公开(公告)号：US4125793A

公开(公告)日：1978-11-14

申请号：US764649

申请日：1977-02-01

Applicant: Hans Timan

Inventor： Hans Timan

IPC: H01J1/88 ,  H01J40/02 ,  H01J43/18 ,  H01J39/02

CPC classification number: H01J43/18 ,  H01J1/88 ,  H01J40/02

Abstract: A photomultiplier tube in which the anode, which is positioned adjacent to the last dynode, is not supported by the side supports which support the dynodes as was done in the prior art, but is supported by the stem. Thus, the anode "floats" with respect to the side supports and with respect to the dynodes which are rigidly attached to the side support. An advantage of this structure is improved electrical properties, e.g., a reduction in dark current, improved signal to noise ratio and reduction in hysteresis. The floating anode is particularly applicable to box and grid type of dynode structures used in small diameter, e.g., one-half and three-fourth inch tubes.

Abstract translation: 一个光电倍增管，其中与最后一个倍增电极相邻定位的阳极不支持像现有技术中那样支撑倍增极的侧支撑，而是被该杆支撑。 因此，阳极相对于侧支撑件和相对于刚性地附接到侧支撑件的倍增电极“浮动”。 这种结构的优点是改善的电性能，例如暗电流的降低，改善的信噪比和减小滞后。 浮动阳极特别适用于小直径（例如1/2和3/4英寸）管中使用的盒式和栅格式的倍增极结构。