Radiation Physics Exam Bank
Course Introduction
Radiation Physics explores the fundamental principles underlying the production, properties, and interactions of ionizing and non-ionizing radiation with matter. The course covers topics such as radioactive decay processes, radiation sources, types of radiation (alpha, beta, gamma, X-rays), and key concepts in radiation dosimetry. Students will gain an understanding of the mechanisms of energy transfer, attenuation, and scattering as radiation passes through different materials. Emphasis is placed on applications in medical physics, nuclear energy, and radiation protection, as well as the instrumentation used for radiation detection and measurement. This course provides a solid foundation for further study or professional work in fields related to radiation science.
Recommended Textbook
Radiation Protection in Medical Radiography 7th Edition by Mary Alice
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14 Chapters
340 Verified Questions
340 Flashcards
Source URL: https://quizplus.com/study-set/1604
Page 2
Chapter 1: Introduction to Radiation Protection
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/31842
Sample Questions
Q1) The term as low as reasonable achievable (ALARA) is synonymous with the term:
A)background equivalent radiation time (BERT).
B)equivalent dose (EqD).
C)diagnostic efficacy.
D)optimization for radiation protection (ORP).
Answer: D
Q2) Typically,people are more willing to accept a risk if they perceive that the potential benefit to be obtained is:
A)greater than the risk involved.
B)equal to the risk involved.
C)less than the risk involved.
D)typically,people are not willing to accept risk no matter how great the benefit may be.
Answer: A
Q3) Which of the following is a method of explaining radiation to the public?
A)ALARA
B)BERT
C)ORP
D)Standardized dose reporting
Answer: B
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Page 3
Chapter 2: Radiation: Types, sources, and Doses Received
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/31843
Sample Questions
Q1) The amount of energy transferred to electrons by ionizing radiation is the basis of the concept of:
A)electromagnetic radiation.
B)nuclear power.
C)radioactive decay.
D)radiation dose.
Answer: D
Q2) When natural sources of ionizing radiation become increased because of accidental or deliberate human actions such as mining,they are referred to as:
A)artificial sources.
B)enhanced natural sources.
C)extraterrestrial sources.
D)manmade sources.
Answer: B
Q3) Of the two sources of ionizing radiation listed below,which source remains fairly constant from year to year?
A)Human-made
B)Natural
Answer: B
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Page 4
Chapter 3: Interaction of X-Radiation With Matter
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/31844
Sample Questions
Q1) The symbol Z indicates:
A)atomic number of an atom.
B)atomic weight of an atom.
C)fluorescent yield.
D)the number of vacancies in an atomic shell.
Answer: A
Q2) In photoelectric absorption to dislodge an inner-shell electron from its atomic orbit,the incoming x-ray photon must be able to transfer a quantity of energy:
A)less than the energy that binds the atom together.
B)10 times as great as the energy that binds the atom together.
C)as large as or larger than the amount of energy that binds the electron in its orbit.
D)equal to or greater than 1.022 MeV,regardless of the energy that binds the electron in its orbit.
Answer: C
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Chapter 4: Radiation Quantities and Units
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/31845
Sample Questions
Q1) Which of the following is the SI unit of electrical current?
A)Ampere
B)Coulomb per kilogram
C)Erg
D)Sievert
Q2) If a patient receiving x-ray therapy treatment receives a total dosage of 6000 rads,the dosage may be recorded as _____________ if the SI system is used.
A)12,000 Gy
B)6000 cGy
C)600 mGy
D)60 coulomb per kilogram
Q3) Which of the following units are not SI units?
1)Roentgens
2)Coulombs per kilogram,grays,Sieverts
3)Rads and rems
A)1 only
B)2 only
C)3 only
D)1 and 3 only
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Page 6
Chapter 5: Radiation Monitoring
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) The effective atomic number (Zeff) of lithium fluoride (LiF) is equal to:
A)5.9.
B)6.4.
C)7.0.
