Analysis of the plate-out distribution in the VAMPYR-I experiments by PLAIN code

摘要

Fission products plate-out analysis code, PLAIN, was developed to calculate the plate-out distribution in the primary cooling system of High Temperature Gas-cooled Reactor (HTGR). As one of the verification works of the PLAIN code, calculations of the plate-out densities in VAMPYR-I experiments were carried out. The VAMPYR-I was a test equipment installed in the experimental HTGR in Germany, AVR, to investigate fission products plate-out behavior. The calculated plate-out densities were smaller than measured ones in the upper region of the test-tube of VAMPYR-I and it is considered that the difference is caused by the dust effect. (author). (ERA citation 19:000714)