Thermoluminescent Dosimetry Exam
Actual Questions and Answers 2026
Define thermoluminescence -
correct answer ✅Release of light in a crystalline material that is
heated at a constant rate. Light is proportional to the amount of
radiation the crystal is exposed to. Once light is produced, previous
radiation of material is erased.
What happens to radiation history in the crystalline structure when
light is produced? -
correct answer ✅The radiation history is erased
When the material is irradiated, what happens to some of the
electrons in the valence band? -
correct answer ✅If they receive sufficient energy, they can be
raised to the conduction band.
What is a positive hole? -
correct answer ✅the vacancy created in the valence band from an
electron with sufficient energy to break free of their individual
atom
When is a system considered to be metastable? -
correct answer ✅When it is in equilibrium but is susceptible to fall
into lower-energy states with only slight interactions.
, Thermoluminescent Dosimetry Exam
Actual Questions and Answers 2026
What is phosphorescence? -
correct answer ✅the emission of light when electron
What are the advantages of TLD? -
correct answer ✅Small size, retain signal, small sample size, saves
beam on time, no displacement of measurement
What does AH stand in chemicals? -
correct answer ✅alkali halide
What is popular dosimetry material for TLDs? -
correct answer ✅Lithium fluoride (LiF)
What are the physicals forms of TLDs? -
correct answer ✅Loose powder, encapsulated powder, solid
crystals, extruded rods, hot pressed chips, impregnated teflon discs
What are characteristics of a good thermoluminescence material? -
correct answer ✅affordable, reproducible, sensitive to small doses
of radiation, malleable, nontoxic, desirable light spectrum,
availability
Actual Questions and Answers 2026
Define thermoluminescence -
correct answer ✅Release of light in a crystalline material that is
heated at a constant rate. Light is proportional to the amount of
radiation the crystal is exposed to. Once light is produced, previous
radiation of material is erased.
What happens to radiation history in the crystalline structure when
light is produced? -
correct answer ✅The radiation history is erased
When the material is irradiated, what happens to some of the
electrons in the valence band? -
correct answer ✅If they receive sufficient energy, they can be
raised to the conduction band.
What is a positive hole? -
correct answer ✅the vacancy created in the valence band from an
electron with sufficient energy to break free of their individual
atom
When is a system considered to be metastable? -
correct answer ✅When it is in equilibrium but is susceptible to fall
into lower-energy states with only slight interactions.
, Thermoluminescent Dosimetry Exam
Actual Questions and Answers 2026
What is phosphorescence? -
correct answer ✅the emission of light when electron
What are the advantages of TLD? -
correct answer ✅Small size, retain signal, small sample size, saves
beam on time, no displacement of measurement
What does AH stand in chemicals? -
correct answer ✅alkali halide
What is popular dosimetry material for TLDs? -
correct answer ✅Lithium fluoride (LiF)
What are the physicals forms of TLDs? -
correct answer ✅Loose powder, encapsulated powder, solid
crystals, extruded rods, hot pressed chips, impregnated teflon discs
What are characteristics of a good thermoluminescence material? -
correct answer ✅affordable, reproducible, sensitive to small doses
of radiation, malleable, nontoxic, desirable light spectrum,
availability
