A sampling gas hadron calorimeter with tower readout geometry has been constructed for a photoproduction experiment, E687, at Fermilab. This experiment has run in the Wide Band photon beam with photons of maximum energy of 450 GeV. The calorimeter consists of 28 120×82×1.75 in. Fe plates interspersed with planes of extruded aluminum proportional tubes. Capacitively induced signals on electrode pads with a cylindrical geometry are read out. The preamplifier and shaping electronics, constructed from surface mount devices, are mounted on the detector. The system has a dynamic range that spans the region from minimum ionizing particles (mip) to a few hundred mips. Calibrating the system response was done using muons, electronic test signals, and by recording the pulse height of an 55Fe source with a proportional counter. Results on the details of the performance of the calorimeter and its use as an online trigger are described.
Performance of the hadron calorimeter for fnal experiment E687
BOCA, GIANLUIGI;ARENA, VINCENZO;RATTI, SERGIO PEPPINO;VITULO, PAOLO
1990-01-01
Abstract
A sampling gas hadron calorimeter with tower readout geometry has been constructed for a photoproduction experiment, E687, at Fermilab. This experiment has run in the Wide Band photon beam with photons of maximum energy of 450 GeV. The calorimeter consists of 28 120×82×1.75 in. Fe plates interspersed with planes of extruded aluminum proportional tubes. Capacitively induced signals on electrode pads with a cylindrical geometry are read out. The preamplifier and shaping electronics, constructed from surface mount devices, are mounted on the detector. The system has a dynamic range that spans the region from minimum ionizing particles (mip) to a few hundred mips. Calibrating the system response was done using muons, electronic test signals, and by recording the pulse height of an 55Fe source with a proportional counter. Results on the details of the performance of the calorimeter and its use as an online trigger are described.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
