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Large Water Phantom, with Manual Drive Unit

Large Water Phantom, with Manual Drive Unit
Large Water Phantom, with Manual Drive Unit
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Large Water Phantom, with Manual Drive Unit.


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Large Water Phantom, with Manual Drive Unit.

Manual Drive Unit
When using the manual drive unit the chamber is manually positioned in the X or Y axis using the scale on the side of the water phantom.  The manual drive unit is held in place by two tightening screws.  The chamber is adjusted on the Z axis using the manual drive.  The maximum vertical travel is 30 cm.  A precision 2:1 gear box allows for quick vertical motion.  The large hand wheel provides ease of motion and a 0.1 mm mechanical increment counter provides an accurate readout of the vertical position of the chamber.  One turn of the hand wheel is equal to 3.0 mm of travel.  The mechanical counter can be reset to zero at any position by turning the reset knob (located on the side of the counter) counter clockwise.

• Rugged construction

• Precision ground shaft

• Quadrature X1 counting mode

• Two sizes of water tanks are available

• Meets AAPM-51 and IAEA TRS-398 dosimetry protocol requirements

Water Phantom
The water phantom has 1/4" (0.635 cm) thick clear acrylic sides, a 3/8" (0.953 cm) thick white acrylic bottom, and a clear acrylic support rim at the top of the phantom.  The white bottom allows for easy viewing of the chamber and cross hair shadows.  The water phantom has a tank plug and a drain valve assembly.  A 5' (1.5 m) drain hose is also included.  Two sides of the water phantom have ±16 cm scales with millimeter markings.  The water phantom is available in two sizes:  large and small.

A 46 cm aluminum depth scale with millimeter markings is included with the water phantom.  The depth scale has a half-round cutout at the base which allows positioning on the active area of a RPD waterproofing tip (Item 691-030 and 691-032) for a Farmer style chamber.  When using the 46 cm aluminum depth scale on the active chamber area of a waterproof Farmer style chamber (all manufacturers) to measure water depth, subtract 1 mm from depth reading.

Small and Large Water Phantoms Include
• 46 cm aluminum depth scale.

• Chamber support rod w/scribing, 1/2" (1.27 cm) diameter delrin.

• Acrylic holder for a Farmer Style Chamber.

• Drain valve assembly.

• Pipe plug.

• 5' (1.5 m) drain hose with hose connection.


Manual Drive Unit
Counter:  Mechanical
Accuracy:  0.1 mm
Travel:  30 cm

Water Phantom Tank
Inside Dimensions:  40 cm x 45 cm x 38 cm D
Gallons:  16.5
Weight:  16.5 lb (7.5 kg)
Weight When Full:  Approximately 132 lb (60 kg)


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