Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 60: Instrumentation XVII
HK 60.2: Vortrag
Donnerstag, 17. März 2016, 16:45–17:00, S1/01 A4
PADI ASIC for straw tube read-out — •Jerzy Pietraszko1, Michael Träger1, Jochen Frühauf1, Christian Schmidt1, and Mircea Ciobanu2 for the CBM collaboration — 1GSI, Darmstadt, Germany, — 2ISS Bucharest, Romania
A prototype of the CBM MUCH straw tube detector[1] consisting of six individual straws of 6mm inner diameter and 220 mm length filled with Ar/CO2 gas mixture has been tested at the COSY accelerator in Jülich. The straw tubes were connected to the FEET-PADI6-HDa PCB[2] equipped with PADI-6 fast amplifier/discriminator ASIC. As a reference counter in this measurement the scCVD diamond detector[3] has been used delivering excellent timing, time resolution below 100ps (sigma), and very precise position information, below 50 μm. The demonstrated position resolution of about 160 μm of the straw tube read out with PADI-6 ASIC confirms the capability of the PADI chip and puts this development as a very attractive readout option for straw tubes and wire chambers.
[1] V. Peshekhonov et al., ''Straw tube subsystem of the CBM muon detector'', Physics of Particles and Nuclei Letters, March 2012, Volume 9, Issue 2, pp 172-179.
[2] M. Ciobanu et al., ''PADI, an ultrafast Preamplifier - Discriminator ASIC for Time of Flight Measurements'', Nuclear Science, April 2014, IEEE Transactions ,Volume 61, Issue 2, pp 1015-1023.
[3] J. Pietraszko et al., ''Diamonds as timing detectors for minimum-ionizing ...'', NIM A 618(2010)121-123