FAST-RESPONSE FUEL ROD CALORIMETER FOR 36 INCH FUEL COLUMNS*

Year
1974
Author(s)
R. B. Perry - Argonne National Laboratory
N.S. Beyer - Argonne National Laboratory
R.N. Lewis - Argonne National Laboratory
Abstract
The primary interest in fuel rod calorimeters is due to the high measurement precision attainable with such instrumentation. However, for this interest to be sustained by those who need to make safeguards-type inventory control measurements , it must have a relatively fast measurement-response-time. This report describes the design features and the results of evaluation tests of a new, fastresponse, fuel rod calorimeter that can be used to nondestructively measure a 36 inch fuel column (FFTF size) of mixed-oxide fuel. With this instrument measurements can be made in 13 to 23 minutes with an accuracy of ± 0.12 to 0.13% relative.