Thermoluminescence dosimetry of a thermal neutron field and comparison with Monte Carlo calculations.
The characteristics of thermoluminescence dosemeters (TLDs) regarding the determination of photon and neutron absorbed doses were investigated in a thermal neutron beam. Harshaw TLD-100 (LiF:Mg,Ti) and TLD-700 (7LiF:Mg,Ti) were compared with similar materials from Solid Dosimetric Detector and Method Laboratory (People's Republic of China). Harshaw TLD-700H (7LiF:Mg,Cu,P) and aluminium oxide (Al2O3:Mg,Y) from Hungary were also considered for photon dose measurement. The neutron sensitivity of the investigated materials was measured and found to be consistent with values reported by other authors. A comparison was made between the TL dose measurements and results obtained via conventional methods. An agreement within 20% was obtained, which demonstrates the ability of TLD for measuring neutron and photon doses in a mixed field, using careful calibration procedures and determining the neutron sensitivity for the usage conditions.
Fernandes
A C
AC
Instituto Tecnológico e Nuclear, Estrada Nacional 10, P-2686-953 Sacavém, Portugal. anafer@itn.mces.pt
Santos
J P
JP
Kling
A
A
Marques
J G
JG
Gonçalves
I C
IC
Carvalho
A Ferro
AF
Santos
L
L
Cardoso
J
J
Osvay
M
M
D000537:Aluminum Oxide / Q000528:radiation effects; D003198:Computer Simulation; D003300:Copper / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D005459:Fluorides / Q000528:radiation effects; D006358:Hot Temperature; D018020:Lithium Compounds / Q000528:radiation effects; D008274:Magnesium / Q000528:radiation effects; D008962:Models, Theoretical; D009010:Monte Carlo Method; D009502:Neutrons; D009688:Nuclear Reactors; D010758:Phosphorus / Q000528:radiation effects; D017785:Photons; D012680:Sensitivity and Specificity; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation; D014025:Titanium / Q000528:radiation effects; D015019:Yttrium / Q000528:radiation effects
D018020:Lithium Compounds; C027651:lithium fluoride; D010758:Phosphorus; D015019:Yttrium; D003300:Copper; D014025:Titanium; D008274:Magnesium; D000537:Aluminum Oxide; D005459:Fluorides