Radiation Detection and Measurement
(TLD/OSL/pocket dosimeter) Exam
Actual Questions and Answers 2026
TLDs look like a film badge; instead of having film inside, it contains
--
correct answer ✅lithium fluoride crystals (LiF)
in the TLD, the LiF crystals are heated and release energy in the
form of __ - which is then measured by a __ -
correct answer ✅visible light; photomultiplier tube
advantages of a TLD: (5) -
correct answer ✅tissue equivalent; must be worn for up to 3
months (can be worn for up to a year); can be reused; more
sensitive/accurate than film badge; not very sensitive to
heat/humidity
disadvantages of a TLD: (2) -
correct answer ✅must wait a few months for a dosimetry report;
expensive (2x the cost of a film badge)
the OSL contains __ as the radiation detector -
correct answer ✅aluminum oxide (Al3O3)
(TLD/OSL/pocket dosimeter) Exam
Actual Questions and Answers 2026
TLDs look like a film badge; instead of having film inside, it contains
--
correct answer ✅lithium fluoride crystals (LiF)
in the TLD, the LiF crystals are heated and release energy in the
form of __ - which is then measured by a __ -
correct answer ✅visible light; photomultiplier tube
advantages of a TLD: (5) -
correct answer ✅tissue equivalent; must be worn for up to 3
months (can be worn for up to a year); can be reused; more
sensitive/accurate than film badge; not very sensitive to
heat/humidity
disadvantages of a TLD: (2) -
correct answer ✅must wait a few months for a dosimetry report;
expensive (2x the cost of a film badge)
the OSL contains __ as the radiation detector -
correct answer ✅aluminum oxide (Al3O3)
