Geiger photodiode array for compact, lightweight laser-induced breakdown spectroscopy instrumentation.
The development of a unique spectrometer based on an array of Geiger photodiodes has been shown to enhance the performance of laser-induced breakdown spectroscopy (LIBS) instrumentation. These compact, silicon-based detectors eliminate the need for postamplification electronics, allow for the detection of single photons at room temperature, and do not require complex gating-timing circuitry. The detectors have dark-count rates of <500 Hz at room temperature and a good response from the UV to the near IR. Their high sensitivity makes them candidates for standoff analysis as part of a LIBS spectrum analyzer.
Radiation Monitoring Devices, Inc., 44 Hunt Street, Watertown, Massachusetts 02472-4699, USA. rmyers@rmdinc.com
Richard A
RA
Myers
Arieh M
AM
Karger
David W
DW
Hahn