Timeline

Question 1

• – Herman Blumgart, a Boston physician, first used radioactive tracers to diagnose heart diseases

Answer 1

1927

Question 2

– Martin Klaproth discovers Uranium and named it after the planet Uranius

Answer 2

1979

Question 3

– Henri Becquerel uses Uranium and radium to discover alpha and beta rays, type of radiation
• - Paul Villard discovers gamma rays

Answer 3

1896

Question 4

– Pierre and Marie Curie first used the word “radiation” to describe the rays they were finding; they also discovered
Polonium and radium.
- Samuel Prescott used radiation to kill bacteria in food

Answer 4

1989

Question 5

___-___ – Ernest Rutherford and Frederick Soddy establishes the theory of Nuclear Reactions (by bombarding alpha and beta particles)

Answer 5

1902- 1919

Question 6

– George von Hevesy – Father of Nuclear Medicine, conceives the idea of radioactive tracers

Answer 6

1911

Question 7

– discovery of artificial radioactivity by Frederic JoliotCurie and Irene Joliot-Curie

Answer 7

1934

Question 8

– discovery of Fe-59, John Livingwood, Fred Fairbrother , Glenh Seaborge

Answer 8

1937

Question 9

– Technitium99m discovered by C. Perrier and E. Segre, as an artificial element to fill space number 43 in the periodic table

Answer 9

1937

Question 10

▪ The building block of a radiographer’s
understanding of interactions between
ionizing radiation and matter

Answer 10

Atom

Question 11

Atom Came from the Greek word, “”
which means indivisible

Answer 11

atomos

Question 12

2 Parts of an Atom

Answer 12

Nucleus
Orbits/ shells

Question 13

▪ Central core of an atom
▪ Contains nearly all the mass of
an atom
▪ Positively charged
▪ Contains the nucleons
(protons+neutrons)

Answer 13

Nucleus

Question 14

▪ Composed of electrons, which is
negatively charged

Answer 14

Orbits / Shells

Question 15

3 Subatomic
Particles

Answer 15

Neutron
Electron
Proton