For simple applications, such as the calibration of a charged particle detector, a multi-MeV proton generator may be preferable to cyclotrons or electrostatic accelerators such as Van de Graaff generator. Thus, a proton generating system, consisting of an 18 GHz superconducting (SC)-ECR ion source and a deuterated polyethylene target, was developed at the Research Center for Nuclear Physics at Osaka University. A 3He2+ beam of 400 eμA was generated by the SC-ECR ion source with the acceleration voltage of 20 kV in an experiment that utilized the fusion reaction 3He + deuteron (D) → proton(P) + 4He. Protons with energies of the order of several MeV were successfully generated at 3.67 Hz at the atmosphere side of the target in the experimental setup, using a novel target base with a thin aluminum window.

中文翻译：

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在核物理研究中心开发使用 3He 离子源的 MeV 质子发生器

对于简单的应用，例如带电粒子探测器的校准，多 MeV 质子发生器可能比回旋加速器或静电加速器（如范德格拉夫发生器）更可取。因此，大阪大学核物理研究中心开发了由 18 GHz 超导 (SC)-ECR 离子源和氘代聚乙烯靶组成的质子生成系统。在利用聚变反应 3He + 氘核 (D) → 质子 (P) + 4He 的实验中，SC-ECR 离子源以 20 kV 的加速电压产生 400 eμA 的 3He2+ 束。在实验装置中，使用具有薄铝窗的新型靶基，在靶的大气侧以 3.67 Hz 的频率成功产生了能量为几 MeV 数量级的质子。