MTR221/A - MTR221/A DHHS
MANUALE ISTRUZIONI / INSTRUCTION MANUAL
Modello/Model R221/A - R221/A DHHS
DESCRIPTION
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R221/A - R221/A DHHS - Description
Ralco srl
DESCRIPTION
Multilayer, square field, manual collimation system with a lightweight and compact
design intended for installation on mobile and stationary X-ray equipment. This device
has been designed and manufactured for skeletal investigations and ER applications.
The X-ray field is defined by six pairs of shutters, four of which are lead-lined. The six pairs of
shutters move perpendicularly within the X-ray field. Two pairs of brass shutters are located
near the focus, two are located near the entrance window and two are located near the exit
window of the X-ray beam from the collimator. The latter shutters serve to accurately define the
X-ray field edges.
Shutter movements are manual, controlled by two knobs on the collimator front panel.
CHARACTERISTICS
Mounting Plane at 80 mm (3.14") from the focus.
Continuous Film Coverage from Min: 00 x 00 cm to Max: 48 x 48 cm at 100 cm (40") SID.
Maximum Radiation Leakage: 150 kVp - 4 mA.
Accessory Guides are used for accessories and additonal filtration.
Retractable Tape mounted on a radiological unit, measures the distance between the
focus and the patient.
Halogen Lamp providing high luminosity for the X-ray field projection.
Minimum Inherent Filtration 2 mm aluminium equivalent.
GC-Led-5A timer board for light source supply and operation.
Fig. R221/A- R221/A DHHS Front Panel with Exterior Dimensions
This collimator may have the following optional items; a detailed description is provided in the
chapter O
PTIONAL ITEMS.