Microchannel plate (MCP) is an advanced charged particle multiplier consisted of an arrayed microchannels glass-based material, widely used in the fields of night vision intensification, time of flight mass spectrometer, and electron microscopy. For the detection of high-energy ions, inadequate resistance of ion bombardment became the main bottleneck of microchannel plate. The cladding glass was the inner-wall of microchannels and determined the foundation of the microchannel plate. In this paper, the microchannel plate with (SrO, ZrO2) doped lead-silicate cladding glass was explored in the ion bombardment-resistant properties. Cesium ion gun, laser confocal microscope, and Vacuum Photoelectron Imaging Test Facility (VPIT) were applied to investigate the ion etching, surface morphology and the lifetime of the lead-silicate glass microchannel plate, respectively. The test results are as follows: the accumulative output charge of microchannel plate with the (SrO, ZrO2) doped lead-silicate glass and the traditional lead-silicate glass was ≥19.25 C and 3.21 C, respectively. It impacted that (SrO, ZrO2) doped lead-silicate glass certainly benefited the working life of the MCP.
Microchannel plate (MCP) is an important charged particle electronic multiplier. Usually, electrons as the charged particles entered the input-end and strike the inner wall of the microchannel, producing an electron multiplication. Once the input particles changed into high-energy ions, colliding and sputtering effects would occur in the secondary electron multiplication generation processing of directly bombard on the microchannel plate. A poor ion bombardment-resistance property became the main bottleneck for the detection of high-energy ions of microchannel plate. In this paper, the (SrO, ZrO2) doped lead-silicate glass was as the cladding glass of microchannel plate and explored in the ion bombardment-resistant properties. Argon/cesium ion gun and laser confocal microscope were applied to investigate the ion etching and etching surface morphology of the lead-silicate glass microchannel plate, respectively. It impacted that (SrO, ZrO2) doped lead-silicate glass certainly benefited the ion-bombardment resistance of the MCP.
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