Surface scattering type density measurement method and surface scattering type density measurement apparatus using the same

摘要

PURPOSE: To realize practical density measurement by conducting a corrective processing in consideration of the particle size of a sample to be measured. ;CONSTITUTION: A gamma-ray pulse is radiated from a radiation source 5 to a sample to be measured and a count value for a unit time of the gamma-ray pulse transmitted through the sample is determined for each of a plurality of energy ranges. Moreover, the value of a variable of the actual particle size of the sample is determined by substituting the count values in an approximation formula into which the variable of the particle size is introduced, and furthermore the true density is determined by substituting this value of the variable in an operation formula for calculating the density.;COPYRIGHT: (C)1993,JPO&Japio