Total Measurement Calorimetry

A concept to improve hadron calorimetry is presented. The basic idea is to determine the electromagnetic component of hadronic showers on an event-by-event basis using the measurement of Cerenkov light produced in a transparent absorber material. The performance of such a novel calorimeter concept has been tested in parts. The tests revealed the difficulty to measure a Cherenkov signal for through-going muons, due to the small amount of light produced and detected. An attempt to improve the light yield using wavelength shifting fibers to collect the light produced in the absorber material.