Responses of TLD Mg2SiO4:Tb and radiophotoluminescent glass to heavy charged particles and space radiation.
The LET dependences of thermoluminescence dosimeters of Mg2SiO4:Tb (TLMS) and radiophotoluminescent glass dosemeters (RPLG) were examined using high energy, heavy  ion beams. TLMS kept its efficiency below 10 keV micrometer-1 and decreased almost linearly with the logarithm of LET for higher LET particles. The efficiency of RPLG decreased more gradually than TLMS although its reduction was observed at a lower LET region around 0.5 keV micrometer-1. Accordingly, the ratio of TLMS to RPLG valued showed a maximum peak around 20 keV micrometer-1 of LET. The results obtained with both dosemeters in the 40 day space mission in the Russian space station Mir showed that not only dose level but also radiation quality were varying considerable in the Mir Core Module.
Yasuda
H
H
National Institute of Radiological Sciences, Chiba, Japan.
Fujitaka
K
K
D003359:Cosmic Radiation; D017357:Cyclotrons; D005069:Evaluation Studies as Topic; D005898:Glass; D020450:Heavy Ions; D018499:Linear Energy Transfer; D017633:Magnesium Silicates; D011834:Radiation Monitoring / Q000295:instrumentation*; D013026:Space Flight / Q000295:instrumentation* / Q000379:methods; D018531:Spacecraft / Q000295:instrumentation; D017356:Synchrotrons; D013819:Thermoluminescent Dosimetry; D014893:Weightlessness
D017633:Magnesium Silicates