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RAD150 Chapter 1

Velocity= v distance/time d/t
Average Velocity= _ v (initial + final velocity)/2 (Vo+Vf)/2
Acceleration= a (final - initial velocity)/time (Vf-Vo)/t
Force= F mass x acceleration ma
Weight= Wt mass x acceleration of gravity mg
Momentum= p mass x velocity mv
Work= W force x distance Fd
Power= P work/time w/t
Kinetic energy= KE 1/2(mass)(velocity)^2 1/2mv^2
Potential energy= PE mass x gravity x height above earth's surface mgh
Temperature in celsius= Tc 5/9(Tf-32)
Temperature in farenheit= Tf 9/5Tc+32
Temperature in Kelvin= Tk Tc+273
kilo- (k) 1000
mega- (M) 1,000,000
giga- (G) 1,000,000,000
centi- (c) 1/100
milli- (m) 1/1000
micro- (u) 1/1,000,000
Define mass quantity of matter described by its energy equivalence
Define weight force exerted on a body by gravity
Define energy ability to do work
How is energy measured? joules or electron volts
Define radiation transfer of energy
4 types of natural/environmental radiation cosmic rays, terrestrial, internal radionuclides, radon
When, how and by whom were xrays discovered? 1895 by Roentgen using Crooke's tube
Who developed 1st fluoroscope and when? 1898 by Edison
What was urged in 1904 by Rollins? collimation and ALARA
What combined in 1913? Snook transformer & Coolidge tube
3 basic quantities mass (kg), time (s), length (m)
Every measurement must have what 2 components? magnitude & unit
What are Newton's 3 laws? inertia, force, action/reaction
3 ways heat is transferred? conduction, convection, radiation
Air kerma (Gy) unit of radiation exposure/intensity
Gray (Gy) unit of radiation absorbed dose
Sievert (Sv) unit of occupational exposure and effective dose
Becquerel (Bq) unit of radioactivity
Air kerma= roentgen (R) x .01
Gray= rad x .01
Sievert= rem x .01
Becquerel= curie (Ci) x 3.7x10^10
Created by: SCash21