3. In ion mobility spectrometer, the ions are accelerated under a constant electric field in a...

3. In ion mobility spectrometer, the ions are accelerated under a constant electric field in a cylindrical tube and the time of flight of the ions in this tube is measured. The ions are detected by using a sensor at the end of the tube. a) What type of sensor can be used to detect the ions? b) The experiment is performed at high frequencies to be able to decrease the effect of the noise. What type of noises can be present in this experiment?c) During the experiment, many devices are used together. What type of grounding can be used for this experimental setup to be able to prevent floating grounds and crosstalks? d)

t(s) x 10^-6	? (cm^2 x V^-1 x s^-1 )
8.5	1100.0
7.0	1350.0
5.0	1600.0
3.5	1850.0
2.0	2100.0

The mobility of the ions is given as ? = ? ? 1 ? , where l, E and t are the length of the tube, the electric field strength and the time of flight, respectively. The data given in the table belongs to a specific type of spectrometer. By plotting this data, find the required length of the tube for an electric field strength of 10^4 V/cm.

Expert Solution

genius_generous answered 2 years ago

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