Development of a neutron guide tube production technique at KAERI

作者：Cho Sang Jin^*; Seung Baek Soek; Lee Chang Hee; Kim Hark Rho

来源：Physica B: Condensed Matter , 2006, 385-86: 1259-1261.

DOI：10.1016/j.physb.2006.06.104

• neutron guide tube
• nickel mirror
• supermirror

In this paper, we present KAERI's technical development status for a neutron guide tube fabrication. To achieve a high uniformity, very low roughness and perfect interface during the layer growth process, a sputtering machine was developed whereby various deposition parameters can be controlled. The Ni mirrors fabricated with this coating equipment show a neutron reflectivity of 97% at the critical angle and the Ni/Ti-supermirrors show (M = 2) 84%. For a substrate alignment and assembly for the guide elements, a non-contact measurement apparatus equipped with optical microscopes was developed instead of using a 3-axis measuring machine. By employing this optical equipment, it was possible to assemble a neutron guide with an accuracy in the lateral direction of 0.005 min and in the vertical direction of 0.01 mm.

• 出版日期2006-11-15