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DGF Products, DXP Products, PXI Support Products, CAMAC Support Products, Other Products


XIA Digital Pulse Processors: DGF versus DXP

The Digital X-ray Processor (DXP) and Digital Gamma Finder (DGF) share much of their underlying architecture but are geared toward different applications. This brief description is intended to help customers decide which family of instruments is most appropriate for their application.

The DXP employs a field programmable gate array (FPGA) as a 'firm-wired' yet fully programmable digital pulse shaper and pileup rejection unit in combination with a digital signal processor (DSP) that oversees pulse-height data collection according to user settings. Incoming data can be gated and resolved into separate banks of spectrum memory in real time as directed by external timing signals, allowing a wide variety of spectroscopy experiments, e.g. MCA mapping and SCA mapping. The DXP's dead time per event is extremely low, yielding industry-leading output data rates of over 700,000 cps (in full MCA mode!). In short, the DXP is a versatile digital spectrometer with industry-leading performance at very high incident rates. Please visit the DXP Products pages for further details.


The DGF family is intended for more sophisticated signal processing applications that require pulse-shape analysis and/or coincidence triggering. With the addition of a FIFO memory for digital signal capture and a flexible, two-level triggering system that can span multiple modules, the DGF's DSP can not only make pulse-height measurements but can also work in real time on various user assigned pulse shape analysis tasks, such as realtime ballistic deficit correction. Incoming data may also be processed and sorted according to pulse shape information, e.g. risetime, and further constrained by coincidence timing information from other detector elements in the DGF system. The DGF poses solutions to a wide range of extremely demanding pulse processing applications in the areas of nuclear physics, strip detectors, and very high resolution gamma-ray spectroscopy. Please visit the DGF Products pages for further details.

Please contact XIA for help deciding which product is right for your application.



DIGITAL GAMMA FINDER (DGF) INSTRUMENTS


The Digital Gamma Finder (DGF) is a pulse processor with unique capabilities for both real-time pulse shape analysis and multiparametric data acquisition. With a general and highly programmable design for digital signal capture and processing, the DGF integrates events distributed over many detectors to process and store data according to user specifications.

 

microDGF - Micro-power, Miniature DGF for Embedded Applications

microDXP - Datasheet
(PDF format, 4.19MB, April 2015)

The microDXP is a complete, low power digital spectroscopy system on a credit card-sized PC board. It can easily be incorporated into a wide range of embedded and handheld spectroscopy systems, lowering cost and speeding the time-to-market. Its small size allows for very compact assemblies and its low power consumption assures thermal stability and extended battery life. The microDXP design was completely overhauled in 2015. Faster clock speeds, a new 14-bit ADC and improved analog design have yielded dramatic improvements in energy resolution, peak stability and throughtput!

Micro-power, credit-card-sized DGF for portable applications.
 

Pixie-Net - 2-8 Channel, 125-500 MHz Desktop Digital Processor

Pixie-Net - Datasheet
(PDF format, 599kB, March 2017)

The Pixie-Net is a multi-channel digital spectrometer for radiation detectors combined with an embedded Linux system in desktop format with integrated networking and USB resources. Designed for high-precision coincidence gamma-ray spectroscopy using HPGe detectors, scintillators, or silicon detectors, the Pixie-Net offers not only detector signal digitization and waveform capture but also pulse height measurements, on-board energy histograms, time stamping and constant fraction timing, pileup inspection, external gating and online pulse shape analysis. Besides nuclear spectroscopy, the Pixie-Net can be used for neutron/gamma discrimination, time-of-flight measurements, and coincidence/anti-coincidence measurements.


NEW Pixie-Net

2-8 Channel, 125-500 MHz Desktop Digital Processor
 

DGF Pixie-32 - 32-Channel Low Cost PXI Express Digital Processor

Taking advantage of new low cost, high density ADC components, this new member of XIA’s Pixie spectrometer family is designed to address needs in the nuclear physics community for instrumenting large scale radiation detectors at relatively low cost. The Pixie-32 is a true multi-channel spectrometer that not only digitally captures incoming waveforms but also provides good time and energy resolution at a per channel cost up to 10 times lower than other digital readout modules of similar capability.

