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Proceedings Paper

Design of a mechanically actuated reconfigurable slitmask for the NGST near IR spectrograph
Author(s): Darren A. Erickson
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Paper Abstract

The National Research Council of Canada, Herzberg Institute of Astrophysics has been developing a reconfigurable slitmask intended for the NGST near IR spectrograph. The Mechanically Actuated Reconfigurable Slitmask (MARS) creates 50 slits in the telescope focal plane. The slit location and width are adjustable, but the height is fixed. Reconfiguration of the mask components is achieved using a combination of electromagnetic and piezoelectric actuators. This actuation scheme has undergone structural, electrical, thermal and magnetic analysis. Several prototype components have also been built and tested. This analysis and testing indicates that the MARS device represents a viable concept for creating slits within the NGST near IR spectrograph.

Paper Details

Date Published: 29 August 2017
PDF: 3 pages
Proc. SPIE 10313, Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging, 103130R (29 August 2017); doi: 10.1117/12.2283823
Show Author Affiliations
Darren A. Erickson, National Research Council Canada (Canada)


Published in SPIE Proceedings Vol. 10313:
Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging
John C. Armitage, Editor(s)

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