man-made 2. Natural/Background |
| What are three examples of man made radiation? | 1. Nuclear energy 2. medical or dental x-rays 3. consumer products |
| _____ has carbon in it. | Any organic material |
| ages considered child bearing years | 12-60 |
| who should you shield? | The patient yourself anyone in room |
| any x-ray emitted from window | Primary beam |
| What are the three principle of alara | 1. time 2. distance 3. shielding |
| how far away can an x ray travel? | less than 6 feet |
| tube leakage should not exceed _____ MR/hour at a distance of 1 meter from the source? | 100 |
| The worse place to be to absorb scatter radiation is? | Right next to the patient |
| NCRP says that lead aprons must be at least a minimum of ________ of lead equivalency. | .5 milameters of lead equivalency. |
| Gloves and drapes and bucky slot cover need to be a minimum of ________. | .25 mm Pb |
| A thyroid shield needs to be a minimum of ____. | .5 mm PB |
| Anywhere primary beam points you have to have ________ barriers. | Primary barriers |
| Primary barriers have to be _______ inches of Pb. | 1/16 inches and 7 feet tall |
| Secondary barriers protects against scatter and leakage and has to be a minimum of ______Inches of Pb. | 1/32 inches |
| The two types of barriers are _______ and _______. | Primary and secondary |
| This is used to measure the exposure in air. | Roentgen |
| 1 rad does not equal one _______. | gray |
| 100 rad = _______. | 1 gray |
| 1000 rem = _________. | 1 seivert |
| REM Radiation Equivalent Man | What the techs exposure is measured in. |
| The quality factor of x ray | 1 |
| Curie | measure radioactivity |
| Radiation absorbed dose. Who is absorbing it? | The patient |
| Rem = Rad times______________. | Quality factor |
| What are three types of monitoring devises? | 1. Film badge 2. OSL 3. TLD |
| pocket dosimeter | looks like pocket light provides an instant reading (are very inaccurate) |
| Film badge | the only permanent record. |
| OSL | optical laser uses aluminum oxide |
| TLD | Thermo luminescence dosimetry uses heat to return crystal to natural state |
| 1 curie = 1 _____________. | Becquerel |
| Annual dose limit for occupational worker | 50 msv or 5 rem |
| Cumulative lifetime dose | 1 rem x age or 10 msv x age |
| eyelids | 150 msv or 15 rem |
| Skin hands feet | 500 msv or 50 rem |
| Public annual dose | 1 msv or .1 rem |
| publics monthly dose | .5 msv |
| Natural /background radiation can be occur spontaniously and can be affected by __________________. | human activity |
| constitutes the greatest exposures of human made radiation | Medical and dental x rays |
| three things must be present for x ray production | 1. source of electrons 2. force to move them rapidly 3. something to stop this movement rapidly. |
| The negative terminal | Cathode |
| The positive terminal | Anode |