Physics – Plasma Physics
Scientific paper
Oct 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aps..dppbp1119p&link_type=abstract
American Physical Society, 48th Annual Meeting of the Division of Plasma Physics, October 30-November 3, 2006, abstract #BP1.119
Physics
Plasma Physics
Scientific paper
A low cost photo-electric detector was tested for use in a laboratory experiment simulating solar coronal loops. An array of such detectors is desired to image the ultraviolet radiation previously observed in this experiment. The detector had a coaxial design with a magnesium inner disk (chosen for its low work function) and a steel outer cylinder. The detector was placed in a vacuum chamber along with a pulsed mercury flash lamp separated by 50 centimeters. A current-to-voltage amplifier was used to read the detector's output. Numerous tests were conducted, including varying bias voltage, introducing magnetic fields, and occulting and collimating the incoming radiation. Two types of signals, distinguished by the bias voltage polarity, were observed. When the inner disk was negatively biased, the signal appears consistent with a photo-electric signal. With a positively biased inner disk, the signal seemed to be produced by secondary sources: electrons photo-emitted at the chamber walls or released from ionized gas.
Bellan Paul
Perkins Rory
No associations
LandOfFree
A Low Cost Photo-Electric Detector for a Solar Coronal Loop Experiment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Low Cost Photo-Electric Detector for a Solar Coronal Loop Experiment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Low Cost Photo-Electric Detector for a Solar Coronal Loop Experiment will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-870451