Pixie-32 Datasheet
(PDF format, 342KB, April 2016)


NEW Pixie-32

32-Channel Low Cost PXI Express Digital Processor
 

DGF Pixie-4 Express - 125-500MHz Multichannel DGF

The DGF Pixie-4 Express (Pixie-500e) is a multichannel data acquisition system for fast radiation detectors in nuclear physics and other applications requiring coincident radiation detection. It provides digital spectrometry and waveform acquisition for four input signals per module; several modules can be combined into a larger system. The DGF Pixie-4 Express is based on the CompactPCI/PXI Express standard which allows data transfer rates from Pixie-4 memory to the host computer of up to 800MB/s. In a suitable PXI Express chassis, multiple modules can be read out in parallel. Commercial CompactPCI or CompactPCI Express modules - DSP processor boards, HV supplies, embedded host computers - can be added to build a flexible standalone data acquisition and analysis system.

DGF Pixie-4e - Datasheet
(PDF format, 271kB, October 2015)


Pixie-4 Express

125-500MHz Multichannel DGF in PXIe format
 

DGF Pixie-500 Express - 500MHz Multichannel Digital Gamma Finder

The DGF Pixie-500 Express (Pixie-500e) is a multichannel data acquisition system for fast radiation detectors in nuclear physics and other applications requiring coincident radiation detection. It provides digital spectrometry and waveform acquisition for four input signals per module; several modules can be combined into a larger system. The DGF Pixie-500 Express is based on the CompactPCI/PXI Express standard which allows data transfer rates from Pixie-500 memory to the host computer of up to 800MB/s. In a suitable PXI Express chassis, multiple modules can be read out in parallel. Commercial CompactPCI or CompactPCI Express modules - DSP processor boards, HV supplies, embedded host computers - can be added to build a flexible standalone data acquisition and analysis system.

DGF Pixie-500e - Datasheet
(PDF format, 1.52MB, April 2015)


Pixie-500 Express

500MHz Multichannel Digital Gamma Finder in PXIe format
 

DGF Pixie-500 - 500MHz Multichannel Digital Gamma Finder

The DGF Pixie-500 is a multichannel data acquisition system for fast radiation detectors in nuclear physics and other applications requiring coincident radiation detection. It provides digital spectrometry and waveform acquisition for four input signals per module; several modules can be combined into a larger system. The DGF Pixie-500 is based on the CompactPCI/PXI standard which allows data transfer rates from Pixie-500 memory to the host computer of up to 109MB/s. Commercial CompactPCI modules - DSP processor boards, HV supplies, embedded host computers - can be added to build a flexible standalone data acquisition and analysis system.

DGF Pixie-500 - Datasheet
(May 2010, 580KB, PDF format)

500MHz Multichannel Digital Gamma Finder
 

DGF Pixie-16 - Sixteen channel PXI Module

The DGF Pixie-16 provides digital spectrometry and waveform acquisition for 16 input signals per module; several modules can be combined into a larger system. The Pixie-16 is operated in a 6U CompactPCI/PXI chassis with high current power supplies.

DGF Pixie-16 - Datasheet
(PDF format, 1.35MB, April 2015)

Four integrated DGF channels on a single-width PXI card
 

DGF Pixie-4 - Four channel PXI Module

The Pixie-4 is a multichannel data acquisition system for nuclear physics and other applications requiring coincident radiation detection. It provides digital spectrometry and waveform acquisition for four input signals per module; several modules can be combined into a larger system. The DGF Pixie-4 is based on the CompactPCI/PXI standard which allows data transfer rates from Pixie-4 memory to the host computer of up to 109MB/s. Commercial CompactPCI modules - DSP processor boards, HV supplies, embedded host computers - can be added to build a flexible standalone data acquisition and analysis system.

DGF Pixie-4 - Datasheet
(PDF format, 959KB, April 2015)

Four integrated DGF channels on a single-width PXI card
 
 


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DGF Products, DXP Products, PXI Support Products, CAMAC Support Products, Other Products

 
DIGITAL X-RAY PROCESSOR (DXP) INSTRUMENTS


The moderately priced Digital X-ray Processor (DXP) combines analog and digital noise reduction, pulse pileup inspection and multi-channel analysis to produce very high quality pulse-height spectra under full computer control. Utilizing state of the art digital electronics, the DXP sets a new standard for x-ray and gamma-ray spectroscopy.

 

microDXP - Micro-power, Miniature DXP for Embedded Applications

microDXP - Datasheet
(PDF format, 4.19MB, April 2015)

The microDXP is a complete, low power digital spectroscopy system on a credit card-sized PC board. It can easily be incorporated into a wide range of embedded and handheld spectroscopy systems, lowering cost and speeding the time-to-market. Its small size allows for very compact assemblies and its low power consumption assures thermal stability and extended battery life. The microDXP design was completely overhauled in 2015. Faster clock speeds, a new 14-bit ADC and improved analog design have yielded dramatic improvements in energy resolution, peak stability and throughtput!

