Duangjai, B.Nuntiyakul, W.Seripienlert, A.Pagwhan, A.Chaiwongkhot, K.Sáiz, A.Ruffolo, D.Evenson, P.2024-02-222024-02-222023-12-01Duangjai, B, W Nuntiyakul, A Seripienlert, A Pagwhan, K Chaiwongkhot, A Sáiz, D Ruffolo, and P Evenson. “Monte Carlo Simulation and Measurement of Calibration Neutron Monitor Count Rate Dependence on Proximity to Water.” Journal of Physics: Conference Series 2653, no. 1 (December 1, 2023): 012018. https://doi.org/10.1088/1742-6596/2653/1/012018.1742-6596https://udspace.udel.edu/handle/19716/34013This article was originally published in Journal of Physics: Conference Series. The version of record is available at: https://doi.org/10.1088/1742-6596/2653/1/012018Due to their global availability, neutron monitors play a crucial role in measuring time variations in the Galactic cosmic ray flux. A portable calibration neutron monitor (CalMon) is useful for intercalibrating various neutron monitors to ensure accurate measurements. A common technique to ensure that the calibration is done in a consistent environment is to place the CalMon at some height above a wide container (such as a portable swimming pool) filled with water. This study investigates the impact of CalMon height and water depth on the count rate ratio relative to a standard 18NM64 count rate recorded nearby (CalMon/18NM64). We compare simulated data from the FLUKA Monte Carlo package to experimental data from [1] to demonstrate the statistical accuracy of our simulation. Using the simulation results, we then extend the study of the proximity-to-water effect on the counting rate. In this work, we present a preliminary empirical model by analyzing the CalMon/18NM64 as a function of CalMon to water distance. Overall, our study enhances understanding of the response of calibration monitors (now often called "mini-neutron monitors") operated in various locations worldwide, and validates the Monte Carlo techniques used to model the response of the global neutron monitor network.en-USAttribution 3.0 UnportedArticle