在FRS-Cave M生产和分离用于子疗法的正电子发射器
E Haettner1, H Geissel1,2, B Franczak1
1GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291, Darmstadt, Germany.
概括
碎片分离器 (FRS) 现在为医学洞穴中的生物医学研究提供正子发射15O离子. 这一进步支持使用外来粒子束的子疗法发展.
科学领域:
- 核物理 核物理 核物理
- 生物物理学的生物物理.
- 医学物理 医学物理
背景情况:
- 在GSI的碎片分离器 (FRS) 是一个关键的仪器,用于实验短暂的奇异粒子束.
- FRS的一个专门分支连接到生物医学洞穴 (Cave M) 进行专业研究.
- 越来越多的人对使用正电子发射同位素进行子疗法感兴趣.
研究的目的:
- 为FRS-Cave M分支提供一个新的离子光学模式.
- 报告这个FRS-Cave M分支的调试结果.
- 为了使正子发射15O离子能够被送到医疗洞穴,用于生物医学应用.
主要方法:
- 在碎片分离器 (FRS) 中使用新的离子光学模式.
- 投入使用FRS-Cave M分支用于光束传输.
- 在同步机SIS18中加速初级16O离子以产生15O碎片.
主要成果:
- FRS-Cave M分支公司成功获得了150个离子交付的委托.
- 第一次,正子发射的15O离子被传输到医疗洞穴.
- 每个主要16O离子的整体转换效率为2.9±0.2×10^-4 15O碎片.
结论:
- FRS-Cave M分支已经投入使用,能够为生物医学研究提供150束光束.
- 这一发展是利用异国情调粒子束在子疗法中的重要一步.
- 实现的转换效率证明了这种方法对未来应用的可行性.
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