A view panel for a raised floor system is described which is constructed by an outer rigid frame, an upper plate of a tempered glass panel and a lower plate of an apertured steel panel for providing structural support of the view panel. The method includes, during a data merging operation, receiving a write command and a write data corresponding to the write command from a host system. This allows the following steps to be carried out at the same time: removal of the silicon component left on the mask material surface and the mask material in the area including the cured mask layer and the like; and the removal of the carbon-based, and silicon-based deposits deposited on the inner wall of a vacuum chamber. The first attachment portion is fastened to the pivot plate from the horizontally external side of the seat rail with a first bolt, and laterally overlaps a rear upper lateral surface of the pivot plate. The position of each interacting neutron can be accurately obtained with for example, resistive charge division readout combined with straw decoding electronics to determine the identity of the struck straw.