Engineering topics

Sanchez, Javier

Publications and source records attributed to Sanchez, Javier.

3 records

NASA NTRS2021

Preliminary Considerations for Microwave Consolidation/Sintering of Lunar Regolith Simulant

As NASA prepares to establish permanent habitats on the Moon, a significant first stepis to be able to land multiple times in the same area. As was consistently shown during the Apolloprogram, the very fine granular structure of the lunar regolith (the Moon’s “soil”) poses significantphysical and health challenges [1]. One of the most concerning is the hyper-velocity lunarsurface ejecta that results from the engine exhaust that exits the rocket as it lands and takes off[2]. It has been determined that to mitigate this, the regolith must be consolidated.

Shulman, Holly↗

NASA NTRS2021

Microwave Sintering: Initial Scale-up for Lunar Landing and Launch Pad Construction

No abstract provided

Bahr, Curtis W.↗

NASA NTRS2019

IXPE Mirror Module Assemblies

Expected to launch in 2021 Spring, the Imaging X-ray Polarimetry Explorer (IXPE) is a NASA Astrophysics Small Explorer Mission with significant contributions from the Italian space agency (ASI). The IXPE observatory features three identical x-ray telescopes, each comprised of a 4-m-focal-length mirror module assembly (MMA, provided by NASA Marshall Space Flight Center) that focuses x rays onto a polarization-sensitive, imaging detector (contributed by ASI-funded institutions). This paper summarizes the MMA’s design, fabrication, alignment and assembly, expected performance, and calibration plans.

Ramsey, Brian D.↗