A new method for reduction of photomultiplier signal-induced noise / Andrea Koble, Russell DeYoung.

Format:

Book

Government document

Author/Creator:

Koble, Andrea, author.

De Young, R. J., author.

Contributor:

Langley Research Center, issuing body.

Series:

NASA technical memorandum ; NASA/TM-2000-209836.

NASA/TM ; 2000-209836

Language:

English

Subjects (All):

Signal processing.

Optical radar.

Atmospheric ozone--Measurement.

Atmospheric ozone.

Genre:

Online resources.

Physical Description:

1 online resource (iii, 21 pages) : illustrations.

Place of Publication:

Hampton, Virginia : National Aeronautics and Space Administration, Langley Research Center, January 2000.

Summary:

For lidar measurements of ozone, photomultiplier tube (PMT) detector signal-induced noise represents a fundamental problem that complicates the extraction of information from lidar data. A new method is developed to significantly reduce signal-induced noise in lidar receiver PMT detectors. The electron optics of the lidar photomultiplier is modified to filter the source of signal-induced noise. A mesh electrode external to the PMT is utilized to control photoemission and disorient electron trajectories from the photocathode to the first dynode. Experiments were taken both with simulated and actual lidar return signals at Langley Research Center. Results show at least 40 percent more accurate ozone number density values with a mesh voltage of 60 V applied than with no voltage applied.

Notes:

"January 2000."

"Performing organization: NASA Langley Research Center"--Report documentation page.

Includes bibliographical references (pages 19-21).

Description based on online resource; title from PDF title page (NASA, viewed Oct. 30, 2017).

Other Format:

Print version: Koble, Andrea. New method for reduction of photomultiplier signal-induced noise

Microfiche version: Koble, Andrea. New method for reduction of photomultiplier signal-induced noise

OCLC:

858255599