Bucky Tray in Radiology: Function & Models
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A bucky tray is the drawer-like holder inside a bucky stand that the X-ray cassette slides into before exposure. In radiology, the bucky tray works with the anti-scatter grid: the tray holds the film steady, and the grid — which moves inside the tray — removes scattered radiation so the image stays sharp.
Function of the bucky tray
The bucky tray does three jobs:
1.Holds the cassette — the tray is sized for standard cassettes (14″ × 17″ and 17″ × 17″) and keeps them flat and stable during exposure.
2.Carries the grid — the anti-scatter grid sits inside the tray. When the X-ray is taken, a reciprocating mechanism moves the grid sideways so its lead lines blur and do not appear on the image.
3.Aligns with the tube — the tray’s position is adjustable, so the cassette center can be aligned with the X-ray tube for a correct source-to-image distance.
Types of bucky trays
Manual bucky tray — the tray is positioned by hand and locked mechanically. This is the most common and most economical type.
Electric bucky tray — the tray moves with a motor, which is convenient for heavy flat panel detectors and for high-volume departments.
Table bucky tray — built into the examination table for supine patients.
Vertical bucky tray — built into a vertical bucky stand for chest and spine views.
Specifications
Tray sizes: 14″ × 17″ (356 × 432 mm) and 17″ × 17″ (432 × 432 mm)
Grid: 10:1 ratio, 103 lines/inch, 180 cm focal length
Compatible media: film cassette, CR IP board, flat panel detector
Buying tips
When buying a bucky tray, check that it matches your cassette size and that the grid can be removed for DR operation. For departments that already use flat panel detectors, choose a tray designed for digital detectors. Newheek supplies manual and electric bucky trays as part of its vertical bucky stands, factory-direct with ISO 13485 and CE certification.
Frequently asked questions
Q: Can I use a bucky tray without a grid?
Yes. If your detector does not need an anti-scatter grid, the grid can be removed and the tray used as a plain cassette holder.
Q: What size bucky tray do I need?
If you use 14″ × 17″ cassettes (the medical standard), choose a 14″ × 17″ tray. Use a 17″ × 17″ tray only if you work with large-format detectors.
Q: Is the bucky tray included with the bucky stand?
Yes. Newheek bucky stands include the bucky tray and grid as standard. For pricing, email postmaster@newheekxray.com — quotation within 24 hours.
Related: Vertical Bucky Grid Stand Features · Bucky in Radiology: Terminology Guide