Title
Phantoms

 

Measuring Phantom    
Measuring Stand  
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.
 
Features: 
  • Simulates ideally the absorption and scattered radiation from a patient body
  • Can be used at bucky units, wallstands and undercouch units
 
 

CTDI Set for CT Dosimetry    
CTDI Set  
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.
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.

Features:
  • Makes CTDI *) and CTDIW **) determination possible 
    according to IEC 61223-2-6
  • Body phantom, 32 cm Ø and head phantom, 16 cm Ø, both acrylic cylinders of 15 cm height
  • CT ion chamber, sensitive length 10 cm
    *)  Computed Tomography Dosimetry Index
    **) Weighted CTDI
ESTRO Mini-Phantom   T40023.1.010
ESTRO Mini-Phantom  
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
Calibration Phantom  
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.
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).
Features:
  • Designed for calibration measurements in the 70 kV to 50 MV photon range and 1 MeV to 50 MeV electron range
  • Also available in high density polystyrene, RW3 (Goettingen Water 3), and RW1 (Goettingen Water 1)
 

RW3 Phantom T29672
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.
Features:
  • Approximately water equivalent solid phantom for dosimetry of high energy photons and electrons
  • Plate sizes of 30x30cm with thicknesses of 1mm, 2mm, 5mm and 10mm
  • All PTW chambers and also FeS ampoules can be inserted
 

Solid PMMA Phantom   T2966
Solid PMMA Phantom  
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
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.
Features:
  • Specifically designed to meet all of the requirements specified in ICRU Report 23
  • Positioning of two ion chambers tip-to-tip and simultaneous irradiation of both chambers enabled
  • Adapters for a variety of chambers available