D)8.2.
Q2) Whenever the letter "M" appears under the current monitoring period or in the cumulative columns of a personnel monitoring report,it signifies that:
A)a mistake has been made in recording the equivalent dose.
B)an equivalent dose higher than the minimum measurable radiation quantity was recorded during that time.
C)an equivalent dose less than the minimum measurable radiation quantity was recorded during that time.
D)a maximal equivalent dose has been exceeded during that time.
Q3) The metal filters contained in a film badge personnel dosimeter are generally composed of which of the following materials?
A)Aluminum or copper
B)Aluminum or lead
C)Zinc or copper
D)Lead or zinc
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Page 7
Chapter 6: Overview of Cell Biology
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) What should the constant temperature of the human body be?
A)28° C
B)37° C
C)43° C
D)57° C
Q2) The cell components that contain the centrioles are the:
A)centrosomes.
B)Golgi apparatus and mitochondria.
C)lysosomes.
D)ribosomes.
Q3) Which of the following are compounds called purines?
1)Adenine and cytosine
2)Adenine and guanine
3)Adenine and thymine
A)1 only
B)2 only
C)3 only
D)1,2,and 3
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8
Chapter 7: Molecular and Cellular Radiation Biology
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) Which of the following tissues contain cells that do not divide?
1)Epithelial tissue
2)Muscle tissue
3)Nervous tissue in an adult
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
Q2) The radiosensitivity of ova:
A)remains constant throughout the lifetime of the germ cell.
B)varies considerably throughout the lifetime of the germ cell.
C)varies slightly throughout the lifetime of the germ cell.
D)is insignificant because the germ cell is not radiosensitive.
Q3) Which of the following humans is most radiosensitive?
A)A mature adult
B)An embryo or fetus during the first trimester of pregnancy
C)A fetus during the third trimester of gestation
D)A 5-year-old child
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9
Chapter 8: Early Deterministic Radiation Effects on Organ Systems
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) A decrease in the number of neutrophils can be caused by a radiation dose of:
A)0.1 Gy.
B)0.2 Gy.
C)0.3 Gy.
D)0.5 Gy.
Q2) A single absorbed dose of 2 Gyt can cause a radiation-induced skin erythema within:
A)1 hour after irradiation.
B)6 hours after irradiation.
C)12 hours after irradiation.
D)24 to 48 hours after irradiation.
Q3) Grenz rays were once used to treat and cure:
A)Acute radiation syndrome.
B)cancer.
C)lupus disease.
D)skin diseases such as ringworm.
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10
Chapter 9: Late Deterministic and Stochastic Radiation
Effects on Organ Systems
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) In which of the following human populations is the risk for causing a radiation-induced cancer not directly measurable?
1)All patients in diagnostic radiology subjected to a radiation dose below 0.1 Sievert
2)Chernobyl radiation accident victims living in contaminated villages
3)Japanese atomic bomb survivors
A)1 only
B)2 only
C)3 only
D)2 and 3 only
Q2) Which of the following groups of people exposed to ionizing radiation provide proof that low-level radiation exposure produces late effects?
A)135,000 evacuees from the 1986 nuclear power plant accident at Chernobyl,Ukraine
B)Japanese atomic bomb survivors
C)Children of the Marshall Islanders who were inadvertently subjected to fallout during the atomic bomb test in 1954
D)None of the above
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11
Chapter 10: Dose Limits for Exposure to Ionizing Radiation
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Sample Questions
Q1) The responsibility for maintaining radiation monitoring records for all personnel and for providing counseling for individuals who receive monitor readings in excess of allowable limits belongs to the:
A)director of human resources of a health care facility.
B)designated radiation safety officer of a health care facility.
C)hospital administrator.
D)radiologic technologist in charge of quality control.
Q2) The ALARA concept presents an extremely conservative model with respect to the relationship between:
A)health care education and radiation research.
B)ionizing and nonionizing radiation.
