12 papers
Liquid nitrogen pre-cooling system for ELT instruments utilizing additively manufactured heat exchangers, integrated temperature and liquid level control
Anastasios Aretos, Younes Chahid, Lee Chapman +5
Using liquid Nitrogen as the cryogenic fluid for pre-cooling purposes is almost ubiquitous across modern observatories. That method tends to be inefficient since it relies on the e…
Exploring generative design AI tools for astronomical instrumentation: a CubeSat chassis case study
Younes Chahid, Tassos Aretos, Will Cochrane +12
Generative design artificial intelligence (AI) tools are currently used in multiple scientific fields, yet their adoption in mechanical engineering computer-aided design (CAD) rema…
WST, the wide-field spectroscopic telescope: progress on the design of the instruments
David Lee, Joel Vernet, Elizabeth George +46
WST, the Wide-field Spectroscopic Telescope is a proposed new facility that will provide a transformational gain in spectroscopic survey capability over existing facilities. The WS…
Laser Remelting for Reduced Porosity on Additively Manufactured Aluminium Mirrors
Joshua West, Valentina Oyarzun, Marcell Westsik +17
Additively manufactured (AM) AlSi10Mg mirrors are fabricated through laser powder bed fusion (LPBF), allowing the use of complex geometries such as lattices and organic structures…
WST -- Wide-field Spectroscopic Telescope: The Next Leap in Wide-field Spectroscopy
Roland Bacon, Olga Bellido, Philippe Dierickx +52
The Wide-field Spectroscopic Telescope (WST) is a concept for a dedicated 12-m spectroscopic survey facility designed to address some of the most important questions in astrophysic…
WST Multi-Object Spectrograph Fiber Positioners:Development of a 32,000-Unit Precision Robotic System
Sébastien Pernecker, Maxime Rombach, Malak Galal +13
The Wide-field Spectroscopic Telescope Multi-Object Spectrograph requires an unprecedented fiber positioning system comprising 30'000 low-resolution and 2'000 high-resolution posit…
Additive manufacturing in aluminium of a primary mirror for a CubeSat application: manufacture, testing and evaluation
Ilhan Aziz, Younes Chahid, Jennifer Keogh +16
Additive manufacturing (AM; 3D Printing), a process which creates a part layer-by-layer, has the potential to improve upon conventional lightweight mirror manufacturing techniques,…
Investigating Mass Reduction Capabilities of Additive Manufacturing through the Re-Design of a Space-Based Mirror
Rhys Tuck, Younes Chahid, Greg Lister +8
Additive manufacture (AM) involves creating a part layer by layer and is a rapidly evolving manufacturing process. It has multiple strengths that apply to space-based optics, such…
Additive manufacturing applications in astronomy: a review
Younes Chahid, Carolyn Atkins, Greg Lister +9
Despite the established role of additive manufacturing (AM) in aerospace and medical fields, its adoption in astronomy remains low. Encouraging AM integration in a risk-averse comm…
Design, manufacture and metrology of additively manufactured, metal and ceramic lightweight circular mirror prototypes
Greg Lister, Rhys Tuck, Younes Chahid +9
Spaced-based mirrors are a developing use-case for Additive Manufacturing (AM), the process that builds a part layer-by-layer. The increased geometric freedom results in novel and…
Targeting low micro-roughness for 3D printed aluminium mirrors using a hot isostatic press
Carolyn Atkins, Younes Chahid, Gregory Lister +14
Additive manufacturing (AM; 3D printing) in aluminium using laser powder bed fusion provides a new design space for lightweight mirror production. Printing layer-by-layer enables t…
Additive manufacturing in ceramics: targeting lightweight mirror applications in the visible, ultraviolet and X-ray
Carolyn Atkins, Younes Chahid, Gregory Lister +12
Additive manufacturing (AM; 3D printing) has clear benefits in the production of lightweight mirrors for astronomy: it can create optimised lightweight structures and combine multi…