Question

Which of the following is the detection limit of ISS for monolayer?

(a) 10 ^-1 %

(b) 10 ^-2 %

(c) 10 ^-3 %

(d) 10 ^-4 %

I had been asked this question during an online interview.

I'm obligated to ask this question of Instrumentation of Ion Spectroscopy in portion Electron and Ion Spectrometers of Analytical Instrumentation

Answer 1

The correct choice is (c) 10 ^-3 %

To explain I would say: 10^-3% of the monolayer is the detection limit of ISS. It can be effectively used for depth profiling.