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NMTT 1301 U2 Exam

Half life Value and Layer, radiology safety concepts, EM spectrum, conversions

QuestionAnswer
What radiation type has the following characteristics: No atomic mass, a -1 charge, and which's emission results in a proton being added to the nucleus of the original element reacting. Beta radiation
What radiation type has the following characteristics: atomic mass of 4 amu, +2 charge, ionized quickly and is most dangerous as an internal source of radiation Alpha radiation
What radiation type has the following characteristics: no atomic mass, no charge, results from any radioactive decay to stabilize energy levels w/in nucleus, and has the most penetrating power Gamma radiation
What radiation type has the following characteristics: No atomic mass, +1 charge, and decreases the number of protons in the reacting nucleus by 1 Positron radiation
What health effects result from an acute dose of radiation? Non-stochastic Effects
Non-stochastic Effects have what kind of linear/threshold relationship? both linear and non-linear but threshold for both
With non-stocastic effects of radiation, does the dose determine probabiltiy or severity of effects? Severity
What does stochastic effects mean in radiation? Probabilistic but random effects associated with exposure to radiation
Do Non-stochastic or Stochastic health effects deal with exposure over an extended amount of time? Stochastic
What type of linear/threshold relationship do Stochastic health effects have? Linear, non-threshold
With Stocastic effects of radiation, does the dose determine probability or severity of effects? Probability
On the Electromagnetic Spectrum, as Frequency increases what happens to Wavelenth and Energy? As frequency increases, wavelength goes down and energy goes up.
What relationship does Frequency and Wavelength have? Frequency and Wavelength are inversely proportional to each other.
What type of Dose has the following characteristics: measures exposure for tissues by considering a radiation type weighing factor, and is used for measuring occupational doses Equivalent Dose
What type of Dose has the following characteristics: measures exposure by both radiation and tissue weighing factors Effective Dose
What type of Dose has the following characteristics: Measures the energy deposited into tissue by ionizing radiation Absorbed Dose
What is LD⌄50/60 The Lethal Dose given to subjects that caused 50% of the irradiated to be dead within 60 days, with no medical intervention
What is the LD⌄50/60 for humans? about 3.8 Gy
What type of linear/threshold relationship does LD⌄50/60 have? Nonlinear Threshold relationship
What does the Collar Dosimeter measure? Whole body / Deep Dose equivalent
What does the Ring Dosimeter measure? Shallow Dose Equivalent especially to the hands
What are the most Radiosensitive Tissues? Bone marrow, lymphoid tissues, reproductive organs, embryos, GI tract, and the lens of the eye
What are the most Radioresistant Tissues? Nervous / Brain Tissue, bone, and muscle
The biggest difference between x-rays and gamma particles is what? Their origin, x-rays originate from the electron cloud and gamma particles come from the nucleus.
What is the order of sections on the Electromagnetic Spectrum from low to high Frequency/Energy? Radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays
Common Conversion Factor: How many Centimeters are in an Inch? 2.54 cm = 1 in
Common Conversion Factor: How many Pounds are in 1 Kilogram 1 kg = 2.2 lbs
Common Conversion Factor: How many Kilometers is in 1 Mile 1 mi = 1.61 km
Created by: Christian.speck
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