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SWEA Detector Assembly Design Overview for Peer Review

This document presents an exploded view of the SWEA detector head, detailing the pedestal, electronics, and mounting interfaces supplied by UCB and CESR. Key features include the design modifications from the STEREO SWEA pedestal, highlighting the removal of STE instrumentation and supporting electronics, leading to a simpler, half-height mounting solution. The presented assembly weighs 20 kg in balance mass, with important elements such as purge and vent ports, HV enable plugs, and solar absorber area considerations. This peer review aims to ensure compliance and functionality for the SWEA mission.

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SWEA Detector Assembly Design Overview for Peer Review

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  1. PFP Mechanical Peer Review SWEA Pedestal Paul Turin, LME 2010 May 10

  2. SWEA Assembly CESR supplied detector and MCP assembly UCB supplied electronics and mounting interface

  3. Stowed on S/C Caged to forward deck 20kg balance mass

  4. Deployed on S/C SWEA axis parallel to SC Z when deployed (balance mass not shown)

  5. Exploded View SWEA detector head Purge port (fitting TBD) LVPS Pedestal housing Digital board Board mounted SC harness and enable connectors Cover HV enable plug

  6. Baseplate Mounting holes (4) Area expected needed for solar absorber Vent port (screened for EMC) HV Enable plug (green tag item) SC harness connector

  7. Differences from STEREO SWEA • Modification of STEREO SWEA pedestal design • STE instrument and supporting electronics removed • ½ height, simpler mounting at periphery • Only LVPS and digital board • Simpler electrical interfaces • Expect to want sun absorber area on base – issue with balance mass?

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