Abstract
Elemental analysis system was proposed to enhance the efficiency of fuel debris retrieval on the Fukushima Daiichi NPP. The elemental analysis system required high radiation. Designing an elemental analysis system requires a fundamental study in several aspects. It includes the effect of sound spatial distribution inside the container. In this paper, the sound spatial distribution along the length of the container was investigated chemically using Luminol. The reaction between the Luminol (C8H7N3O2) and hydrogen peroxide (H2O2) produced from the collapsing bubble under ultrasound sonication was used to visualize the position of intense sound pressure. The sound pressure was observed under various ultrasonic frequency and liquid height. The result showed the sound pressure plays a high role in the light emission. The broader sound spatial distribution was observed under high ultrasonic frequency. The variation of liquid height showed the sound reflection occurred in the presence of different phase inside the container.
