%0 Journal Article %T ESTIMATION OF SAMPLE SPACING IN STOCHASTIC PROCESSES %A Anders R£¿nn-Nielsen %A Eva B. Vedel Jensen %A Jon Sporring %J - %D 2017 %X Motivated by applications in electron microscopy, we study the situation where a stationary and isotropic random field is observed on two parallel planes with unknown distance. We propose an estimator for this distance. Under the tractable, yet flexible class of L¨¦vy-based random field models, we derive an approximate variance of the estimator. The estimator and the approximate variance perform well in two simulation studies %K L¨¦vy-based modelling %K Monte Carlo methods %K random fields %K stereology %K section distance %K systematic sampling %K variance %K variogram %U https://www.ias-iss.org/ojs/IAS/article/view/1681