Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1824328 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2011 | 6 Pages |
Abstract
To visualize boiling two-phase flow at high heat flux by using neutron radiography, a new neutron radiography facility was developed in the B-4 beam hole of KUR. The B-4 beam hole is equipped with a supermirror neutron guide tube with a characteristic wavelength of 1.2Â Ã
, whose geometrical parameters of the guide tube are: 11.7Â m total length and 10Â mm wide Ã74Â mm high beam cross-section. The total neutron flux obtained from the KUR supermirror guide tube is about 5Ã107Â n/cm2Â s with a nominal thermal output of 5Â MW of KUR, which is about 100 times what is obtainable with the conventional KUR neutron radiography facility (E-2 beam hole). In this study a new imaging device, an electric power supply (1200Â A, 20Â V), and a thermal hydraulic loop were installed. The neutron source, the beam tube, and the radiography rooms are described in detail and the preliminary images obtained at the developed facility are shown.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Y. Saito, S. Sekimoto, M. Hino, Y. Kawabata,