Chapter 2: The discovery of X rays
X rays were discovered to be biologically damaging in ____
1898
Arthur wolfram fuchs invented _______
1st fixed kVp technique system. (optimal kVp)
Range of Hertz
3*10^8, 3*10^8 Hz
Waves are measure in _______
Angstroms (A)
_______ authored Modern X ray technique the 1st principles book
Eddy clifford jerman
____________ founder of ASRT formerly AART
Eddy clifford jerman
Wilhelm conrad rontgen
German scientist who discovered X-rays.
what were the first x rays of?
His wifes hand, compass, piece of metal, and weights
Wilhelms paper name
On a new kind of rays
Roentgen rays
Refers to x-rays
Eddy clifford Jerman was the first _______
Teacher of radiography
X rays are named because
X was the unknown variable
Electromagnetic radiation (EM)
a form of energy that is the result of electric and magnetic disturbances in space
Ioniziation
adding or removing an electron from an atom
____________ was the name of his wilhelm's wife
anna bertha
Had the first x ray lab in Chicago who died from excessive exposure
arthur wolfram fuchs
Waves range
between 0.1 and 1 A in radiography if a whole number ever has a 0 take it OFF ex 1.0 make it 1Wavelength and
Photon energy and frequency are _________
directly proportional (when one increases the other increases)
Waves -wavelength
distance between 2 crests
X rays are a man made form of _____ that is created when high speed e- are suddenly stopped
electromagnetic radiation
Photon energy is measured in
electron volts (ev) (like a electric car)
Eddy Clifford jerman was known as the ____
father of radiography in US
Fluorescence
glowing, producing light
Waves are measured in
hertz
wavelength and frequency are ______ related. If one increases , the other decreases
inversely
4 things we have control of in radiogolgy
kVp-Kilo voltage peak mA- milli ampreage Distance (in room) time- mA/s
Formula for time in radiography
mA X seconds- mA/s ex. 100 mA * 1/10 =10 mA/s
Date that x-rays were discovered
november 8, 1895 in wurzburg germany
The name of arthur wolfram fuchs book was called _____ published in 1955
principles of radiographic exposure & processing
Roentgen was the first _____ when he produced 4 photographs to acccompany his first draft of his paper
radiographer
Particles -photons (quanta)
small discrete bundles of energy (quantum =1)
Roentgenology
study of x ray exposure
Frequency
the number of complete wavelengths that pass a point in a given time
_____ changes on depending on thickness of body
time and amperage
Roentgen
unit of x ray exposure
Crookes tube
vacuum tubethat roentgen first experimented with high voltage electricity
Dual nature of x ray energy - x rays act like ___________
waves, particles
