Outcome 4 Flashcards

1
Q

What are the key elements to a radiation protection program?

A
  • structure and personnel
  • proof compliance (postings)
  • facilities design
  • protective practices (equipment and supplies)
  • special considerations (PET)
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2
Q

When are licenses required for use of nuclear substances?

A

When you’re handling >1 EQ nuclear substances.

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3
Q

Who are the individuals that may be involved in the radiation protection program?

A
  • management
  • radiation safety committee
  • radiation safety officer
  • NEW
  • medical supervisor
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4
Q

PET imaging uses _____ and it is a _____ emitter.

A

F-18, positron

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5
Q

What are the licensee’s obligations?

A
  • management control over work practices
  • personnel qualifications and training
  • control of occupation and public exposure
  • set action levels and procedures
  • monitoring and determining quantity and concentrations of nuclear substances released due to activity
  • monitoring and recording doses
  • keeping records!
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6
Q

What is the primary role of a radiation safety committee?

A

They are there to advise the RSOs and applicant’s management on the quality and effectiveness of radiation protection policies and programs and the safety of employee work practices.

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7
Q

What are the RSOs responsibilities?

A
  • provide day-to-day administration and control the radiation protection programs
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8
Q

What are the RSO qualifications?

A
  • have relevant work experience and formal training assuring radiation safety
  • 3 years of relevant practical training and advanced training for larger scale complex uses of nuclear substances
  • understanding of methods and technology to control, use, handle, store and dispose of radioactive material
  • understand regulatory processes and requirements, legislation and license conditions
  • can be part of the RSC or not
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9
Q

RSOs are the only people who can request changes to a license. T/F

A

True.

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10
Q

Within how many days does changes to the RSO position need to be communicated to the commission?

A

Within 5 days.

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11
Q

What are some RSO duties?

A
  • prepare annual reports on radiation protection program
  • ensure NEW designation, training and monitoring
  • initiate changes to procedures, equipment and facilities as required by the CNSC
  • ensure all records and reports required of the institute by legislation and licenses are prepared, maintained or submitted as required
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12
Q

What are the 6 things that an RSO has to inform workers in writing?

A
  • NEW status
  • radiation risks
  • applicable effective dose limits
  • dosimeter readings
  • rights and obligation of pregnant NEW
  • Adherence to information privacy act
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13
Q

What are the responsibilities of a NEW?

A
  • protecting themselves and others (public and environment as well)
  • follow all regulations and radiation protection practices
  • ensuring compliance with CNSC regulations by obeying signs and posting
  • inform RSO if there is something that is CNSC non-compliance
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14
Q

What determines a room’s classification?

A

The amount of unsealed nuclear substances used

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15
Q

What makes a storage room different from the rest of the classifications?

A

Sources are not being handled/used within this space

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16
Q

Basic-level room - ____ than ____ EQ
Largest quantity used at a single time doesn’t exceed ____x it’s ALI

A

Greater than 1 EQ
Exceed 5x its ALI

17
Q

Intermediate-level room - largest quantity used at a single time does not exceed ____x its ALI

A

50x

18
Q

High-level room - largest quantity used at a single time does not exceed ____x its ALI

A

500x

19
Q

Containment-level room - largest quantity used at a single time ______ (does/doesn’t) exceed ____x its ALI

A

DOES exceed 500x its ALI

20
Q

Nuclear medicine room classification?

A

Source larger than 1 EQ
But in vivo related to diagnostic or therapeutic nuclear medicine to be performed

21
Q

What are all NM hot labs classified as?

A

Intermediate level

22
Q

What CNSC document defines and describes design requirements for labs that use radionuclides?

A

GD-52 design guide for nuclear substance laboratories and nuclear medicine rooms

23
Q

What are some special equipment found in PET facilities?

A
  • dose calibrators with thick lead shielding
  • well counters with external shields to reduce background from stored doses
  • tungsten syringe shields to reduce finger dose
  • extra thick L block table top shields (250 kg > 60 kg NM)
24
Q

Why is extra shielding needed for PET?

A
  • high energy of annihilation radiation
  • patients are a constant source of radiation throughout procedure
25
Q

What are examples of best practice for PET patients?

A
  • uptake rooms
  • camera intercom systems and remote observations
  • increased real time monitoring
26
Q

What are the two categories of detectors used?

A

1) gas detectors
2) crystal detectors

27
Q

Why is performing quality control on dosimeters important?

A
  • to provide evidence of their accuracy, precision, and minimum detectable activity (MDA)
28
Q

What are the two area monitoring detectors?

A

1) simple ionization survey meters (Ludlum)
2) GM detectors/ASM or continuous monitors

29
Q

What are the three types of personnel monitoring detectors we can use?

A

1) Nal(Tl) thyroid uptake probe
2) OLSD/TLD dosimeter badges
3) digital dosimeters

30
Q

What are the two examples of nuclear substance monitoring that are used?

A

1) dose calibrator
2) Nal(Tl) well detectors/multichannel analyzers

31
Q

What are the gas detectors we use?

A
  • Ludlum
  • GM/ASM
  • digital dosimeters
  • dose calibrators
32
Q

What are the crystal detectors we use?

A

Nal(Tl) uptake probe and well detectors, OLSD/TLD