P1254413595qdUIt

1
Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman

• Most common personnel dosimeter used at Fermilab.

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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman

• Most common personnel dosimeter used at Fermilab.
• Provides a legal record of the whole body
  exposure received.

4
Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman

• Most common personnel dosimeter used at Fermilab.
• Provides a legal record of the whole body
  exposure received.
• Consists of chips that store energy to which it
  has been exposed.

5
Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman

• Most common personnel dosimeter used at Fermilab.
• Provides a legal record of the whole body
  exposure received.
• Consists of chips that store energy to which it
  has been exposed.
• When heated, the stored energy is released as
  light.

6
Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman

• Most common personnel dosimeter used at Fermilab.
• Provides a legal record of the whole body
  exposure received.
• Consists of chips that store energy to which it
  has been exposed.
• When heated, the stored energy is released as
  light.
• The amount of light is proportional to the
  exposure received.

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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
TLD Chips
TLD Holder
Filter Holder
The badges used at Fermilab contain four TLD
Chips.
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Thermal Luminescent Dosimetry BadgesUsed at
FermilabBy Butch Hartman
TLD Chips
TLD Holder
Filter Holder
The badges used at Fermilab contain four TLD
Chips.
9
Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
TLD Chips
TLD Holder
Filter Holder
The badges used at Fermilab contain four TLD
Chips.
10
Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
TLD Chips
TLD Holder
Filter Holder
The badges used at Fermilab contain four TLD
Chips.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
TLD Chips
TLD Holder
Filter Holder
The badges used at Fermilab contain four TLD
Chips.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
TLD Chips
TLD Holder
Filter Holder
Above each TLD Chip is a different filter.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
TLD Chips
Brass
TLD Holder
Filter Holder
One made of Brass,
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
Aluminum
TLD Chips
Brass
TLD Holder
Filter Holder
one of Aluminum,
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
Plastic
Aluminum
TLD Chips
Brass
TLD Holder
Filter Holder
one of Plastic,
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
Plastic
Aluminum
TLD Chips
Brass
Kapton Tape
TLD Holder
Filter Holder
and the last of Kapton tape.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
Plastic
Aluminum
TLD Chips
Brass
Kapton Tape
TLD Holder
Filter Holder
The filters are used to determine the
characteristics of the radiation exposure.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
Identification Number
TLD Holder
Filter Holder
Each TLD holder contains a unique number.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
Identification Number
TLD Holder
Filter Holder
The number can be referenced back to the
individual using that badge.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
0307466T
N OCT 1,1993
F1
Track-Etch Foil Holder
FERMI LAB
00707
12345
Track-Etch Foil
0307466T
Another part of the badge is called the Plastic
Track-Etch Foil.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
0307466T
Identification Number
N OCT 1,1993
F1
Track-Etch Foil Holder
FERMI LAB
00707
12345
0307466T
Once again, the identification number is located
on each piece of the badge.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
0307466T
N OCT 1,1993
F1
Track-Etch Foil Holder
FERMI LAB
00707
12345
Track-Etch Foil
0307466T
Track-Etch Foils are used to monitor neutron
exposure.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
0307466T
N OCT 1,1993
F1
Track-Etch Foil Holder
FERMI LAB
00707
12345
Track-Etch Foil
0307466T
The neutrons make holes in the plastic which
become visible after processing them.
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Thermal Luminescent Dosimetry BadgesUsed at
Fermilab By Butch Hartman
0307466T
N OCT 1,1993
F1
Track-Etch Foil Holder
FERMI LAB
00707
12345
Track-Etch Foil
0307466T
The number of holes produced is proportional to
the neutron exposure received.