rad safety Flashcards

1
Q

transmission of energy

A

radiation

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2
Q

released energy by atoms

A

ionization radiation

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3
Q

heavy, positive

A

alpha particles

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4
Q

lighter, negative

A

beta particles

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5
Q

high energy

A

gamma rays and xray

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6
Q

neutral particle

A

neutron

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7
Q

use of ionization: xray ct scan nucmed etc

A

medical imaging

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8
Q

use of ionizing: target and destroy cancer

A

cancer treatment

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9
Q

use of ionizing:sterilize

A

sterilization

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10
Q

use of ionizing:nuclear

A

energy production

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11
Q

source:exposed everywhere

A

natural radiation

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12
Q

source: stars, sun etc

A

cosmic radiation

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13
Q

source: earth surface

A

terrestrial radiation

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14
Q

source: potassium 40 and carbon 14

A

internal radiation

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15
Q

source: microwave,phone etc

A

man made

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16
Q

source: xray and ct scan

A

medical radiation

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17
Q

source:construction

A

industrial radiation

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18
Q

source:smoke detectors

A

consumer products

19
Q

NCRPM MEANS?

A

national council on radiation protection and measurement

20
Q

AEC MEANS?

A

atomic energy commission

21
Q

dose effecf in human body

A

erythema dose

22
Q

measures amount of radiation

A

roentgen

23
Q

per unit

A

radiation absorbed dose

24
Q

effective absorb dose equivalent limits

A

EDE

25
Q

ALARA MEANS?

A

as low as reasonably achievable

26
Q

no save level of radiation exposure

A

non threshold

27
Q

minimum dose is required

A

threshold concept

28
Q

outweigh the potential risk

A

risk versus benefit relationship

29
Q

general public dose in radiation

A

0.05 sieverts

30
Q

worker dose in radiation

A

0.5 sievert

31
Q

long term effect

A

somatic effects

32
Q

any alteration in genetic DNA

A

mutation

33
Q

germ cell

A

genetic effect

34
Q

skin erythema, vomiting

can be noticed in few days

A

deterministic

35
Q
  1. years or next generation
A

stochastic

36
Q

give shielding devices

A

gonad, shadow shield, stand type shadow shield, flat contact shield, shaped contact shield

37
Q

source of exposure

A

xray and kilovoltage

38
Q

treatment for patient:natural

A

radionuclide radium

39
Q

treatment for patient:man made

A

cobalt radionuclide

40
Q

methods of protection

A

time, distance and shielding

41
Q

personnel protection

A

gloves and apron
lead goggles
lead apron

42
Q

personnel monitoring

A

OSL

43
Q

thermoluminescent dosmitery

A

TLD