Design of the front-end analog electronics for the ATLAS tile calorimeter

Anderson, K.; Gupta, A.; Merritt, F.; Oreglia, M.; Pilcher, J.; Sanders, H.; Shochet, M.; Tang, F.; Teuscher, R.; Wu, H.

doi:10.1016/j.nima.2005.06.048

Design of the front-end analog electronics for the ATLAS tile calorimeter

K. Anderson
(
- Barcelona, Autonoma U. and
- Chicago U.
)
,
A. Gupta
(
- Barcelona, Autonoma U. and
- Chicago U.
)
,
F. Merritt
(
- Barcelona, Autonoma U. and
- Chicago U.
)
,
M. Oreglia
(
- Barcelona, Autonoma U. and
- Chicago U.
)
,
J. Pilcher
(
- Barcelona, Autonoma U. and
- Chicago U.
)

2005

8 pages

Published in:

Nucl.Instrum.Meth.A 551 (2005) 469-476

DOI:

10.1016/j.nima.2005.06.048

Experiments:

CERN-LHC-ATLAS

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Abstract: (Elsevier)

We describe the design of the analog portion of an electronics system to process signals from the photomultiplier tubes of the ATLAS Tile Calorimeter. The system has a 16-bit dynamic range and is capable of measuring energy depositions in a single calorimeter cell from ∼ 20 MeV to ∼ 1.3 TeV . In order to maintain the calorimeter calibration at the 1% level the system includes a charge injection circuit and a current integrator for use with a cesium source system and with the time-averaged currents produced by the LHC. The system also provides a signal for an analog adder which produces an energy sum for each calorimeter tower. Over 10,000 channels of this system have been constructed and delivered for use.