| 摘要 |
<p>An electron tube (10), comprising an MCP (electron multiplier) (14) having a multiplication part (16) with a large number of fine electron passing holes allowing secondary electrons to be discharged therethrough, a peripheral edge part (18) surrounding the multiplication part (16) and a vacuum closed container (12) surrounding at least the multiplication part (16) of the MCP (14), wherein the peripheral edge part (18) of the MCP (14) forms at least a part of the side wall part (22) of the vacuum closed container (12), whereby, when the outside dimensions of the vacuum closed container are the same as those of the container (12) in which the entire MCP is stored, the multiplication part (16) becomes larger than that of the container (12) in which the entire MCP is stored.</p> |
