XSPRESS2

XSPRESS2 is a unique adaptive pulse processing technology for ultra-dilute spectroscopy applications. Instead of a fixed "shaping time", the system samples at 80MHz and provides the optimum count rate / noise ratio for each data point. The readout system is highly capable of reading out both germanium multi-element detectors and silicon drift diode systems.

The system has been upgraded and implemented on the Diamond Light Source at beamlines B18, I18 and I20 (Scanning Branch)

"The data are really impressive. The first set of EXAFS spectra (those at various count rates) clearly shows that the dead-time correction is reliable even up to 0.5Mcps. High count rates are really crucial at modern synchrotrons as the fluxes are becoming ever higher." Konstantin Klementiev, CLÆSS Beamline, ALBA, Barcelona

A non exhaustive list of papers written using the XSPRESS system is available here

The XSPRESS2 datasheet

High rate / noise ratio

Click for some sample data from B18 and I18

GDA Software

Enabling adaptive noise / rate thresholding, detector element selection and ROI windowing "Very easy to use"-Andy Dent, PBS, B18 Diamond. Further details at OpenGDA

Clear Multichannel Layout

High quality components in a clear layout ensures correct connections and easy setup

LEMO connections for supreme connectivity

Secure connections, precision contacts, high reliability and premium materials ensure perfect connections every time

Compact NIM and VME units

1U wide units enable even the largest systems to be packed tidily

High Capacity System

No practical channel limit on the system. Recently commissioned at Diamond on a 36 channel multielement germanium detector

Specifications

Count rate Limited in hardware design to 5x10^6 counts/ channel/ second.

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