Miniature, semi-custom, low power DXP for embedded applications
 

FalconX

FalconX Datasheet
(PDF format, 2288KB, August 2015)

The FalconX is a radically new digital signal processor that combines a cutting-edge hardware platform with patented SITORO® signal processing technology, uniting unprecedented technical performance with an innovative 'plug & play' design. XIA's FalconX family of digital pulse processors achieve unprecedented throughput at high count rates. For example, they can operate at 1Mcps with only 12% dead-time. Applications include high rate synchrotron X-ray analysis, such as XAFS, and high rate XRF.

The FalconX1, FalconX4 and FalconX8 models are suited to popular detector array sizes. For larger systems, multiple FalconX8 units are easily combined on a fast network, with the option of clean rack mounting. XIA designed the FalconX family with simplicity and flexibility in mind. They are compact, highly portable, compatible out of the box with virtually all detectors, and require minimal setup.


FalconX Family

Ultra High Performance
Digital X-Ray Processors with
SITORO® Algorithms
 

DXP-XMAP

DXP-XMAP - Datasheet
(PDF format, 210KB, November 2016)

The DXP-XMAP packages 4 high speed digital spectrometers into a single 3U PXI/CompactPCI module. The DXP-XMAP offers excellent noise performance, which suits it for energy dispersive x-ray measurements over the extended energy range 0.2-100 keV using multi-element detector arrays with preamplifiers of any gain. It offers computer control over all amplifier and spectrometer controls including gains, peaking times, and pileup inspection criteria.

The DXP-XMAP is the first XIA product to support a new set of mapping modes, allowing for full spectrum or multi-SCA acquisition at sub-millisecond dwell times. As with all DXP products, the XMAP features excellent noise performance, which suits it for energy dispersive x-ray measurements over the extended energy range 0.2-100 keV using multi-element detector arrays with preamplifiers of any gain. The XMAP offers computer control over all amplifier and spectrometer controls including gains, peaking times, and pileup inspection criteria.

Four independent DXP channels on a CompactPCI/PXI card.
 

DXP Mercury

Mercury / Mercury-4 - Datasheet
(PDF format, 174KB, November 2016)

Given the high data transfer rates of the USB 2.0 interface, the DXP Mercury is suited for high-speed XAFS and x-ray scanning applications.

The Mercury joins a growing list of XIA products that support high speed mapping modes, allowing for continuous multi-MCA or multi-SCA acquisition at sub-millisecond dwell times. The Mercury is sold as either a benchtop standalone instrument or as an OEM printed circuit board intended for emerging embedded applications that demand performance and fast readout.

As with all DXP products, the Mercury features excellent noise performance, which suits it for energy dispersive x-ray measurements over the extended energy range 0.1-100 keV using multi-element detector arrays with preamplifiers of any gain. The Mercury offers computer control over all amplifier and spectrometer controls including gains, peaking times, and pileup inspection criteria.

DXP channel (benchtop enclosure or OEM circuit-board) with mapping functions, USB 2.0 interface and custom outputs.
 
Single DXP channel with mapping functions, USB 2.0 interface and custom outputs.

DXP Mercury-4

Mercury / Mercury-4 - Datasheet
(PDF format, 174KB, November 2016)

Given the high data transfer rates of the USB 2.0 interface, the DXP Mercury-4 is suited for high-speed XAFS and x-ray scanning applications.

The Mercury-4 joins a growing list of XIA products that support high speed mapping modes, allowing for continuous multi-MCA or multi-SCA acquisition at sub-millisecond dwell times. The Mercury-4 is available in a benchtop enclosure or as an OEM printed circuit board intended for emerging embedded applications that demand performance and fast readout.

As with all DXP products, the Mercury-4 features excellent noise performance, which suits it for energy dispersive x-ray measurements over the extended energy range 0.1-100 keV using multi-element detector arrays with preamplifiers of any gain. The Mercury-4 offers computer control over all amplifier and spectrometer controls including gains, peaking times, and pileup inspection criteria.

4 DXP channels with mapping functions, USB 2.0 interface and custom outputs.
 
Four DXP channels with mapping functions, USB 2.0 interface and custom outputs.
 


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DGF Products, DXP Products, PXI Support Products, CAMAC Support Products, Other Products

 

PXI Support Products

 

National Instruments Crates and Controllers

XIA is pleased to provide National Instruments PXI equipment for resale. Complete systems can be assembled and tested at XIA before delivery.

