| 摘要 |
<P>PROBLEM TO BE SOLVED: To washingly remove a precipitate sediment in the inside of a discharge pipe to prevent the pipe from being blocked to continue stably a long term operation for a detector. <P>SOLUTION: Removing means 23, 25, 31, 33 are provided in the discharge pipe 22 to remove fluidly, mechanically or chemically the precipitate sediment, for example, iron oxides, in the inside thereof. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
