OPM-MEG system in realistic conditions This code was used to calulating results for the paper Optimising the sensing volume of OPM sensors for MEG source reconstruction https://doi.org/10.1016/j.neuroimage.2022.119747 The model can be used as a toolkit for optimising OPM-MEG systems in a wide range of experimental conditions Here we show how the optimal cell dimensions and number of sensors in the array depend on the environmental and brain noise. Toolkit is devided into to parts: Calculation for single sensors Calculations for array of sensors All computations are performed using the FieldTrip toolbox (Oostenveld et al., 2011) and custom MATLAB scripts (R2019b, Mathworks, USA) If you have any quiestions contact Yulia Bezsudnova yxb968@student.bham.ac.uk