ROTOR: the VLSI switched current amplifier for high-rate high-resolution spectroscopy with asynchronous event occurrence

Author

Pullia, A. ; Fiorini, C. ; Gatti, E. ; Longoni, A. ; Buttler, W.

Author_Institution

Dipt. di Elettronica e Inf., Politecnico di Milano, Italy

Volume

45

Issue

6

fYear

1998

fDate

12/1/1998 12:00:00 AM

Firstpage

3179

Lastpage

3183

Abstract

In this paper the authors present a novel JFET/CMOS signal processor, ROtational TrapezOidal Readout (ROTOR), conceived for high-rate high-resolution X-ray spectroscopy with asynchronous event occurrence. The circuit is of time-variant nature, uses no fast channel as a trigger, and displays a quasitrapezoidal weight function with virtually no exponential tail. Such a finite-width weight function is typically nearly optimal for submicrosecond processing times and is adequate when intense radiation fluxes must be handled. The filter also permits us to suppress possible ballistic deficits

Keywords

JFET integrated circuits; VLSI; X-ray spectrometers; nuclear electronics; silicon radiation detectors; switched current circuits; time-varying filters; ROTOR; Si; VLSI switched current amplifier; asynchronous event occurrence; ballistic deficits; finite-width weight function; high-rate high-resolution X-ray spectroscopy; high-rate high-resolution spectroscopy; intense radiation fluxes; quasitrapezoidal weight function; submicrosecond processing times; Circuits; Electrons; Filters; Noise shaping; Semiconductor optical amplifiers; Shape; Signal processing; Spectroscopy; Synchrotrons; Very large scale integration;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.736197

Filename

736197