OHIO GXMO STUDY GUIDE REVIEW EXAM QUESTIONS
AND ANSWERS GRADED A+ LATEST UPDATE.
Who discovered x-rays? ANS >>> Wilhelm Conrad
Roentgen
When were x-rays discovered? ANS >>> November 8,
1895 in Germany
What are the 3 Cardinal Principals of radiation
protection? ANS >>> Maximize distance, maximize
shielding, minimize time
,What is Erythema? ANS >>> Reddening of the skin
What is Anaemia? ANS >>> Decrease of oxygen in
blood, low blood count
What is Leukopenia? ANS >>> Low WBC count
What is epilation? ANS >>> Loss of hair
What does ALARA stand for? ANS >>> As Low as
Reasonably Achievable
What is collimation? ANS >>> Limits the size/area of the
x-ray beam
What is a proton? ANS >>> Positively charged, in
nucleus of atom
,What is a neutron? ANS >>> No electrical charge, in
nucleus of atom
What is an electron? ANS >>> Negatively charged, in
orbital shell around nucleus of an atom
What is an ion? ANS >>> A charged particle
What is ionization? ANS >>> Process of an electron
leaving its orbit around a neutral atom
What is an ion pair? ANS >>> An electron and a positive
charged atom
What does isotropic mean? ANS >>> Equal in all
directions
What is energy? ANS >>> The ability to do work
, What is mass? ANS >>> The quantity of matter
What is matter? ANS >>> Anything that occupies space
and has mass
What travels at 186,000 miles/second? ANS >>> All
electromagnetic radiation
Does electromagnetic radiation have mass? ANS >>> No
What has higher energy than visible light? ANS >>> X-
rays
What happens when x-rays are absorbed by body
tissue? ANS >>> Causes ionization of atoms and
molecules
AND ANSWERS GRADED A+ LATEST UPDATE.
Who discovered x-rays? ANS >>> Wilhelm Conrad
Roentgen
When were x-rays discovered? ANS >>> November 8,
1895 in Germany
What are the 3 Cardinal Principals of radiation
protection? ANS >>> Maximize distance, maximize
shielding, minimize time
,What is Erythema? ANS >>> Reddening of the skin
What is Anaemia? ANS >>> Decrease of oxygen in
blood, low blood count
What is Leukopenia? ANS >>> Low WBC count
What is epilation? ANS >>> Loss of hair
What does ALARA stand for? ANS >>> As Low as
Reasonably Achievable
What is collimation? ANS >>> Limits the size/area of the
x-ray beam
What is a proton? ANS >>> Positively charged, in
nucleus of atom
,What is a neutron? ANS >>> No electrical charge, in
nucleus of atom
What is an electron? ANS >>> Negatively charged, in
orbital shell around nucleus of an atom
What is an ion? ANS >>> A charged particle
What is ionization? ANS >>> Process of an electron
leaving its orbit around a neutral atom
What is an ion pair? ANS >>> An electron and a positive
charged atom
What does isotropic mean? ANS >>> Equal in all
directions
What is energy? ANS >>> The ability to do work
, What is mass? ANS >>> The quantity of matter
What is matter? ANS >>> Anything that occupies space
and has mass
What travels at 186,000 miles/second? ANS >>> All
electromagnetic radiation
Does electromagnetic radiation have mass? ANS >>> No
What has higher energy than visible light? ANS >>> X-
rays
What happens when x-rays are absorbed by body
tissue? ANS >>> Causes ionization of atoms and
molecules
