Effect of Laser Energy on Ion Signal Intensity in a Quadrupole-based Laser Ionization Mass Spectrometer.

This is the authors' abstract. We don't add key points for this paper.

The effect of the laser energy on the ion signal intensity was studied with the use of a quadrupole-based laser ionization mass spectrometer by varying the laser pulse energy over a range of 2 to 24 mJ. The experiment showed increase of the ion signal intensity with the laser energy up to the peak at 8 mJ. Reconstruction of the ion chamber to introduce retarding electric field in it was found to be more effective to increase the ion signal intensity and signal to noise ratio.