Safety Flashcards

1
Q

4 requirements necessary for xray production

A
  1. source of free electrons
  2. acceleration of electrons
  3. focusing of electrons
  4. deceleration of electrons
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2
Q

define thermionic emission

A

heating of the filament to the point that electrons boil off its surface (free electrons)

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3
Q

what is the focusing cup typically made of

A

molybdenum

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4
Q

what are the electrons doing when they slam into the anode

A

the electrons are decelerating

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5
Q

what is produced at the end of x-ray production (specific)

A

99% heat, 1% xray.
brem photons and characteristic photons are produced

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6
Q

smallest subdivision of an element that maintains all physical and chemical properties of the element

A

atom

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7
Q

how to find atomic number

A

number of protons in the nucleus

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8
Q

how to find atomic mass

A

sum of protons and neutrons in the nucleus

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9
Q

electrons are held in their orbital shells by what

A

electron binding energy

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10
Q

if the electron is closer to the nucleus its electron binding energy is what

A

EBE is stronger

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11
Q

if the electron is farther from the nucleus its electron bind energy is

A

EBE is weaker

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12
Q

the electron binding energy of an atom with a higher atomic number will be..

A

EBE will be stronger the higher the atomic number is

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13
Q

what is the max amount of electrons the valence shell can have

A

8 electrons

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14
Q

energy levels of K shell, L shell, and M shell (in KEV)

A

K= 69.5 kev
L= 12.1 kev
M= 2.7 kev

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15
Q
A
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