Fission Product Transport and Source Terms in HTRs: Experience from AVR Pebble Bed Reactor

Table 2

Lower limits of specific hot gas activities [Bq/m³_STP] as measured in VAMPYR-II (1987-88) for hot gas temperatures as given in brackets.

Nuclide	VII-01 (930^∘C)	VII-02 (900^∘C)	VII-03 (700^∘C)	VII-04 (700^∘C)
Cs-137	402	112	57	55
Ag-110 m	126	48	5	4