NUCLEAR TECHNIQUES, Volume. 46, Issue 10, 100403(2023)
Performance of channel electron multiplier with single helix channel
There are no commercially available channel electron multipliers (CEMs) made of glass in domestic market of China; more complex CEMs with helix channels are scarcer.
This study aims to develop a CEM with a single helix channel, and test its performace for satisfying the requirements of high-end users of such products.
First of all, a series of manufacturing process designs and improvements were made on the basis of the formula of microchannel sheet glass, resulting in the production of a single spiral channel electron multiplier with suitable performance. Then, a CEM analog mode test device with a disc-incense type tantalum filament as the input current and a CEM pulse-counting mode test device with an ultraviolet light-emitting diode combined with a gold cathode as the input signal were set up to conduct comprehensive testing of the device's performance parameters.
The newly developed CEM with single helix channel achieves gains of 1×104~1×106 in the analog mode and 1×107~1×108 in the pulse-counting mode. The gain value increases with the increase of the working voltage, and the rise time of the output pulse is 2~3 ns.
The overall performance of the developed CEM is close to that of foreign counterparts, and the CEM can be used in related instruments.
Get Citation
Copy Citation Text
Binting ZHANG, Shulin LIU, Baojun YAN, Wenlu WEI, Huaxing PENG. Performance of channel electron multiplier with single helix channel[J]. NUCLEAR TECHNIQUES, 2023, 46(10): 100403
Category: Research Articles
Received: Apr. 7, 2023
Accepted: --
Published Online: Nov. 21, 2023
The Author Email: