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Introduction to Radiologic Sciences > Pioneers of Radiology > Flashcards

Pioneers of Radiology Flashcards

1
Q
  • Describe materials as being composed of ultimate particles
  • developed the cocept of atoms
  • Atomos: greek word meaning indivisible
A

Democritus

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2
Q
  • Discovered some of the effects of electricity
  • During the 500 BC, he howrked with static electricity by rubbing fur on amber then later producing static charges
A

Thales

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3
Q

Three specific aspects of physical science that helped paved for the discovery of x-rays

A
  • Electricity
  • Vacuums
  • Image recording materials
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4
Q

Produced the first recognized vacuum

A

Evangelista Torricelli

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5
Q

A valve or device that is free of air which controls electric current flow

A

Vacuum

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6
Q

Contains negatively charged electrodes

A

Anode

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7
Q

Contains positively charged electrodes

A

Cathode

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8
Q
  • Invented an air pump that was capable of removing air from a vessel or tube
  • contributed to the first electric generator, which is made fron a revolvjng ball of sulfur that conducts electricity as well as producing fluorescence
A

Otto von Guericke

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9
Q

Presence of glow

A

Fluorescence

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10
Q
  • one of the first to extensively study electricity and magnetism
  • correctly deduced a magnet
  • attributed to the first electroscope
A

William Gilbert (of England)

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11
Q

A device used to detect electric charge

A

Electroscope

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12
Q

Formulated the theory of electromagnetism

A

James Clerk Maxwell

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13
Q
  • Worked with glass, silk, and paper
  • distinguished two kinds of electricity: positive and negatively charged particles
A

Charles du Fay

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14
Q

________ means negative in french, while ________ means positive in french

A

Resinous
Vitreous

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15
Q
  • built and improved the static generator
  • contributed to the composition of optics, calculus, and his 3 laws of motion
A

Isaac Newton

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16
Q
  • demonstrated a current of electricity by transmitting electricity from a Leyden jar through wire and a vacuum tube
A

William Watson

17
Q

Deviced used for storing strong static electricity

A

Leyden jar

18
Q
  • noted that when a tube cracked (broken vacuum) and some air leaked in, the amount of air in the tube determined the coloration
A

William Morgan

19
Q

Rust

A

Coloration

20
Q
  • induced an electric currwnt by moving a magnet in and out of a coil in 1831
  • studied electricity and electrochemistry
  • proposed the law of electrolysis
  • discovered benzene and hydrocarbons
A

Michael Faraday

21
Q
  • known for Electromagnetic Radiation and Photoelectric Effect
    -inventor of the induction coil
A

Heinrich Daniel Ruhmkorf

22
Q

A type of induction coil that produce sparks where electromagnet is released, ejecting electring during x-ray procedures

A

Ruhmkorff coil

23
Q

Radient energy; Electromagnetic field present in space
- radiowaves
- microwaves
- infrared (IR)
- visible light
- ultraviolet (UV)
- Gamma Rays

A

Electromagnetic radiation

24
Q
  • made a significant improvement in the electroscope, a vessel for discharging electricity under vacuum conditions
  • suspended electric conductor to insulate metallic containers to avoid being electrocuted
A

Abbe Jean-Antoine Nollet

25
Q

2 types of radiation

A
  • Ionizing (aplpha, beta, gamma, x-rays)
  • non-ionizing
26
Q
  • conducted many electrical experiments
  • made a kite and at the end of the kite is a key, and the lightning struck the key, concluding the presence of electricity
A

Benjamin Franklin (Pennsylvania)

27
Q
  • conducted several experiments with cathode rays, which are streams of electrons emitted from the surface of a cathode
A

Johann Wilhelm Hittorf

28
Q

negative side of x-ray tube

A

Cathode

29
Q
  • invented the Crookes Tube
  • investigated cathode rays
  • disvovered Thallium (TI)
A

William Crookes

30
Q
  • Found that cathode rays could penetrate thin metal and would project a few centimeters into the air
  • studied the deflection of rays as a result of magnetic fields
A

Phillip Lenard

31
Q
  • produced a radiograph in 1890
A

William Godspeed

32
Q

Hospital or medical term for x-rays

A

Radiographs

33
Q
  • produced the first photographic copy of written materian in 1727
A

Johann Heinrich Schulze

34
Q

Produced a film with gelatin silver bromide emulsion

A

Richard Leach Maddox

35
Q

Gelatin silver bromide is coated with _______ (white pigmemt)

A

Baryta

36
Q

Images cannot be created if there is no ________

A

Silver bromide emulsion

Introduction to Radiologic Sciences (7 decks)

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