Long Quiz (MIDTERM) Flashcards

(30 cards)

1
Q

The device commonly used to measure radiation exposure and provide a record of the dose receive.

A

DOSIMETER

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2
Q

The term that refers to the measurement and calculation of radiation dose received by an object or tissue.

A

DOSIMETRY

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3
Q

The unit of measurement for the absorbed dose of radiation in tissue, commonly used in dosimetry.

A

mGyt

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4
Q

Refers to a light-sensitive layer used in film and photographic materials, composed primarily of silver halide crystals suspended in a gelatin matrix.

A

PHOTOGRAPHIC EMULSION

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4
Q

It is used as IR in digital imaging system.

A

SCINTILLATION DETECTION

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5
Q

Specific type of gas-filled detector that operates by collecting ion pairs created by radiation and is commonly used for measuring low levels of radiation.

A

IONIZATION CHAMBER

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5
Q

Refers to a type of radiation detector that measures ionizing radiation by the ionization of gas within a chamber.

A

GAS-FILLED DETECTORS

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6
Q

Give at least one materials of scintillation detection.

A

CsI:TI or NaI:TI

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6
Q

It is us or contamination control in nuclear medicine laboratories.

A

GEIGER-MULLER COUNTER

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6
Q

Main type of radiation that a Geiger-Müller counter is commonly used to detect, including alpha particles, beta particles, and gamma rays.

A

IONIZING RADIATION

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7
Q

Refers to a type oof radiation detector that measures ionizing radiation by detecting the ionization events with a gas filled chamber, providing a proportional output signal

A

PROPORTIONAL COUNTER

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8
Q

It has the ability to distinguish between alpha & beta radiation

A

PROPORTIONAL COUNTER

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8
Q

It is used in the detectors arrays of CT imaging system.

A

SCINTILLATION DETECTION

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8
Q

Refers to a type of dosimeter that measures ionizing radiation by trapping energy in a crystalline material and releasing it as light upon heating.

A

THERMOLUMINESCENCE DOSIMETRY (TLD)

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9
Q

Identify the specific type of materials commonly used in TLDs, which are sensitive to radiation and capable of storing energy.

A

LITHIUM BORATE, LITHIUM FLUORIDE, CALCIUM SULFATE, CALCIUM FLUORIDE

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10
Q

A chart of curves from which one can estimate the output intensity of radiographic unit.

10
Q

It use as a personnel monitoring, stationary & area monitoring.

A

THERMOLUMINESCE DOSIMETRY (TLD)

10
Q

A type of dosimeter that measures ionizing radiation by trapping energy in a material and releasing it as light when stimulated by optical radiation.

A

OPTICALLY STIMULATED LUMINESCENCE DOSIMETRY (OSL)

10
Q

Material commonly used in OSL dosimeters, which is known for its sensitivity to ionizing radiation.

A

ALUMINUM OXIDE

10
Q

The radiation dose received by the skin at the point of entrance during a medical imaging procedure.

A

ENTRANCE SKIN DOSE (ESD)

11
Q

The measurement unit commonly used to express entrance skin dose in radiology.

11
Q

Average gonadal dose given to members of the population who are of childbearing age.

A

GENETICALLY SIGNIFICANT DOSE (GSD)

12
Q

Term that refers to the average dose of radiation received by the bone marrow from medical imaging procedures.

A

MEAN MARROW DOSE (MMD)

13
Q

1-5: ENUMERATE THE FIVE RADIATION DETECTION AND MEASURING DEVICES

A
  1. PHOTOGRAPHIC EMULSION
  2. GAS-FILLED DETECTORS
  3. SCINTILLATION DETECTION
  4. THERMOLUMINESCENCE DOSIMETRY (TLD)
  5. OPTICALLY STIMULATED LUMINESCENCE (OSL) DOSIMETRY
13
6-8: THREE TYPES OF GAS-FILLED DETECTORS
6. IONIZATION CHAMBER 7. PROPORTIONAL COUNTER 8. GEIGER-MULLER COUNTER
14
9-10: THE MATERIAL USED FOR SCINTILLATION DETECTION
9. CsI:TI 10. NaI:TI
15
11-14: MATERIAL USED FOR TLD
11. LITHIUM FLUORIDE 12. LITHIUM BORATE 13. CALCIUM FLUORIDE 14. CALCIUM SULFATE
16
15: MATERIAL USED FOR OSL
15. ALUMINUM OXIDE
17
16-18: THREE WAYS ESTIMATION OF PATIENT DOSE
16. ESE 17. MMD 18. GSD
18
19-24: ENUMERATE THE FIVE COUNTRY WITH THEIR GSD ESTIMATION
19. DENMARK - 220 mGyt 20. GREAT BRITAIN - 120 mGyt 21. JAPAN - 270 mGyt 22. NEW ZEALAND - 120 mGyt 23. SWEDEN - 720 mGyt 24. UNITED STATES - 200 mGyt