THE NATURAL RADIATION ENVIRONMENTⅡPROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON THE NATURAL RADIATION ENVIRONMENT AUGUST 7-11,1972 HOUSTON, TEXAS USA

摘要

GEOLOGY OF NATURAL RADIATION SOURCESnGEOLOGIC FACTORS CONTROLLING TERRESTRIAL GAMMA-RAY DOSE RATESnA REVIEW OF U AND Th DISTRIBUTIONS IN RECENT VOLCANICS FROM SOUTHERN ITALY: MAGMATO LOGICAL AND GEOPHYSICAL IMPLICATIONSnURANIUM, THORIUM, AND POTASSIUM CONTENTS OF JAPANESE GRANITIC ROCKS: A SUMMARY UP TO 1972nURANIUM, THORIUM AND POTASSIUM CONTENTS IN GRANITIC AND BASALTIC ROCKS IN JAPANnRADIATION SURVEYS FROM AIRCRAFTnTECHNICAL PROCEDURES FOR CHARACTERIZING THE TERRESTRIAL GAMMA RADIATION ENVIRONMENT BY AERIAL SURVEYSnTHE AERIAL RADIOLOGICAL MEASURING SYSTEM PROGRAMnAERIAL SNOW GAUGING USING NATURAL TERRESTRIAL GAMMA RADIATIONnMONTE CARLO SIMULATION OF AERIAL RADIATION MEASUREMENTS FOR DISTRIBUTED GROUND-BASED GAMMA SOURCESnCOMPUTER MODELLING AND EXPERIMENTAL CALIBRATION OF AIRBORNE GAMMA SPECTROMETER SYSTEMSnA GAMMA RAY SPECTROMETER FOR OPERATION IN SMALL AIRCRAFT