NIM Standard CAMAC equipment crate with SCSI controller (other modules also shown)

Preamplifier Power Distribution

The PXI-PDM is manufactured in a 3U CompactPCI/PXI form factor and can reside in any peripheral slot (2-8) of a standard 3U chassis. Slot 2, the PXI Star Trigger slot, is the preferred location, as it allows the use of some additional functions.

The PXI PDM provides four principal functions, namely
• Preamplifier power supply for a detector
• Clock distribution
• Access to backplane trigger signals

The X-ray Preamplifier Power Supply (XPPS) provides power for 50 or more preamplifiers. The 19-inch rack-mount or benchtop unit contains linear power supplies that generate +/-12V @ 6.8 Amperes and +/-24V @ 4.8 Amperes, with very little noise. A rear panel ground strap is provided to eliminate ground loops, and should be connected to the PXI crate chassis.

Four front panel DSUB-9 connectors share the total current available from each voltage according to the NIM standard pinout.

Preamplifier Power and PXI Trigger Breakout Module
 
Preamplifier Power Supply for Multi-Element Detector Systems

EHQxxx: Programmable High Voltage Bias Supply for CAMAC

The EHQxxx modules provide a precision, low noise high voltage supply. Current limiting and TTL shutdown functions are selected via front panel controls, with voltage and current displayed on a front panel LCD.

Note that standard EHQxxx modules are designed for Eurocassette, and the PXI-modified version is available only from XIA.

EHQxxx datasheet (PDF format, 60KB)

EHQxxx manual (PDF format, 202KB)

Visit ISEG online for further description


ISEG EHQxxx

ISEG 0-2kV detector bias supply for CAMAC
 
 


Scroll down or click to view product abstracts....
DGF Products, DXP Products, PXI Support Products, CAMAC Support Products, Other Products

 
 
 

OTHER PRODUCTS

 

Model Ultra-LO 1800: Ultra Low Background Alpha Particle Counter

Brochure (PDF format 1.7MB)
Datasheet (PDF format 2.9MB)
Quick Start Guide (PDF format 1.7MB)
User Manual (PDF format 3.1MB)
Site Preparation Guide (PDF format 1MB)

The UltraLo-1800 is a revolutionary low background alpha-particle counter that employs Electronic Background Suppression to drive achievable background rates to 0.0001 alpha/cm2/hr or lower. This is a factor of 50 or more better than can be achieved by the conventional proportional counter systems that are now commercially available.

Ultra-LO 1800: Ultra Low Background Alpha Particle Counter

Model PhosWatch: Phoswich Well Detector for Radio-Xe Monitoring

PhosWatch Product Brochure (PDF format 1.5MB)
Development of a Phoswich Detector for Radioxenon Field Measurements
(PDF format 357kB)
Radioxenon Measurements with the PhosWatch Detector System
(PDF format 1267kB)

The PhosWatch detector is a plastic scintillator cell surrounded by a CsI crystal. The cell can be filled with samples containing small amounts of radioactive xenon or radon gas. Since these isotopes emit beta particles or conversion electrons simultaneously with gamma rays or X-rays, beta-gamma coincidence can be used to suppress the natural background and increase the detector's sensitivity. Due to the well geometry of the detector, beta particles are mainly absorbed in the plastic scintillator and photons are mainly absorbed in the CsI, which leads to characteristiv fast/slow pulses from beta-gamma coincidence events. Using pulse shape analysis algorithms implemented in the DGF Pixie-4, the PhosWatch can thus detect coincidences and simultaneously measure beta and photon energies with a single electronics readout channel.

PhosWatch detector

DIFFERENTIAL PUMP

Detailed description in pdf format
(PDF format, 1.11MB, April 2015)
User's Manual
(PDF format, 898KB, April 2011)

The XIA Models DP-0X differential pumps provide a cost effective means of providing a windowless, direct, line-of-sight transition between an ultra-high vacuum (UHV) region (< 1 x 10-9 Torr) and a high vacuum (HV) region (< 1 x 10-4 Torr). Differential pumps traditionally consist of a series of pumps separated from each other and from the UHV region by flow restricting throttles. The DP-03 adheres to this arrangement, consisting of a pair of throttles separated by an active pumping region. An adapter nipple on one end facilitates connection to HV, while an adapter cross on the other end makes the connection to the UHV system as well as providing ports for pressure monitoring, viewing, and attaching the user supplied secondary pump which completes the system.

Differential Pump offers windowless HV-UHV Isolation

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