Measuring Phantom |
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The Measuring Phantom is a patient phantom for transmission dose
measurement 25 cm behind a 25 mm Al absorber. It simulates the absorption
and scattered radiation from a patient body ideally and can be used at
bucky units, wallstands and undercouch units.
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Features:
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| CTDI Set for CT Dosimetry | ||
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The CTDI Set enables CTDI *) and CTDIW **) determination according to IEC
61223-2-6.The CT probe can be inserted for measurements into one of five
holes of the head or body phantom, which represent the body part to be CT
scanned. Holes not used are filled by acrylic dummy plugs, and a support
keeps the phantom in its position on the CT couch. Etched crosshairs on
the phantoms allow exact alignment.
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The CT probe is connected to the display units NOMEX, UNIDOS, UNIDOS E or
DIADOS. The measuring quantity is dose length product in Gy·m.
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Features:
*) Computed Tomography Dosimetry
Index
**) Weighted CTDI
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| ESTRO Mini-Phantom | T40023.1.010 | |
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The ESTRO Mini-Phantom
is a cylindrical PMMA measuring phantom acc. to ESTRO Booklet 3/1997. It
is used for 'in air' measurements if required by treatment planning
systems or the measurement of volume scatter ratios. The phantom (external
dimensions: 40 mm diameter by 240 mm in height) accommodates a Farmer type
ion chamber parallel to the phantom axis, at a depth of 100 mm.
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| Calibration Phantom | T2967 | |
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Phantom type 2967 is designed for
calibration measurements in the 70 kV to 50 MV photon range and 1 MeV to
50 MeV electron range. The T2967 contains 33 PMMA plates 30 x 30 cm of
various thickness (1- 1 mm thick, 2 - 2 mm thick, 1- 5 mm thick, and 29-
10 mm thick), a chamber plate for the insertion of an ion chamber without
air gaps and a storage case.
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The tolerance of the plates up to 2
mm thick is ± 0.2 mm, and ± 10% for plates greater than 2 mm thick. Plate
sizes of 40 x 40 cm are available. This phantom is also available in high
density polystyrene, RW3 (Goettingen Water 3), and RW1 (Goettingen Water
1).
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Features:
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| RW3 Phantom T29672 |
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RW3 consists of white polystyrene
and has been developed as a phantom for dosimetry of high energy photons
and electrons. Plate sizes of 30x30cm are available with thicknesses of
1mm, 2mm, 5mm and 10mm. All PTW chambers and also FeS ampoules can be
inserted.
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Features:
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| Solid PMMA Phantom | T2966 | |
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Clinical inter-calibration
measurements for a wide variety of thimble chambers can be performed
easily using our T2966 solid phantom. Specifically designed to meet all of
the requirements specified in ICRU Report 23, this phantom enables you to
position two ion chambers tip-to-tip and irradiate both chambers
simultaneously. This phantom consists of two solid PMMA blocks, 200 x 200
x 120 mm
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and 200 x 200 x 30 mm, a solid
chamber adapter for single chamber measurements and a small metal plate
for tripod mounting. The 120 mm block has concentric cross-wires on both
sides for precise alignment. The chamber adapters are designed to be
inserted into the phantom tip-to-tip without resulting air gaps. With the
help of the additional block measuring depths of 50, 70 and 100 mm are
possible. Adapters for a variety of chambers are available.
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Features:
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Direct Scientific tel (888) 368 9118 or (310) 589 0601 fax (310) 919-2981, Email |
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