Simulation of Organic Magnetic Resonance Force Microscopy Experiments

摘要

This report describes the numerical simulation of a series of proposed magnetic resonance force microscopy (MRFM) experiments on organic material. The simulation predicts the performance of a new MRFM system under construction at ARL for use on 2-D and 3-D proton containing samples. The SNR's and signal lineshapes of the new MRFM system are predicted using a geometry and experimental protocol well suited to the study of organic materials. The SNR for a 2-D proton monolayer with a density of one proton per square nanometer with one second of integration time over an optimized area will be one. For a 3- D sample the SNR is position dependent, but for a sample with one proton per cubic nanometer and one second integration time, the SNR always significantly exceeds one. The strong SNR's in both the 2-D and 3-D cases makes observing a signal easy, and warrants continuing with the new organic MRFM system.