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NMIS Health Physics > Block 1 Review > Flashcards

Block 1 Review Flashcards

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1
Q

Non ionizing radiation doesnt….

A

Have enough energy to move electrons, example: microwave

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2
Q

Example of written directive versus not.

A

Written- therapies
Not- tc99m tests

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3
Q

4 types of ionizing radiation

A

Alpha
Beta
Gamma
X rays

33 energy

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4
Q

Natural vs man made radiation

A

Natural- radon, potassium
Man made- TV, smoke detector

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5
Q

Characteristic xray

A

Emitted from heavy elements when their electrons make transitions from a higher energy level to a lower one

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6
Q

Bremsstrahlung x-rays

A

Emitted when an accelerated electron is decelerated when they are fired at a metal target

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7
Q

Four federal agencies

A

NRC, FDA, DOT, EPA

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8
Q

TJC The joint commission is over,

A

Standards for safety

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9
Q

Dose rate formula

A

D2= D1 (d1^2/d2^2)

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10
Q

NRC

A

Title 10 cfr
Powerplants and medical facilities

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11
Q

10 CFR 20

A

Dose limits

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12
Q

DOT

A

Regulates packaging and transport of hazardous material
49 car parts 171-178

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13
Q

Remember TDS

A

Time distance shielding

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14
Q

FDA

A

Regulates design and production of radiation emitting devices
Title 21 cfr

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15
Q

Leak tests are done every

A

6 months

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16
Q

49 cfr is

A

Transportation

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17
Q

EPA

A

Disposal of radioactivity
Title 40 cfr

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18
Q

FDA

A

Manufacturing and approval of drugs, etc

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19
Q

Rad area labeling:

A

Dose rate >5rem 1 hr radiation area
Dose rate >100rem 1 hr high Rad area
Dose rate >500rem 1 hr very high Rad area
Area where concentrations could exceed DAC, derived air concentration something

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20
Q

Three types of licenses

A

General
Specific license of limited scope
Specific license of broad scope

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21
Q

10 cfr 19

A

General worker training

22
Q

10 cfr 35

A

Licensing byproduct

23
Q

10 cfr 32

A

Licensing distribution

24
Q

Our measurements are in

A

J, and eV

25
Q

Examples of different licenses

A

General- smoke detector
Broad- medical- ABC
Limited- under license

26
Q

Unrestricted area

A

2mrem/hr

27
Q

Written directives contain

A

Date and signature
Patient name
Radiopharm
Dosage
Route of admin

28
Q

TEDE
TODE
DDE
SDE
LDE

A

Total effective dose equivalent
Total organ dose equivalent
Deep dose equivalent
Shallow dose equivalent
Lens eye dose equivalent

29
Q

Type of electromagnetic radiation that is created when the nucleus de-excites as opposed to the atom de-exciting

A

Gamma rays

30
Q

Radiation emission that competed with gamma ray emissions for an excited nucleus

A

Conversion electron emission

31
Q

Occupational dose limits

A

TEDE <5REM
TODE <50REM
LED <15REM
SDE <50 REM

32
Q

DDE+ Internal dose to fetus

A

<0.5 rem 0.005 Sv

33
Q

Move decimal 2 to left for rem to Sv

A
34
Q

ALI

A

Annual limit on intake is a derived limit for the amount of radioactive material taken into the body of an adult worker by inhalation, etc

35
Q

DAC

A

Derived air concentration means the concentration of a given radionuclide in air

36
Q

Dose for a min exposure

A

0.17 mrem

37
Q

Dose for a 2 min exposure

A

0.33 mrem

38
Q

Pregnancy workers are allowed ___rem additional after declaration

A

50

39
Q

Amount of tc99m that requires a license to post a work area/room sign bearing Caution, Radioactive material? 10 cfr 20

A

Tc99m > 10mCi

40
Q

A person is considered a radiation work if their whole body dose will exceed

A

100 mrem

41
Q

10 cfr part 20

A

Basic radiation protection for workers

42
Q

Who is responsible for preparing written directives

A

Authorized user

43
Q

If you fail a leak test, report within

A

5 days

44
Q

A radionuclide that is a pure beta emitter is best suited for what type of radiation in nuclear medicine

A

Therapeutic studies

45
Q

Alpha radiation

A

Positively charged particle consisting of two protons and two neutrons

46
Q

Beta radiation

A

High energy electrons, carrying a negative charge

47
Q

Positron radiation

A

Positive electron

48
Q

Gamma radiation

A

Higher energy photons, the most energetic

49
Q

X rays

A

A relatively high energy photon

50
Q

Which of the following is not true regarding electromagnetic radiation

A

Has mass proportional to wavelength

51
Q

Which type of electromagnetic radiation is produces when high energy electrons slam into a z target material

A

Bremmstrahlaung xrays

52
Q

Which type of electromagnetic radiation will be created whenever positions are present

A

Annihilation photons 511 kev

NMIS Health Physics (1 decks)

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