Microsphere plate (MSP) is a compact electron multiplier with temporal and spatial resolving power.It consists of glass beads with diameter of 40 to 60/μm.These glass beads were sintered to form a thin

porous plate.The surface of the glass beads is covered with partially conductive

secondary electron emissive material.The two faces of the plate are coated with conductive electrodes.When voltage is applied between the two electrodes

secondary electron multiplication takes place among the glass beads.MSP is used in vacuum system for the detection of charged particles.Its applications include particle imaging

time-of-light mass spectroscopy

particle monitoring

and electron microscopy.There are several key technologies in the process of fabricating final MSP.First of all

the formation of MSP substrate is the most important

due to the requirement of porosity and strength.The quality of the substrate will directly affects on the quality of final MSP.In this paper an introduction of the operating principle and characteristics of MSP was presented.Based on twin-ball sintering mode

a sintering rate formulation in the sintering process was established.In the actual sintering experiment

this twin-ball mode is superior to the panel-ball mode proposed by Kuczynski

so the sintering rate formulation agrees to the experiment well and can help us to operate technological process properly.In this paper the experimental processes on the formations of glass-beads and MSP body were presented also.The specific experiment included the followings: designed high lead glass as composition which can be used for formatting glass-beads

fabrication of glass-beads with vertical stove which was designed by ourselves

explored sorting technology of glass-bead and technological process of MSP.In the end

some comparison images of the experimental samples were given with that taken from reference.From these images.it will be found that our glass-beads’sphericity is good and sorting technology was well done

the sintering process controlled well

the MSP body has a quantity of connective gaps and passage

and has little distortion.Generally speaking

the experiment is successful.In the whole experiments

we think it is important to solve the sorting technology of glass-beads.In order to form gaps and passage

it needs precisely control the sintering process and make possible methods to improve the MSP quality.In order to minimize the pollution to MSP

the whole experiment must be made in the clean environment.The experiment on fabricating MSP is unprecedented at home

so the experiment is a new one.The experiment itself has embodied the spirit of innovation

especially in the process of formation of MSP body and minimizing the pollution to MSP in the whole process.All of these will enable the follow researcher to improve the fabricating process and pave the way for further study on MSP.