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CSB012 EXAM STUDY SET @
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CSB012 EXAM STUDY SET @2024-2025
time, distance, shielding - Answer ways to minimise personal radiation doses
wilhelm conrad roentgen - Answer discovered x-rays in germany
1895 - Answer year x-rays were discovered
radiation - Answer energy emitted and transferred through space (as waves or
particles)
ionising radiation - Answer any type of radiation capable of removing an orbital electron
from the atom with which it interacts
particulate radiation - Answer particles with a high kinetic energy can be capable or
ionisation
electromagnetic radiation - Answer x-rays, gamma rays
10^-9 - 10^-12 m - Answer wavelength of x-rays
cosmic
terrestrial
inhaled radon
internal radionuclides - Answer types of natural radiation (3mSv/year)
medical imaging
industrial
nuclear power - Answer man-made radiation (3.2mSv)
gray - Answer radiation absorbed dose J/g
sievert - Answer radiation equivalent dose
becquerel - Answer activity of decaying radionuclide (disintegrations/second)
5mSv - Answer chest ct dose
1.5 - Answer natural radiation in australia/year
0.06msv - Answer chest x-ray dose
20mSv/year averaged over 5 years - Answer occupational dose limit
, 1mSv/year - Answer public dose limit
as low as reasonably achievable - Answer ALARA
x-ray tube
high voltage section
operating console - Answer parts of an x-ray machine
x-ray tube - Answer produces x-rays
protective housing - Answer protects against leakage radiation, electric shock and heat
high voltage section - Answer converts low supply voltage into a kilovoltage of useable
waveform
stepup transformer
filament transformer
rectifiers (ac>dc) - Answer parts of high voltage section
expose - Answer after prep, this sends the electrons to the anode and creates
heat/x-rays
3410 - Answer melting point of tungsten
cathode (negative - Answer heated to energise electrons needed to bombard anode
filament cup (negative) - Answer used to focus the negatively charged electrons
mA - Answer electrical supply to cathode
amperes - Answer current - electron flow through a conductor/second
voltage - Answer power of attraction, driving force for current
characteristic x-rays - Answer inner shell electron is emitted and its vacancy is filled by
an outer shell electron
bremsstrahlung x-rays - Answer incoming electron is influenced to change direction by
force of nucleus, decreased velocity causes energy difference
high contrast - Answer fewer grey scales, sharper differences
low contrast - Answer small indistinct differences, maximum greyscales
optical density - Answer degree of blackening of an image
contrast - Answer number of greyscales shown
Radiation Health, QLD - Answer license to use irradiating apparatus
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