XIA also manufactures accessory X-ray equipment for
synchrotron and laboratory research environments:

PhosWatch Product Brochure (PDF format 345kB)
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.

An Evaluation of An Ultralow Background Alpha-Particle Detector
Ultra-low background alpha particle counter using pulse shape analysis
Electronic Background Rejection in Ultra-Low Background Alpha Particle Counter

The UltraLo-1800 is a low background alpha-particle counter that reflects 6 years of continued development from XIA's initial technology discovery and patent application.

The UltraLo-1800 is a revolutionary design 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.

This product is no longer available. XIA LLC will continue to archive documentation and provide support for existing customers.

HSC Product Brochure (116 KB)
User Manual for the HSC unit in PDF format (69 KB)
Assembly Drawing - exploded view (48 KB)

The Model PF4 is designed to reproducibly attenuate an x-ray beam by inserting up to four filter foils under remote manual or computer control. In the Model PF2S2, thick absorber blades replace two filters to form a focal plane shutter.

The PFCU-4 is a flexible control unit for both Model PF4 Filter Inserters and Model PF2S2 Filter/Shutter Units. In a 1-wide NIM module, it implements both manual control, via front panel switches, and remote control, via either TTL I/O or RS-232 daisy chain.

PF4/PF2S2 Filter/Shutter Module Datasheet
(Updated August 14, 2003 - 167 KB, PDF)
PF4/PF2S2 User's Manual
(NEW May 2004, 199 KB, PDF)
PF4/PF2S2 Installation Drawing
(31 KB, PDF)
PF4/PF2S2 Barrel Mating Drawing
(13 KB, PDF)

PFCU NIM Control Module Datasheet
(114 KB, PDF)
PFCU User's Manual
(NEW August 2005, 50 KB, PDF)
PFCU NIM Control Module Datasheet
(114 KB, PDF)

Detailed description in pdf format (88 KB)
Mechanical Drawing in pdf format (34 KB)

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, but with the addition of a patented design feature that creates active pumping of line-of-sight molecules. 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.