Title :
A study of readout electronics based on TDC for the international linear collider TPC detector
Author :
Kaukher, Alexander ; Schäfer, Oliver ; Schröder, Henning ; Wurth, Rainer
Author_Institution :
Univ. Rostock
Abstract :
As a main tracking detector for the international linear collider, the time projection chamber (TPC) is required to have good momentum resolution. High granularity readout would need a large number of complicated and expensive flash-ADCs. To achieve the desired packing density of the TPC readout electronics one needs to have at least an order of magnitude more compact solution than any existing one. We study an alternative method of the TPC data readout, which is based on charge-to-time conversion technique and multi-hit time-to-digital converter (TDC). In our proof-of-principle experiment, we use the ASDQ circuit and commercial multi-hit TDC. The possible use of TDC based readout electronics was demonstrated with an ultra-violet laser test setup. TDC based readout electronics might be an alternative solution for the new precise TPC. Inherently low data transfer would reduce cabling, thus simplifying TPC end plate construction, weight and decreasing radiation length (X0) of the TPC end plate
Keywords :
convertors; linear colliders; particle detectors; readout electronics; time projection chambers; TPC detector; charge-to-time conversion; data readout electronics; data transfer; high granularity readout; international linear collider; multihit time-to-digital converter; time projection chamber; tracking detector; ultraviolet laser test; Charge measurement; Circuits; Current measurement; Detectors; Electronic equipment testing; Energy resolution; Particle tracking; Readout electronics; Spatial resolution; Variable speed drives;
Conference_Titel :
Real Time Conference, 2005. 14th IEEE-NPSS
Conference_Location :
Stockholm
Print_ISBN :
0-7803-9183-7
DOI :
10.1109/RTC.2005.1547405