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X-ray Diffraction Systems
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X-calibre RTXDS
Low-cost, real-time, side-reflection, Laue
system
X-calibre RTXDB
World’s first real-time,
true back-reflection, Laue system
X-calibre RTXDB-HD
Heavy-duty version of RTXDB for use with
heavy castings
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Essential for every single-crystal-casting facility
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Download National Physical Laboratory Report No 112
Improving Single-Crystal Orientation Determination for Advanced
Nickel-Based Alloys |
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X-calibre RTXDS is a low-cost version, employing a single detector
with maximised active faceplate area. This allows the detector to be
positioned close to the collimator, at a reduced angle to optimise component
clearances. This version gives the best image quality with freedom from
obscured area at the centre. It is ideal for shooting small components and
seeds. Working distance and R-value shots
are set up using a mechanical pointer, which can be viewed by an optional
CCTV system. |
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X-calibre RTXDB employs a butted array of four detectors, assembled
around the collimator to form a compact, large-area imager. This enables the
X-ray beam to pass through a small hole, at the centre of the scintillator,
to give a true-back-reflection configuration. Geometry-correction is
applied, to remove distortions and assemble the four images as one. The
larger area allows increased working distances, with minimal dead-space at
the centre. This configuration gives excellent component clearances and
flexibility of working distance. |
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X-calibre RTXDB-HD
Heavy duty version of RTXDB true-back-reflection system, for use with
heavy and deeply recessed castings. A heavy-duty lift column provides
vertical travel whilst horizontal travel is achieved by moving the tube
tower/detector assembly. Heavy parts and fixtures can be easily manipulated
using an airlift base fed by a low pressure air supply. Safe handling is
ensured by release of air pressure when the edge of the table is reached.
Essential for platform boundary and general
R-value shots on large castings. |
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All systems
employ a labyrinth-constructed, radiation-safety enclosure with
sliding-door, equipped with cross-monitored safety switches and solenoid
locking. HV Power Supply operation and monitoring of safety circuits Is
via a separate Shutter-control/Interlock unit. X-rays on, shutter operation
and door opening are restricted, subject to status of protective
interlocks. Internal and external emergency stops are also provided. |
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Image acquisition and processing
Images
can be captured using a fast, multi-core computer operating in a Windows 7
environment. This is equipped with single or quad image-acquisition
hardware, allowing real-time viewing with recursive averaging and geometry
corrections. The image can be integrated, enhanced and background-cancelled
prior to pattern matching. A computer-generated overlay is centred on a
selected major pole and rotated to achieve a pattern match.
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Pattern matching The matching operation is executed,
using a unique SpacePilot 3D-CAD controller, by small movements of the thumb
and forefinger. Selection of three overlays and all other functions
associated with pattern properties and matching are controlled by push
buttons. Facilities are provided for adjustment of SpacePilot sensitivities
and other parameters |
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Calculations and data-processing
Crystallographic orientation angles relative to the component reference
plane and reference direction are derived by calculation, using either
European or USA conventions. All measurements are automatically made within
the unit triangle containing the reference direction. Relative orientations
may also be calculated. Results can be transferred via a network connection
to database or production-control system. |
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System setup and calibration Groups of
spots may be added to, or deleted from, the overlay by editing tables of
Miller indices. Working distance, system geometry, country/convention,
calculation methods, passwords and pattern parameters can be set up as
required. The overlay can be scaled and centred to match a reference
pattern obtained from a silicon standard test block. Calibration data is
automatically saved to a Cal.dat file.
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Specification
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- Quad, intensified, camera array
- Excellent component clearances
- Total flexibility of working distance
- Minimal obscured area at centre
- Essential for R-value shots on large castings
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Side-reflection Detector
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- Single detector. Active area 80mm dia
- No obscured area at centre
- Maximised active area at faceplate
- Less susceptible to background fluorescence
- Reduced system cost
- Ideal for small parts and seeds
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Back-reflection Detector
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- Quad detector array. Active area 104mm sq
- Excellent component clearances
- Total flexibility of working distance
- Minimal obscured area at centre
- Essential for R-value shots on large
castings
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X-ray Source
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- 3kW HV Power Supply with virtual control from PC.
- Shutter Control/Interlock Unit with over-temp/flow-rate protection
- X-rays on, shutter operation and door opening, restricted subject to
status of protective interlocks.
- Tungsten or molybdenum-anode, fine-focus, tube
- 0.64mm single-pinhole collimator with beam scraper
- Air-cooled water chiller (water cooling optional)
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Positioning System
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- Motorised, heavy-duty, XY drives with 160mm horiz travel X 200mm
vertical (400mm on HD version), set by limit switches
- Variable speed control by joystick
- Manual, heavy-duty, Z positioning stage
- Load capacity 20 kg (100kg on HD version)
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Cabinet
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- Labyrinth-constructed, radiation-safety enclosure
- Leaded-acrylic front window.
- Sliding door with cross-monitored safety switches and solenoid
locking
- Fluorescent and low-voltage-halogen work lamps
- Fork-lift and pallet-truck compatible
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Hardware
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- Industrial, high-speed, multi-core, Windows-7 machine
- Single or quad frame-grabber/s
- DVD-RW and SATA III drives
- 1920 X 1080 flat-panel 23" display
- Network connection to database/production-control system
- Keyboard/Optical Mouse/SpacePilot control
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Software
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- Windows-7-Professional operating system
- Single or quad image-acquisition and processing with geometry
- correction, flat-field correction, recursive averaging, integration,
background extraction and cancellation with variable gain/offset
- Fast Laué pattern selection/matching/analysis by SpacePilot or
alternative mouse-operated, on-screen, controls
- Back-reflection or variable-angle, side-reflection, modes
- Pattern generated from user-defined Miller Indices, working
distances and display colours
- Three overlays in gnomonic or stereographic projections
- USA mode:- gamma/delta/alpha/beta/R-value
- European mode:- gamma/delta/theta/alpha/R-value/kappa/rho/omega
- Menu selection of Primary/R-value modes
- Customised interface with user database/production-control system
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Jackson Electronics Ltd
Danethorpe Hill
Newark NG24 2PD
England |
jacksonelectronics |
Tel +44(0)1636 705718
Fax +44(0)1636 610120
www.jacksonelectronics.co.uk
sales@jacksonelectronics.co.uk |
© Jackson Electronics Ltd. Nov 2020 |
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