T/BEA 43002-2023 Active Group standards

T/BEA 43002-2023 The calibration specification for Langmuir probe plasma testers

Publish Date: 2023-02-20 Implement Date: 2023-04-19 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/BEA 43002-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Other standards related to electricity and magnetism

Publish Date: 2023-02-20

Implement Date: 2023-04-19

Scope

Main Technical Content: 1. Scope This specification applies to the calibration of low-temperature plasma Langmuir single-probe plasma testers (hereinafter referred to as plasma testers) with an electron density range of 1012 m-3 to 1018 m-3 and an electron temperature range of 1 eV to 10 eV. 2. Referenced Documents This specification references the following documents: - GJB 7363—2011: Dynamic Test Methods for Space Plasma Environmental Effects - Any referenced document with a specified date applies only to the version on that date; - For unspecified date referenced documents, the latest version (including all amendments) applies. 3. Terms and Definitions The terms and definitions defined in GJB 7363—2011 apply to this specification. 3.1 Plasma Plasma is composed of a large number of charged particles (positive ions, negative electrons) and neutral particles, and is often regarded as the fourth state of matter. On a macroscopic scale (greater than the Debye length), the densities of positive ions and negative electrons are equal, indicating quasi-neutrality. 3.2 Plasma Generator A device that converts the state of matter into plasma through energy conversion. 3.3 Plasma Electron Density The number of freely moving electrons per unit volume within the plasma. Unit: m-3. 3.4 Plasma Electron Temperature The average kinetic energy of electrons when they reach local thermal equilibrium in the plasma. Unit: eV (the average kinetic energy of 1 eV corresponds to a temperature of 11,600 K). 4. Overview A plasma tester is a contact-type plasma measurement device primarily used for measuring plasma electron temperature and electron density. It consists of a probe, a scanning power supply, and an acquisition and conditioning system. The probe head is typically made of high-temperature-resistant and sputtering-resistant conductive materials, with tungsten commonly used as the probe material. During the measurement, the probe is placed in the