Background
The research project was undertaken with the goal of developing an instrument model for the Advanced Mass and Ionic Charge Composition Experiment (AMICCE). AMICCE is designed to measure suprathermal ions, a particle population that is poorly characterized but crucial for understanding particle acceleration processes in interplanetary space. The project aimed to build a comprehensive model of the AMICCE instrument to ensure it meets the required performance criteria for future missions, provide dimensions for a full-size prototype, and improve its Technical Readiness Level (TRL) in the future.
Approach
The main objective of the project was to verify that the AMICCE instrument meets the science requirements of the SNAP mission and to develop a foundation for the mechanical design of a full-size prototype. To achieve this, the project was divided into three main tasks:
- Construct the instrument model.
- Perform a margins analysis and optimization.
- Determine the UV transmission through the instrument to the Solid-State Detector (SSD).
The instrument model was constructed using a master code written in the Interactive Data Language (IDL), interfacing with the Simion software to simulate the electro-optics performance. The model's architecture included a detailed simulation of the electro-optics, including the electrostatic analyzer (ESA) and a collimator, incorporating a variety of instrument parameters to optimize performance and predict sensitivity.
Accomplishments
The research successfully met all three primary objectives:
- Instrument Model Construction: An end-to-end instrument model was developed, directly addressing weaknesses in geometric factor and UV sensitivity, and providing necessary dimensions for a full-size prototype.
- Margins Analysis and Optimization: The project performed detailed margins analysis and parameter optimization to ensure the instrument's predicted
- UV Transmission Determination: The model was used to evaluate the predicted transmission of UV light through the instrument, determining the sensitivity to light and resolving known issues in UV transmission to the SSD.
- The AMICCE instrument's predicted performance meets or exceeds all measurement requirements of a future mission, demonstrating its readiness. The successful development of the instrument model establishes a strong foundation for future prototyping and integration into upcoming mission proposals.