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Two-Pulsed Technique for Ablative Laser Propulsion: Force Measurement in VacuumThis is a continuation of studies using a two-pulsed technique for Ablative Laser Propulsion (ALP) extended to force measurements in vacuum. Aluminum samples were ablated using pairs of laser pulses, each of 100 ps width, 532 nm wavelength and 5 mJ energy. The pulses were temporally separated in the 0 - 0.67 ns range. The force imparted on Al targets was measured in situ by means of a piezoelectric force gauge. The preliminary results confirm the previously reported oscillatory behavior of ion velocity and number density observed by means of a time-of-flight energy analyzer. The uncertainties of presented measurements and future directions for the study are discussed.
Document ID
20040161470
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Herren, Kenneth A.
(National Space Science and Technology Center Huntsville, AL, United States)
Cohen, Timothy
(Alabama Univ. Huntsville, AL, United States)
Lin, Jun
(Alabama Univ. Huntsville, AL, United States)
Pakhomov, Andrew V.
(Alabama Univ. Huntsville, AL, United States)
Date Acquired
August 22, 2013
Publication Date
January 1, 2004
Subject Category
Lasers And Masers
Meeting Information
Meeting: Third International Symposium on Beamed Energy Propulsion
Location: Troy, NY
Country: United States
Start Date: October 11, 2004
End Date: October 13, 2004
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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