RDTC 213 Physics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Optical Density (OD)
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| show | Light
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| show | Dark
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| __ is the basic tool showing how dark film is for various amounts of exposure? | show 🗑
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| show | Sensitometry
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| show | True
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| QC is required by ACR, MQSA, and JRCERT (T/F)? | show 🗑
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| show | 1. Accurate & Timely DIAGNOSIS
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| show | 2. Minimize RADIATION EXPOSURE
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| show | 3. Minimize COST to Patient & Community
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| Checking indicators, locks, cables, light intensity, hand switch placement are examples of what type of QC? | show 🗑
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| show | Overload Protection
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| show | ±5%
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| show | ±1 kVp
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| show | ±5% , Except under 10 ms
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| Antiquated tool for testing Timer? Only works with what type of generators? | show 🗑
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| show | 6 dots (HWR = 60 pulses/sec, 1/10 x 60)
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| show | 12 dots (FWR = 120 pulses/sec, 1/10 x 120)
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| show | Synchronous Motor, 1 rev/sec
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| Formula for degrees of arc on Synchronous Motor Timer? | show 🗑
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| show | HVL ≥ 2.5 mm Al equiv at 80 kVp
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| __ tests efficiency of tube Filtration? Fundamental way to protect patients. | show 🗑
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| HVL is mAs dependent (T/F)? | show 🗑
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| show | Pass - 3 ≥ 2.5 and .03 = 1/2 of 60
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| __ is a QC test for generator output & consistency? | show 🗑
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| What creates the current in a Radiation Meter? | show 🗑
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| Acceptable range for Reproducibility output variance? | show 🗑
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| Steps to calculate Reproducibility Range | show 🗑
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| If all but 1 number are within calculated Reproducibility Range, the test PASSES (T/F)? | show 🗑
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| show | ±10% mA/mAs
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| Steps to calculate mA Linearity? | show 🗑
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| show | mAs Linearity
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| mR/mAs Linearity calculations should be Consistent as long as __ & __ do Not change? | show 🗑
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| Grid Alignment test tool tests Alignment by off-centering to the grid, intentionally causing __ ? | show 🗑
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| Grid Alignment test tool, the END dots should have the MOST exposure (T/F)? | show 🗑
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| 2 tests of RESOLUTION | show 🗑
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| These 3 tests utilize geometry to measure Actual Focal Spot Size? | show 🗑
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| show | National Electrical Manufacturer's Assoc (NEMA)
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| NEMA Tolerance for fs < 1.0 mm | show 🗑
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| NEMA Tolerance for fs 1.0>2.0 mm | show 🗑
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| NEMA Tolerance for fs >2.0 mm | show 🗑
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| show | False - Length x.7
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| Thickness tracking, kVp tracking, Minimum response time, & Backup timer are QC tests for __ ? | show 🗑
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| show | (# Repeats/# Total) x 100
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| 3 ways to address concerns in Repeat Rate data | show 🗑
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| show | 10 R/min
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| Max dose for Fluoro in Boost? | show 🗑
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| show | 3-5 R/min
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| show | Exposure
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| Optical Density Formula | show 🗑
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| show | 0
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| log₁₀10 | show 🗑
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| show | 2.0
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| show | 3.0
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| Two exposures, one __ the other, will be separated by __ on the Log Exposure scale? | show 🗑
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| On the Characteristic Curve, a curve to the LEFT will be __ with more __ for the same exposure? | show 🗑
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| show | Flat = LESS Contrast
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| show | Less Contrast = HIGH Exp Latitude
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| __ is the range of techniques that produce an acceptable film density? | show 🗑
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| show | Low Contrast
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| show | Steep = MORE Contrast
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| show | True
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| log of any 2 #s that are HALF, difference will ALWAYS be .3 (True/False)? | show 🗑
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| show | ↑ Contrast = ↓ Lat
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| show | ↓ Contrast = ↑ Lat (wider)
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