DIHeDRAL: Downhole Regolith Interrogation with Helium-Assisted DRill And LIBS

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CF17P
Agency Tracking Number: 094912
Amount: $99,969.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: S1.11
Solicitation Number: N/A
Small Business Information
460 W. 34th Street, New York, NY, 10001-2320
DUNS: 131364820
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Paolo Moreschini
 Principal Investigator
 (646) 459-7823
Business Contact
 Chris Chapman
Title: President
Phone: (646) 459-7802
Email: chapman@honeybeerobotics.com
Research Institution
Future landed robotic missions to the lunar poles will seek to characterize the properties of subsurface regolith. Current instruments for such in-situ analysis, however, require that geological samples be brought to the surface by a sample acquisition tool and subsequently processed and presented to the analyzer. This model has significant limitations with regard to science yield: evaporation of volatile molecules before reaching the instrument, loss of stratigraphic information, sample bias, and cross-contamination. Furthermore, sophisticated sample acquisition, processing and handling mechanisms required to operate in uncontrolled, dusty environments are expensive and failure-prone. We therefore propose an alternative: bring the instrument to the sample. Specifically, we propose development of a fiber-coupled laser-induced breakdown spectrometer (LIBS) system, integrated into a 3m-class drill. LIBS uses a high-energy laser pulse to create a plasma on the surface of the material under test; the atomic emissions are collected by a spectrometer and yield elemental composition and basic molecular information. DIHeDRAL will allow profiling of an entire borehole wall, centimeter by centimeter, 360 degrees, from the top to the bottom. The proposed Phase I work focuses on the downhole sensor head, including modeling, analysis, and breadboarding of the sensor head optics. The resulting validated sensor head design will be fed forward into Phase II, which will culminate in the integration and test of a simplified DIHeDRAL brassboard prototype to a depth of 1m in Honeybee's dedicated drill testing thermal-vacuum chamber.

* Information listed above is at the time of submission. *

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