Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Kernphysik     Collection: Theoretical Particle and Astro-Particle Physics     Display Documents



  history
ID: 510635.0, MPI für Kernphysik / Theoretical Particle and Astro-Particle Physics
Cryogenic Performance of a Low-Noise JFET-CMOS Preamplifier for HPGe Detectors
Authors:Budjas, Dusan; Cattadori, Carla; D'Andragora, Alessio; Pullia, Alberto; Riboldi, Stefano; Zocca, Francesca
Language:English
Date of Publication (YYYY-MM-DD):2010-04-14
Title of Journal:IEEE Transactions on Nuclear Science
Volume:57
Issue / Number:2
Start Page:737
End Page:742
Review Status:not specified
Audience:Experts Only
Abstract / Description:Cryogenic low-noise charge sensitive preamplifiers have been developed and realized for the GERmanium Detector Array (GERDA). An integrated JFET-CMOS preamplifier, which is fully functional at cryogenic temperatures, has been tested in conjunction with an unsegmented p-type HPGe detector. Both the crystal and the preamplifier were operated inside a liquid nitrogen dewar at 77 K. The detector capacitance was ~60 pF. An optimum resolution of 1.6 keV FWHM has been obtained for the pulser line at 6 microsecond shaping time. A resolution of 2.1 keV FWHM has been achieved for the 1.332 MeV line from a 60Co source. A wide bandwidth (rise time of ~16 ns) permits use of pulse-shape analysis techniques to localize the position of the photon interactions inside the crystal. A low power consumption (~23 mW) makes the preamplifier suitable for a multi-channel array of germanium detectors.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Kernphysik/Group of M. Lindner
External Affiliations:Univ Milan, Dept Phys, I-20133 Milan, Italy
Univ Aquila, I-67010 Laquila, Italy
Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Laquila, Italy
Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20133 Milan, Italy
Identifiers:ISSN:0018-9499
DOI:10.1109/TNS.2009.2038697
URL:http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?rel...
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.