H. KrugerH. MoraalD. RuffoloA. SaizT. NutaroN. KamyanW. NuntiyakulB. HeberC. SteigiesNorth-West UniversityMahidol UniversitySouth Carolina Commission on Higher EducationUbon Rajathanee UniversityChristian-Albrechts-Universitat zu Kiel2018-05-032018-05-032011-01-01Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011. Vol.11, (2011), 451-4542-s2.0-84874316772https://repository.li.mahidol.ac.th/handle/20.500.14594/12853Two calibration neutron monitors were designed for calibrating the ∼ 40 stationary neutron monitors around the world in order to obtain rigidity spectra. One calibrator was sent to Kiel (P c = 2.36 GV), Germany, and later to Doi Inthanon (P c = 16.8 GV), Thailand. The other calibrator was transported to Antarctica to calibrate the NM64 and NMD at SANAE (P c = 0.73 GV). Both calibrators were calibrated against each other and the IGY in Potchefstroom (P c = 6.94 GV), South Africa. Initial results on the intercalibration of these four stationary neutron monitors are reported.Mahidol UniversityPhysics and AstronomyConference PaperSCOPUS10.7529/ICRC2011/V11/0436