Note: Absolute detection efficiency of a tapered microchannel plate for Ne⁺ ions

Area of Science:

• Physics
• Materials Science

Background:

• Microchannel plates (MCPs) are crucial for detecting charged particles.
• Understanding their detection efficiency is vital for various scientific applications.

Purpose of the Study:

• To determine the absolute detection efficiency of a tapered MCP for Ne(+) ions.
• To compare the Ne(+) detection efficiency with existing Xe(+) data.
• To investigate the energy dependence of the efficiency curves based on a scaling law.

Main Methods:

• Absolute detection efficiency measurements were performed for Ne(+) ions.
• Ion energies ranged up to 5 keV.
• Data was compared with Xe(+) ion results.

Main Results:

• The tapered MCP achieved a maximum detection efficiency of 90% for Ne(+) ions.
• This efficiency is comparable to that observed for Xe(+) ions.
• The energy dependence of normalized efficiency curves aligned with a previously proposed scaling law.

Conclusions:

• The tested tapered MCP demonstrates high detection efficiency for Ne(+) ions.
• The findings support the universality of the proposed scaling law for MCP detection efficiency.
• This research contributes to optimizing particle detection systems.