Microcalorimeters are cryogenic radiation detectors that measure the energy of incident photons or particles by the increase of temperature in an absorber. They are capable of achieving ultra-high energy resolution, but only with small active volumes and pulse decay...
P. M. Grudberg
Digital Data Acquisition Modules for Instrumenting Large Segmented Germanium Detector Arrays
XIA LLC has developed a 16-channel digital gamma-ray spectrometer (DGF Pixie-16) and associated electronics for instrumenting segmented germanium detector systems with large numbers of channels. The Pixie-16 is a CompactPCI/PXI-based data acquisition module equipped...
Clock and Trigger Synchronization Between Several Chassis of Digital Data Acquisition Modules
In applications with segmented high purity Ge detectors or other detector arrays with tens or hundreds of channels, the high development cost and limited flexibility of application specific integrated circuits outweigh their benefits of low power and small size. The...
CHELSI: A Portable Neutron Spectrometer for the 20-800 MeV Region
CHELSI is a CsI-based portable spectrometer being developed at Los Alamos National Laboratory for use in high-energy neutron fields. Based on the inherent pulse shape discrimination properties of CsI(Tl), the instrument flags charged particle events produced via...
CHELSI: Recent developments in the design and performance of a high-energy neutron spectrometer
The intrinsic pulse shape discrimination properties of CsI(Tl) form the basis of a high-energy neutron (>20 MeV) spectrometer (CHELSI) currently being developed at LANL that shows promise in satisfying the requirements of an ideal survey meter; lightweight,...