群馬大学_重粒子線医学研究センター_英語版
  • 文字サイズ変更
  • 文字サイズ変更_小
  • 文字サイズ変更_中
  • 文字サイズ変更_大

Outline of the system

Outline of the system

Ion species Carbon
Penetrating range 25 cm in tissue (400 MeV/u)
Field size 15 cm x 15 cm (maximum)
Dose rate 5 GyE/min (1 x 109 pps)
Treatment room 3 treatment rooms with 4 irradiation (horizontal, horizontal and vertical, vertical) ports
Experiment room 1 room with 1 (vertical) port for the development of an advanced scanning technique for small targets

Accelerator design

Ion source Type ECR (electron cyclotron resonance) x 1
Magnet all permanent type
Frequency around 10 GHz (adjustable)
q/A ≥ 1/3 (C4+)
Linear Accelerator Type RFQ and DTL with an APF
(alternating phase focusing) technique
Frequency 200 MHz
Energy 600 keV/u (RFQ)、4.03 MeV/u (DTL)
Synchrotron Lattice FODO
Circumference
Injection
63 m  multi turn (effectively 11-14 turns)
Extraction Slow extraction
Energy 140 - 400 MeV/u
RF 0.90 - 6.97 MHz, 2.0 kV max.