A low-noise preamplifier for gamma-ray sensors with add-on device for large-signal management

Articolo

Data di Pubblicazione:

2005

Citazione:

A low-noise preamplifier for gamma-ray sensors with add-on device for large-signal management / A. Pullia, F. Zocca. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 545:3(2005 Jun 21), pp. 784-792.

Abstract:

A new charge-sensitive preamplifier for High Purity Germanium gamma-ray detectors has been built and tested. It comprises an over-load recovery device that reduces the dead time brought about by hits of energetic particles. The amplitude of the large signals is reconstructed from Time-Over-Threshold measurements performed along the reset transients. Using such a technol. an extremely wide energy range of 10 keV to 30 MeV, or 70 dB, is obtained. With a count rate of 6 kHz a resoln. of 1.1 keV fwhm is obtained on the 152Eu 122 keV line and of .apprx.5 perthousand on pulser lines in the energy range of 5-30 MeV.

Tipologia IRIS:

01 - Articolo su periodico

Keywords:

γ-ray spectroscopy; Fast reset preamplifier; Low noise preamplifier; Wide dynamic range preamplifier

Elenco autori: