Powder Diffraction

XRD Instrumentation and Techniques

Field deployment of a portable X-ray diffraction/X-ray flourescence instrument on Mars analog terrain

P. Sarrazina1 c1, D. Blakea2, S. Feldmana2, S. Chiperaa3, D. Vanimana3 and D. Bisha4

a1 inXitu, P.O. Box 730, Mountain View, California 94042

a2 NASA Ames Research Center, MS 239-4, Moffett Field, California 94035

a3 Los Alamos National Laboratory, MS D469, Los Alamos, New Mexico 87545

a4 Indiana University, 1001 E 10th Street, Bloomington, Indiana 47405

Abstract

CheMin is a miniature X-ray diffraction/X-ray fluorescence instrument that is included in the payload of the Mars 2009 Mars Science Laboratory mission. A portable CheMin prototype was built to test the capability of the instrument for remote in situ mineralogical characterization of geological materials. The instrument was successfully deployed at a variety of Mars analog sites in Death Valley, CA, in May 2004.

(Received October 31 2004)

(Accepted March 22 2005)

Correspondence:

c1 Electronic mail: psarrazin@inxitu.com