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| Paper: |
Next-Generation MicroShutter Array for HWO UV Multi-Object Spectrograph |
| Monograph: |
11, HWO25 Proceedings Part II: Mission Framework, Technology, and Broader Contributions |
| Page: |
283 |
| Authors: |
Meng-Ping Chang, Kyowon Kim, Paul Scowen, Alexander Kutyrev, Edward Wollack, Allison Youngblood, Stephan McCandliss, Regis Brekosky, Ming Ke, Gang Hu, Suryakanthi Rachamadugu, Daniel LoucksBaer, Frederick Wang, Nicholas Costen, Samelys Rodriguez, Eduardo Aguayo, Beth Paquette, Margaret H. Samuels, and Rainer Fettig |
| DOI: |
10.26624/WMUE3931 |
| Abstract: |
We report recent advances in the Next-Generation MicroShutter Array (NGMSA) technology, which enables programmable field selection for the Habitable Worlds Observatory's Ultraviolet Multi-Object Spectrograph with the capability to simultaneously capture over 256 spectra per quadrant (z384×768z pixels) across various astronomical targets. By replacing the James Webb Space Telescope's flying magnetic actuation system with an electrostatic actuation mechanism, NGMSA achieves scalability to formats exceeding z7.2'×7.2'z with over one million shutters in z2×2z mosaic configurations, while maintaining low mass (approximately 1.5 kg per quadrant) and eliminating mechanical complexity and life-limited components. This technology, baselined for LUVOIR, HabEx, and CETUS Decadal Survey mission concepts, is slated for integration into the HWO's UV multi-object spectrograph instrument to enable spectroscopic capabilities for targets ranging from cosmological objects to solar system bodies. |
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