Preparation and Applications of Neutron Storage Bottle with Ultrafine Polished Metal Mirrors

超细抛光金属镜中子储存瓶的制备及应用

基本信息

批准号：
08558048
负责人：
UTSURO Masahiko
金额：
$ 1.66万
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：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

项目摘要

1.An ultracold neutron storage bottle was designed with optimization for the studies on physical propeties of neutron beta decay. A decay particle spectrometer was developed and the characteristics were clarified. These results were published in J.Phys.Soc.Japan, Suppl.A.2.In order to prepare the best storage bottle for neutron decay experiments, the highest technologies of metal surface treatments were studied on thediamond surface working and the electro-chemical surface polishing.3.As the results, the diamond surface working remains surface structure of working patters and not applicable to hard materials such as stainless steel, while the electro-chemical surface polishing is applicable to ultra-high precision polishing on a large surface area of hard materials. These developments were reported in KURRI Progress Report 1996 and the Scientific Meeting in the Research Reactor Institute.4.A new important approach was developed on the theoretical expression of the total reflection of bottle mirrors, and the approach was reported in KURRI-KR-14(1997).5.According to these research developments, high quality stainless steel mirrors were prepared by the electro-chemical ultra-high treatments. The meaured results of the reflectivity studies gave informations on the best combination of the electic and chemical polishing processe. The results of these studies were reported on a publication "Hamon" 7(1997).6.Based on the results of these studies, numerical analyzes on the neutron storage properties of decay bottles were carried out, and a cylindrical shape, tangential injection, 50 cm diameter and 60 cm lenght stainless steel bottle was prepared. The developments of these bottle arrangements were presented in the Workshop JHP'98 held at KEK,Tsukuba.7.The bottle prepared was connected to KUR supermirror neutron turbine facility for the experiments of bottle characteristics studies and further applications to neutron physics experiments.

1.一个超速中子存储瓶的设计，对中子β衰变的物理预测进行了优化。开发了一个衰减粒子光谱仪，并阐明了特性。这些结果发表在J.Phys.Soc.Japan，Suppl.a.2.中为了准备最佳的中子衰变实验的储存瓶，在Thediamond表面工作和电化学表面抛光上研究了最高的金属表面处理技术，并且钻石表面的表面工作不适用，而无效的是静态的，而不是陈旧的材料。在大的硬材料表面积上进行超高精度抛光。 These developments were reported in KURRI Progress Report 1996 and the Scientific Meeting in the Research Reactor Institute.4.A new important approach was developed on the theoretical expression of the total reflection of bottle mirrors, and the approach was reported in KURRI-KR-14(1997).5.According to these research developments, high quality stainless steel mirrors were prepared by the electro-chemical ultra-high treatments.反射率研究的微弱结果提供了有关选举和化学抛光过程最佳组合的信息。这些研究的结果报道了出版物“ Hamon” 7（1997）.6。基于这些研究的结果，对衰减瓶的中子存储特性进行了数值分析，并制备了圆柱形的形状，切向注射，直径50 cm和60 cm Lenght无剂量的固定钢瓶。这些瓶子布置的发展是在Tsukuba的Kek举行的研讨会JHP'98中提出的。7。制备的瓶子与Kur Supermirror Neutron Turbine设施相连，以进行瓶装特征研究的实验，并在中子物理学实验中应用进一步应用。