C)ionizing radiation and potential risk.
D)radiation dose and biologic response.
Q3) Determine the cumulative effective dose (CumEfD) limit to the whole body of an occupationally exposed person who is 46 years old.
A)4.6 mSv
B)46 mSv
C)460 mSv
D)4600 mSv
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Page 12
Chapter 11: Equipment Design for Radiation Protection
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) A radiographer uses a high-speed,rare-earth screen-film system with optimal technical exposure factors to obtain PA and lateral radiographs of a 2-year-old child's chest.To maximize reduction of radiation exposure to the patient following adequate immobilization,the radiographer should:
A)collimate the x-ray beam so that it is only slightly larger than the margins of the image receptor and shield the child's reproductive organs.
B)collimate the x-ray beam so that it is no larger than the margins of the image receptor and shield the child's reproductive organs.
C)collimate the x-ray beam so that it is smaller than the margins of the image receptor and shield the child's reproductive organs.
D)collimate the x-ray beam so that it is smaller than the margins of the image receptor and not shield the child's reproductive organs.
Q2) Which of the following is not an x-ray beam limitation device?
A)Aperture diaphragm
B)Collimator
C)Filter
D)Extension cylinder
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Page 13
Chapter 12: Management of Patient Radiation Dose During Diagnostic X-Ray Procedures
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) During a radiographic examination,which of the following combinations of technical exposure factors and filtration reduce patient radiation dose?
A)Lower kVp,higher mAs,decreased filtration
B)Higher kVp,lower mAs,increased filtration
C)Higher kVp,higher mAs,decreased filtration
D)Lower kVp,lower mAs,increased filtration
Q2) Poorly processed images on radiographic film will:
A)continue to have archival quality.
B)deteriorate over time.
C)lose only a minimal amount of archival quality over a 10-year period.
D)remain in their original condition.
Q3) During mammography,axillary projections should be done only on request of the:
A)ordering physician.
B)patient.
C)radiologist.
D)technologist performing the examination.
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Chapter 13: Management of Imaging Personnel Radiation
Dose During Diagnostic X-Ray Procedures
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/31854
Sample Questions
Q1) Protective eyeglasses with optically clear lenses should contain a minimal lead equivalent protection of:
A)0.15 mm.
B)0.25 mm.
C)0.35 mm.
D)0.50 mm.
Q2) Which part(s) of a diagnostic x-ray unit should a radiographer avoid touching while a radiographic exposure is in progress?
A)Control panel
B)Exposure switch
C)Kilovoltage control on the control panel
D)Tube housing,collimator,and high-tension cables
Q3) If the intensity of the x-ray beam is inversely proportional to the square of the distance from the source,how does the intensity of the x-ray beam change when the distance from the source of radiation and a measurement point is tripled?
A)It increases by a factor of 3 at the new distance.
B)It increases by a factor of 9 at the new distance.
C)It decreases by a factor of 9 at the new distance.
D)It decreases by a factor of 3 at the new distance.
Page 15
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Chapter 14: Radioisotopes and Radiation Protection
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15 Verified Questions
15 Flashcards
Source URL: https://quizplus.com/quiz/31855
Sample Questions
Q1) Iodine-125 (¹² I) in the form of titanium-encapsulated cylindrical seeds has been used quite extensively within the past decade to give a tumoricidal radiation equivalent dose for:
A)malignant brain tumors.
B)malignant breast tumors.
C)malignant lung tumors.
D)prostate cancers that are confined within the prostate gland.
Q2) Radioactive material that is attached to or associated with dust particles or in liquid form on various surfaces defines the term:
A)radioactive contamination.
B)radioactive dispersal device.
C)radioactive fallout.
D)radioactive syndrome.
Q3) Tellurium-125 (¹² Te) has:
A)125 protons and 125 neutrons.
B)75 protons and 63 neutrons.
C)52 protons and 73 neutrons.
D)45 protons and 58 neutrons.
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