@misc{oai:repo.qst.go.jp:00066824,
 author = {Chang, Weishan and Koba, Yusuke and Shimomura, Risa and Shinsho, Kiyomitsu and Matsumoto, Kazuki and Ushiba, Hiroki and Ando, Takayuki and 張 維珊 and 古場 裕介},
 month = {Jun},
 note = {Introduction: Recent research has shown alumina-based ceramics TLD (A8, Chibacera Mfg. Co.) is easy to handle and owns a less LET-dependent glow peak which is potential for measurement in heavy charged particle (HCP) therapy beam.   However, the sensitivity of is not stable enough for implantation in radiotherapy field. Therefore, a TLD made by chromium-doped alumina (A10, Chibacera Mfg. Co.)  was developed to improve the sensitivity.
Purpose: This study aims to provide basic dosimetric properties of A10.  
Material and methods: To obtain the thermal luminescence (TL) efficiency, A10 were irradiated using a 160 MeV/u proton beam, a 150 MeV helium beam, a 290 MeV/u carbon beam, a 400 MeV/u Neon beam and a 500 MeV/u Argon beam.  TL efficiency was normalized by a 6MV X-ray.  A10 was heated to 400 oC at a heating rate of 0.2 degree per second and the glow curves were read by an in-house developed readout system.   To improve the accuracy, the timeline of the readout procedure was consistent for each experiment in the present study.
Results: The dose to response curve of A10 was linear in the range of 0.5-5 Gy for each beam but the slope was different to each other.  The TL efficiency of A10 increased from 0.84 to 1.18 at LET range from 0.5 keV/μm to 13.2 keV/μm and decreased to 0.6 when keV/μm was 197 keV/μm., World Congress on Medical Physics & Biomedical Engineering},
 title = {Thermal luminescence efficiency of  Al2O3:Cr ceramic to heavy charged particle},
 year = {2018}
}