Hot Girls History Lesson
What year did the potter bucky grid come out
1921
Which area monitoring device decides if a room needs more safety structures
cutie pie or ionizing chamber type survey meter
How would you find the cumulative effective dose?
age X 10 mSv
what is an isotope vs an ion?
Isotope is 2 atoms with the same atomic number different atomic masses
an ion is an atom with a surplus or deficient number of electrons
Theory of relativity and what its used for
E= mc ^2
atomic bombs and nuclear medicine
What year was ALARA established? Bonus points if you know what it stands for!
What is 1954
Bonus question answer: As Low As Reasonably Achievable
Where should you stand when doing a mobile x-ray and why?
Right angle to the patient because scatter rarely happens at right angles
Roentgen/ Coulomb measures what?
Exposure in air
what is the minimum mm needed for filtration?
2.5mm
What does HIPPA stand for?
Health insurance portability accountability act
What year was the intensification tube for fluoroscopy discovered?
What is 1948
Dose limits for tabletop mobile unit and fixed fluoro tube
15-inch distance for fixed fluoro unit
12-inch tube for table top limit on a mobile unit
Curie/ Becquerel measures what?
Radioactivity- decay of radioactive nucleotides
What is ionizing radiation?
any energy that is capable of moving an electron off an atom
how much natural radiation do we receive a year
2.95mSv
Wilhelm Konrad Roentgen discovered X-rays with what kind of tube?
What is a crookes tube
What are the sensing materials for TLD and OSL?
Lithium fluoride crystals and aluminum oxide
What does JCERT stand for
Joint review committee in Radiologic technology
Which interactions occur in the diagnostic range?
photoelectric, compton scattering, and coherent scattering
doses per year for student tech and little tiny fetus
50mSv for tech
1mSv for student
5mSv total length of gestation
What is Barium platinocyanide
Name the beam limitation devices and what they do
PBL- collimates the X-ray beam to the size of IR
collimator- the smaller the collimator the less the exposure to the patient
filtration- absorbs low energy x rays before they reach patient
exposure factors- KvP Mas
What is photodisintegration? What is the minimum MeV of energy needed for this process?
High-energy photons which interact directly with the nucleus of the atom
Minimum 10 MeV
what is Pair production and how much MeV is needed for the process
pair production is high energy photons which interacts with the nucleus
minimum 1.o2 MeV needed
List as many properties of x rays as you can 100 points each property
highly penetrating invisible rays
electrically neutral
heterogeneous waves
liberate small amounts of heat passing through matter
travel at the speed of light
can ionize gas
can NOT be focused by a lens
produce chemical and biological changes
produce secondary and scatter radiation
produce an image on a photographic film
emerge on a straight line then diverge
cause certain crystals to fluoresce