Development Research of Supermirror Neutron Turbine for an Intense Ultracold Neutron Source at Accelerator Facilities

加速器装置强超冷中子源超镜中子涡轮机的研制

• 批准号: 10358011
• 负责人: UTSURO Masahiko
• 金额: $ 9.47万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10358011/
• 关键词: Reflection feather; spinning machine; palse neutron; Ultracold Neutron Source; Simutaneous control; neutron deceleration machine; super mirror; Ultracold neutron; 中性子鏡; 多層膜鏡; 反射率; 中性子タービン

The present Grant-in-Aid for Scientific Research was given for the development research on a supermirror neurtron turbine for an intense ultracold neutron source at accelerator facilities Conventional ultracold neutron sources were applied for steady state sources by making use of neutron reflection mirrors rotating at a constant speed, named "Neutron turbine", or for pulsed neutron sources by making use of Bragg reflections with crystal blades rotating at a constant speed, named "Doppler shifter", which is capable of functioning only for a certain velocity of incident neutrons. The present development was carried out for realizing an unique rotating device having a special performence of continuously working to convert the wide velocity region of incident neutrons arriving at the time-of-flight distribution to the device located at a distance from the pulsed source.In the course of the present study, a novel principle and the new mechanism solving the required difficult characteristics were invented from the joint works of the head investigator with a collaborator of the mechanical design specialist. Thus, the special performence of continuously working to convert the velocity of incident neutrons arriving at the time-of-flight distribution into the device located at a distance from the pulsed source was successfully realized.

目前为科学研究提供了有关超级神经涡轮机的开发研究的目前赠款恒定的速度，称为“中子涡轮”，或用于脉冲中子源的速度，通过使用晶体叶片以恒定速度旋转的晶体反射，称为“多普勒变速杆”，该反射能够仅适用于一定速度的入射中子。目前的开发是为了实现独特的旋转设备，具有特殊表现的连续工作，以转换在飞行时间分布到距离脉冲源距离处的设备的宽速度区域。本研究的过程，一种新的原则和新的机制解决所需的困难特征是由调查员与机械设计专家的合作者的联合作品发明的。因此，在飞行时间分布到达脉冲源距离的设备中，连续工作的特殊表现已成功地转换为到达的入射中子的速度。

项目成果

M.Utsuro et al.: "Experiment on the subcritical transmission probability of very cold neutrons" to be published in Ann Rep.ILL-1988. (1999)

M.Utsuro 等人：“极冷中子的亚临界传输概率实验”将在 Ann Rep.ILL-1988 上发表。