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Physics 1 U2 & HM
| Question | Answer |
|---|---|
| Measure of radiationin air | Roentgen |
| What is used to measure machines | Roengten |
| That exposure of x or gamma radiation such that the accoiated corpuscular emission per 0.001293 grams of air produces what | ions carrying one electrostatic unit of quanitiy of electricity of either signs |
| The amount of energy imparted to matter by ioninzing particles per unity mass of irradiated material at the place of interest | the absorbed dose |
| unit of absorbed dose | RAD |
| measures the amount of radiation absorbed by an object | RAD |
| What does RAD stand for | Radiation Absorbed Dose |
| Used in dosimetry reports | Term REM |
| The unit of dose equivalent of the combination of absorbeddose and x-ray, gamma, beta, or fast neutrons | REM |
| what does REM stand for | Roentgen Equivalent Man |
| 1 REM is the dose of any given type of radiation that produces the same biological effect as how many R of x-rays or gamma radiation | 1 |
| REM = | RAD x RBE |
| Whay does RBE stand for | Relative Biological Effectiveness/ Quality factor |
| Relates the biological effect of various types of radiations to that of x and gamma radiation | RBE |
| What is the RBE/Quality factor of each: X-ray & Gamma ; Beta; Alpha | X-ray and gamma is 1; Beta is 10; Alpha is 20 |
| If the quality factor of x-reys is 1 what would Roentgen, RAD, and REM for diagnostic radiology be | 1 |
| what does the quality fact not effect | Radiation Theraphy and Nuclear Medicine |
| If you had 3 Rads of x-rays; 2 Rads of gamma; 2 Rads of Alpha; 1 Rad of Beta how many REm do you get | 3x1= 3; 2x1= 2; 2x20=40; 1x10= 10 and that equals 55 REMS |
| Explain about one curie | one curie is that quantity of material in which 3.7x10 to the tenth atoms disintegrate every second |
| Measure tha quantity of radioactive material and not the radiation emitted | Curie |
| 1 REM = ____mREM; 0.5 REM= ___mREM ;; 1 RAD =___mRAD; 0.5 RAD=____mRAD | 1000;; 500;; 1000;; 500 |
| What does Coulomb(Air Kerma) = | Roentgen |
| Gray(Gy)= | RAD |
| Sievert(Sv)= | REM |
| Becquerel= | Curie |
| What are the SI units of measurement | Coulomb, Gray, Sievert, and Bequerel |
| What are the traditional units of Measurement | Roentgen, RAD, REM, and Curie |
| HOw to you convert Rad to Gray | Rad divided by 100 = Gray 100rads=1 gray |
| How to you covert Gray to Rad | Gray multipled by 100 = RAD 1gray= 100rads |
| How do you convert REM to Sievert | Rem divided by 100=sievert |
| how do you convert Sievert to Rem | Sievert multiplied by 100= REM |
| Giga- | 1,000,000,000 |
| Mega- | 1,000,000 |
| Kilo- | 1,000 |
| Hecto- | 100 |
| Deka- | 1 |
| Deci- | .1 |
| Centi- | .01 |
| Milli- | .001 |
| Micro- | .000001 |
| Nano- | .000000001 |
| The quanity of matter described by enery equivalence | Mass |
| KIlogram means | Mass |
| What does kilogram mean to the English | Pound |
| The meter is the distance traveled by light in 1/299,792,468 second | LENGTH |
| English words for length | inch; yard |
| based on vibration of cesium atoms | Time |
| Words used for time | second |
| The speed | Velocity |
| A measure of how fast something is moving | Velocity |
| The change of velocity with time | Acceleration |
| How quickly or slowly velocity is changing | Acceleration |
| Force times distance | Work |
| The rate of doing work | Power/Jewels |
| The ability to do work | energy |
| What are three Laws of Newton's Laws of motion | 1/ Inetria 2/force 3/Action/Reaction |
| Explain Inertia | A body will remain at rest or continue to move at constant velocity in a straight line unless acted on by an external force |
| Explain Force | the force acting on an object with acceleration is equal to the mass multiplied bt the acceleration; Push or pull of an object |
| Eplain Action/Reaction | For every action there is an equal and opposite reaction |
| Which of the following is not a base quantity in the SI? | Exposure |
| Which of the following is SI base unit? | Kilogram |
| Which of the following standards of SI measure is correct | the second is based on the vibrations of cesium atoms |
| Water has a mass density of 1g/cm3. its density is also | 10-3kg/m3 |
| SI stands for which of the following | Le Systeme International d'Unites |
| Which of the following is not a system of units | French |
| Which of the following is an SI name for a base unit | Second |
| Which of the folloing is an unit of energy | Joule |
| which of the following is an SI derived unit | Joule |
| The unit of measurement that is the same for all systems of measure is the | Second |
| What unit results when a coulomb is divided by a second | Ampere |
| The radiologic unit millampere second(mAs) is actually | Charge/ Number of Electrons |
| A radiation monitoring report would express a radiologic technologist dose equivalent in which of the following | REM |
| A PA chest radiograph delivers approximately what dose to the patient | 10mRad |
| To produce death, mice must be irradiated to a total dose of approximately | 600 rad |
| The approximate output intensity of a radiologic x-ray tube is | 5mr/mAs |
| 99mTc is the most often used radionuclide in diagnostic nuclear medicine. It is used in quantities of | mCi |
| The reontgen is a unit of measurement that specifies which of the following | Intensity of x-ray |
| Which of the following adequately describes the use of the rad | to measure energy absorbed tissue |
| Which of the following is a classic radiologic unit | Rem |
| If 2 rad is delivered to 2g of soft tissue, 1g of tissue receives | 2rad |
| Absorbed dose can be measured in | Gy |
| Which of the following is not a unit of energy | Rad |
| Which of the following is a unit of radioactivity | Ci |
| Which demonstrates the proper use of the unit of Roentgen | x-ray intensity from a linear accelerator unit is 200R/min |
| In diagnostic radiology it is acceptable to assume that 1R is equal to | 1J |
| In SI system | 1000 rad is equivalent to 10Gy |
| When SI is used, radiation exposure is defined in units of colombs/kilogram. With regard to this unit of measure, which of the following is true | Coulomb refers to electrons released in ionization |
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atesta0824
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