IBIC2012 - List of Authors (Fukuda, S.)

Paper	Title	Page
MOPB54	Development of the New Type MLIC with PMMA Plates and Graphite Electrodes	194
	S. Iwata, C. Kobayashi, N.S. Shinozaki, A. Takubo AEC, Chiba, Japan S. Fukuda NIRS, Chiba-shi, Japan T. Kanai Gunma University, Heavy-Ion Medical Research Center, Maebashi-Gunma, Japan
	The MLIC (Multi-Layer Ionization Chamber) that has a lot of ionization chambers stacked in the depth direction is a useful detector for measuring the depth dose distribution (DDD). By using the MLIC, the measurement time and the amount of beam for dosimetry are drastically decreased. In HIMAC (Heavy-Ion Medical Accelerator in Chiba), the MLIC has been effectively used for QA (Quality Assurance) measurement of heavy-ion therapeutic beam since 2002. We are developing a new type MLIC that has electrodes made of graphite on the surface of the polymethyl-methacrylate (PMMA) plates for particle therapy. The purpose is to obtain the same results as the DDD in water. We will report on the progress of the development.

Paper

Title

Page

Development of the New Type MLIC with PMMA Plates and Graphite Electrodes

194

S. Iwata, C. Kobayashi, N.S. Shinozaki, A. Takubo
AEC, Chiba, Japan
S. Fukuda
NIRS, Chiba-shi, Japan
T. Kanai
Gunma University, Heavy-Ion Medical Research Center, Maebashi-Gunma, Japan

The MLIC (Multi-Layer Ionization Chamber) that has a lot of ionization chambers stacked in the depth direction is a useful detector for measuring the depth dose distribution (DDD). By using the MLIC, the measurement time and the amount of beam for dosimetry are drastically decreased. In HIMAC (Heavy-Ion Medical Accelerator in Chiba), the MLIC has been effectively used for QA (Quality Assurance) measurement of heavy-ion therapeutic beam since 2002. We are developing a new type MLIC that has electrodes made of graphite on the surface of the polymethyl-methacrylate (PMMA) plates for particle therapy. The purpose is to obtain the same results as the DDD in water. We will report on the progress of the development.