TEST BANK For Radiation Protection in Medical
Radiography Chapter 5 | 2026 Update | Full
Study Guide with Questions and Answers | 100%
Correct | Grade A+
‣ Three different filters are incorporated into the detector packet of the optically
stimulated luminescence dosimeter. Of what are
these filters made?
a. Aluminum, tin, and copper
b. Aluminum, tin, and lead
c. Zinc, copper, and barium
d. Zinc, copper, and lead -✓✓A
‣ What is the maximum period of time that a thermoluminescent dosimeter (TLD)
may be worn as a personnel device?
a. 1 hour
b. 1 week
c. 1 month
d. 3 months -✓✓D
‣ What do optically stimulated luminescence dosimeters, thermoluminescent
dosimeters, pocket ionization chambers, and digital
ionization dosimeters have in common?
a. These devices are all used for area monitoring.
b. These devices all use the same sensing material to detect ionizing radiation.
c. These devices are all used for personnel monitoring.
d. Each of these devices can only be used for personnel monitoring for a maximum
of 6 months. -✓✓C
‣ Which of the following instruments is called a cutie pie?
a. Geiger-Muller survey meter
b. Ionization chamber-type survey meter
c. Optically stimulated luminescence dosimeter
d. Proportional counter -✓✓B
‣ Which of the following instruments generally has a check source of a weak, long-
lived radioisotope located on one side of its
, external surface to verify its constancy daily?
a. Pocket dosimeter
b. Proportional counter
c. Geiger-Muller survey meter
d. Ionization chamber-type survey meter -✓✓C
‣ Which of the following devices contains an aluminum oxide detector?
a. Digital ionization dosimeter
b. Optically stimulated luminescence dosimeter
c. Pocket ionization chamber
d. Thermoluminescent dosimeter -✓✓B
‣ When the sensing crystals contained in the thermoluminescent dosimeter are
irradiated, which of the following occurs?
a. The protons in the crystalline lattice structure of the LiF molecule absorb energy
and are excited to a higher energy level or bands.
b. The neutrons in the crystalline lattice structure of the LiF molecule absorb
energy
and are excited to a higher energy level or bands.
c. Some of the electrons in the crystalline lattice structure of the LiF molecule
absorb energy and are excited to higher energy levels or bands.
d. The electrons freed from the LiF molecule are trapped at a lower energy level or
bands. -✓✓C
‣ Because of the OSL dosimeter's sensitivity down to as low as 10 μSv for x-ray
and gamma ray photons in the energy range 5 keV
to 40 MeV, it is an excellent and practical monitoring device for
a. employees working in high-radiation environments and for non-pregnant
workers.
b. employees working in low-radiation environments and for pregnant workers.
c. members of the general public not occupationally employed.
d. Pregnant employees working in high-radiation environments. -✓✓B
‣ The effective atomic number (Zeff) of lithium fluoride (LiF) is equal to
a. 5.9.
b. 6.4.
c. 7.0.
d. 8.2. -✓✓D
Radiography Chapter 5 | 2026 Update | Full
Study Guide with Questions and Answers | 100%
Correct | Grade A+
‣ Three different filters are incorporated into the detector packet of the optically
stimulated luminescence dosimeter. Of what are
these filters made?
a. Aluminum, tin, and copper
b. Aluminum, tin, and lead
c. Zinc, copper, and barium
d. Zinc, copper, and lead -✓✓A
‣ What is the maximum period of time that a thermoluminescent dosimeter (TLD)
may be worn as a personnel device?
a. 1 hour
b. 1 week
c. 1 month
d. 3 months -✓✓D
‣ What do optically stimulated luminescence dosimeters, thermoluminescent
dosimeters, pocket ionization chambers, and digital
ionization dosimeters have in common?
a. These devices are all used for area monitoring.
b. These devices all use the same sensing material to detect ionizing radiation.
c. These devices are all used for personnel monitoring.
d. Each of these devices can only be used for personnel monitoring for a maximum
of 6 months. -✓✓C
‣ Which of the following instruments is called a cutie pie?
a. Geiger-Muller survey meter
b. Ionization chamber-type survey meter
c. Optically stimulated luminescence dosimeter
d. Proportional counter -✓✓B
‣ Which of the following instruments generally has a check source of a weak, long-
lived radioisotope located on one side of its
, external surface to verify its constancy daily?
a. Pocket dosimeter
b. Proportional counter
c. Geiger-Muller survey meter
d. Ionization chamber-type survey meter -✓✓C
‣ Which of the following devices contains an aluminum oxide detector?
a. Digital ionization dosimeter
b. Optically stimulated luminescence dosimeter
c. Pocket ionization chamber
d. Thermoluminescent dosimeter -✓✓B
‣ When the sensing crystals contained in the thermoluminescent dosimeter are
irradiated, which of the following occurs?
a. The protons in the crystalline lattice structure of the LiF molecule absorb energy
and are excited to a higher energy level or bands.
b. The neutrons in the crystalline lattice structure of the LiF molecule absorb
energy
and are excited to a higher energy level or bands.
c. Some of the electrons in the crystalline lattice structure of the LiF molecule
absorb energy and are excited to higher energy levels or bands.
d. The electrons freed from the LiF molecule are trapped at a lower energy level or
bands. -✓✓C
‣ Because of the OSL dosimeter's sensitivity down to as low as 10 μSv for x-ray
and gamma ray photons in the energy range 5 keV
to 40 MeV, it is an excellent and practical monitoring device for
a. employees working in high-radiation environments and for non-pregnant
workers.
b. employees working in low-radiation environments and for pregnant workers.
c. members of the general public not occupationally employed.
d. Pregnant employees working in high-radiation environments. -✓✓B
‣ The effective atomic number (Zeff) of lithium fluoride (LiF) is equal to
a. 5.9.
b. 6.4.
c. 7.0.
d. 8.2. -✓✓D
