Reproducibility of TL measurements in a mixed field of thermal neutrons and photons.
The reproducibility of measurements performed with GR-100 (LiF:Mg,Ti) from the Solid Dosimetric Detector and Method Laboratory (DML) China, GR-107 (7LiF:Mg,Ti, DML), TLD-700H (7LiF:Mg.Cu,P, Harshaw) and Al2O3:Mg,Y (Hungary) in photon and mixed photon-neutron fields was investigated. Mixed-field irradiations were performed in a thermal neutron field generated at a nuclear reactor. GR-100 sensitivity decreased after mixed-field irradiations, while no significant change was found for the other materials. Using GR-100 for the dosimetry of mixed and high-intensity fields requires careful procedures.
Fernandes
A C
AC
Portuguese Research Reactor, Nuclear and Technological Institute, Sacavém. anafer@itn.pt
Gonçalves
I C
IC
Ferro Carvalho
A
A
Santos
J
J
Cardoso
J
J
Santos
L
L
Osvay
M
M
D000537:Aluminum Oxide; D002138:Calibration; D003037:Cobalt Radioisotopes; D003300:Copper; D005459:Fluorides; D018020:Lithium Compounds; D008274:Magnesium; D009502:Neutrons; D010758:Phosphorus; D017785:Photons; D015203:Reproducibility of Results; D013816:Thermodynamics; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation / Q000379:methods / Q000592:standards*; D014025:Titanium; D015019:Yttrium
D003037:Cobalt Radioisotopes; D018020:Lithium Compounds; C027651:lithium fluoride; D010758:Phosphorus; D015019:Yttrium; D003300:Copper; D014025:Titanium; D008274:Magnesium; D000537:Aluminum Oxide; D005459:Fluorides