Dosimetry of densely ionising radiation with three LiF phosphors for space applications.
A new method of thermoluminescence dosimetry of densely ionising radiation based on the ratio of different efficiency-LET functions of three thermoluminescent detectors (TLDs) has been developed. The applied TLD types are: MTS-7 ((7)LiF:Mg,Ti), MCP-7 ((7)LiF:Mg,Cu,P) and MTT-7 (a newly developed (7)LiF:Mg,Ti with modified activator composition and increased response to high-LET radiation). The tests of this method, performed with high-energy ion beams at the HIMAC accelerator within the ICCHIBAN project, proved that good agreement with the true dose values may be achieved even in very complicated mixed fields. The proposed method will be applied for analysis of several thousand TLDs used for the determination of organ doses in an anthropomorphic phantom orbiting outside the International Space Station within the MATROSHKA experiment.
Bilski
P
P
Institute of Nuclear Physics, Radzikowskiego 152, 31-342 Kraków, Poland. pawel.bilski@ifj.edu.pl
D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005459:Fluorides / Q000737:chemistry* / Q000528:radiation effects*; D018020:Lithium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D008422:Materials Testing; D016273:Occupational Exposure / Q000032:analysis*; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods*; D011839:Radiation, Ionizing; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013026:Space Flight / Q000295:instrumentation*; D013499:Surface Properties; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods
D018020:Lithium Compounds; C027651:lithium fluoride; D005459:Fluorides