Part II

Question 1

November 8 1895 [person,event]

Answer 1

Wilhelmina Conrad Roengen discovered x-rays

Question 2

1896 [person, event]

Answer 2

First x-ray treatment of a cancer patient delivered

Antoine Henri Bequerel discover radioactivity

Question 3

1897 [person, event]

Answer 3

Joseph John Thomson
-Announced the finding of negatively charged particles which he called the electrons
Ernest Rutherford
-found two types of radiation from uranium, alpha and beta rays

Question 4

1898 [person,event]

Answer 4

Marie and Pierre curie discovered radium

P. Von Villard discovered gamma rays and fortune the similar to x-rays

Question 5

1901 [person, event]

Answer 5

Wilhelm Conrad Roentgen - first Nobel prize in physics

Question 6

1902

Answer 6

Guido Holzknecht presented chromradiometer -device to measure quantity of radiation administered

Question 7

1903

Answer 7

Nobel Prize award
Antoine Henri Becquerel
Marie Curie and Pierre Curie

Question 8

1906

Answer 8

H. Geiger and Ernest Rutherford

-instrument to count alpha particles with the help of W. Mueller

Question 9

1908

Answer 9

P. Von Villard proposed a unit of dose based on ionization of air by x-rays

Question 10

1913

Answer 10

Half value layer was suggested as a term for expression of quality of x-rays

Question 11

1922

Answer 11

Arthur Holly Compton

-discover the change in wavelength of scattered x-rays “Compton Effect”

Question 12

1925

Answer 12

H. Flicker and Otto Glasses developed the thimble ionization chamber

Question 13

1928

Answer 13

Commission of Measures and Units proposed the “roentgen” as the international unit of dose