Göttingen 1997 – wissenschaftliches Programm
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HK: Hadronen und Kerne
HK 47: Detektoren III
HK 47.7: Vortrag
Mittwoch, 26. März 1997, 15:45–16:00, HS K
Hardware for Pulse-Shape Analysis of Composite and Segmented Detectors — •A. Georgiev1,2, K. G"ocking1,3, Th. Rose1, E.v/d Meer4, W. Gast4, and R.M. Lieder4 — 1FH M"unster, FB Physikalische Technik — 2former address: KFA-IKP J"ulich — 3present address: HL-ELMD Siemens AG, D"usseldorf — 4KFA-IKP J"ulich
The efficiency and energy resolution of the Composite and Segmented Ge
detectors used in in-beam experiments depend on the proper realization of
the add-back mode and Doppler correction. Digital processing of the
detector signals [1] provides means to implement the required signal shape
analysis. However, a huge processing power is needed to perform the digital
analysis on-line. Therefore, a dedicated processing method has been
worked-out. It utilizes pipe-line systolic processing and time-variant
decimation. An Application Specific Integrated Circuit (ASIC) as a
pre-processor and a DSP module as a post-processor have been
designed based on these techniques. The method and its
implementations as well as its integration in the main processing
stream is discussed.
(Supported in part by the MWF-NRW (program Mikrosystemtechnik), FH M"unster,
BMBF (06JU670), EU (ERBCHBGCT 940596) and KFA (TTB/V292.01.93))
[1] A.Georgiev, at al.; IEEE Trans.Nucl.Sci., Vol.40, No.4, 1993.