Abstract: CHECKING COMPUTATION AND INTERPOLATION FOR CONVERSION COEFFICIENT OF PHOTON AMBIENT DOSE EQUIVALENTChen Changmao；Liu Jinhua；Liu Dijin（China Institute of Atomic Energy，P．O．Box 275，Beijing 102413）ABSTRACT The checking computation and interpolation for conversion coefficient of photon ambient doseequivalent recommended by ICRU report 47 are given，and the suitable interpolation is put forward．Key wonds radiation protection photon ambient dose equivalent checking computation interpolation