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Delta L: An Apparatus for Measuring Macromolecular Crystal Growth Rates in MicrogravityIn order to determine how macromolecule crystal quality improvement in microgravity is related to crystal growth characteristics, is was necessary to develop new hardware that could measure the crystal growth rates of a population of crystals growing under the same solution conditions. As crystal growth rate is defined as the change or delta in a defined dimension or length (L) of a crystal over time, the hardware was named Delta L. Delta L consists of fluids, optics, and data acquisition, sub-assemblies. Temperature control is provided for the crystal growth chamber. Delta L will be used in connection with the Glovebox Integrated Microgravity Isolation Technology (g-LIMIT) inside the Microgravity Science Glovebox (MSG), onboard the International Space Station (ISS). Delta L prototype hardware has been assembled. This paper will describe an overview of the design of Delta L and present preliminary crystal growth rate data.
Document ID
Document Type
Conference Paper
Judge, Russell A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Whitaker, Ann F.
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Solid-State Physics
Meeting Information
Meeting: American Inst. of Aeronautics and Astronautics Conference
Location: Cocoa Beach, FL
Country: United States
Start Date: October 12, 2001
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
Distribution Limits
Work of the US Gov. Public Use Permitted.

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