Published September 19, 2025 | Version v1
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Progress in Iodine Thruster Technology: Key Developments in Project BOOST

Description

The BOOST project (Building blOcks for iOdine Thrusters), is a research initiative funded by the European Union, aiming at advancing Small satellites capabilities by developing an iodine-compatible RF cathode, a smart propellant storage system for on-orbit refueling, and an improved fluidic subsystem. Additionally, it focuses on upgrading testing facilities and enhancing diagnostics for iodine plasma. Currently, xenon (Xe) and krypton (Kr) are the most commonly used propellants. However, they require pressurized tanks for storage, increasing the mass of the system and introducing safety issues for the launching system. The choice of iodine (I2) as propellant has the potential to remove these constraints, as it can be stored in solid state at ambient conditions, while further decreasing costs related to space access, as it is cheaper to procure than xenon.

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Additional details

Funding

European Commission
BOOST - Building blOcks for iOdine thruSTer 101135216