Measurement device used for space ions and neutral atoms

Abstract

The present invention provides a measurement device used for space ions and neutral atoms. The measurement system comprises an ion deflection system, a neutral atom ionization deflection system, an electrostatic analyzer, a flight time system, an electronics processing unit and a device shell. The back-end electrostatic analyzer, the flight time system and the electronics processing unit are shared to measure the ions generated by ionizing the neutral atoms and the ions radiated from the space directly, the measurement of the space ions and the neutral atoms is integrated in a probe, and the as much as possible measurement parts are shared, so that the weight and the power consumption of the device are reduced furthest, the requirements for the satellite platform resources are also reduced, and the fields to which the device is applied are expanded. The measurement device of the present invention has the wide application demands both in the terrestrial space field and the deep space exploration field.

Description

technical field [0001] The invention relates to the technical field of space environment detection, in particular to a comprehensive measurement device for space ions and neutral atoms. Background technique [0002] Charged ions and uncharged neutral atoms exist everywhere in Earth's space, interplanetary space, and the deep space of other planetary spaces in the solar system. Charged ions can become uncharged neutral atoms through charge exchange (receiving an electron). Uncharged neutral atoms can also become charged ions through charge exchange (losing an electron). The charge exchange process between charged ions and neutral atoms reflects some basic physical mechanisms in space. Therefore, the measurement of the information of charged ions and neutral atoms in space can be used to study basic physical issues of human concern, such as how low-energy particles are accelerated to high-energy particles, and how the sun affects the formation and dissipation of planetary at...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the existing particle detection equipment cannot complete the simultaneous measurement of the parameters of space ions and neutral atoms. The present invention provides a synchronous measurement device for space ions and neutral atoms, including: Deflection system, neutral atom ionization deflection system, electrostatic analyzer, time-of-flight system, electronics processing unit and device housing; the ion deflection system is used to expand the field of view of ion detection, and guide ions incident from space into electrostatic analysis The neutral atom ionization deflection system is used to ionize the neutral atoms incident from space into positively charged ions and then guide them into the electrostatic analyzer, while shielding the charged particles incident in space; the electrostatic analyzer passes through The applied voltage performs energy analysis on the ions entering the electrostatic analyzer, and screens out ions whose energy corresponds to the value of the voltage; the time-of-flight system is used to generate the starting point of the ions output from the electrostatic analyzer within a fixed flight distance. The electrical signal of the starting point and the electrical signal of the ending point; the electronic processing unit is used to process the electrical signal output by the time-of-flight system to obtain the direction, energy, density and composition information of ions and neutral atoms; the device shell is a device Provide installation platform

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