OCTAVIUS Detector 1500

Key Features

Detector Array with 1405 ionization chambers
Gold standard ionization chamber technology avoids detector ageing effects
Patient plan verification and machine-specific QA in one system
Suitable for use with OCTAVIUS 4D system – the modular phantom for IMRT, VMAT and SRS/SBRT

Suitable for a wide energy range including FFF beams
Detector spacing: 7.1mm center-to-center
Large field size: 27x27 cm²
Reproducible, quick and easy positioning with the Couchfix Positioning Tool

Gold Standard ionization chamber technology

Compared to diode detectors or solid state detectors, ionization chambers guarantee the following benefits:
A long lifetime of the detector
No recalibration necessary due to its stable and reliable signal even with accumulated dose
Water-equivalent measurements
Measurements with a well-established system
An excellent field coverage due to its finite ionization chamber size

Verification of very long radiation fields with VeriSoft

The OCTAVIUS Detector 1500 is particularly suitable for complex treatment plans with very long radiation fields.

With its large field size of 27 x 27 cm² it will cover the most treatment plans. If a larger field size is necessary, increase your verification length with the VeriSoft “Compose” feature. Compose two measurements and thus increase the length of your OCTAVIUS Detector 1500 to 48 cm.

True TPS independent QA with full coverage of clinically relevant regions

The measurement principle of the OCTAVIUS Detector together with the OCTAVIUS 4D is the only TPS indepent 3D dose verification system that allows dose to be measured throughout the entire phantom volume and not only at isolated points. This ensures full coverage of clinically relevant regions such as target volumes and organs at risks and the detection of clinical relevant errors.

Technical Specifications

Detector type:	Plane-parallel vented ionization chambers
Number of detectors:	1405
Detector size:	4.4 mm x 4.4 mm x 3 mm (0.06 cm³)
Detector spacing:	7.1 mm center-to-center
Max. field size:	27 x 27 cm²
Reproducibility:	≤± 0.5%
Dead time:	zero
Repetition rate:	100 ms
Measured quantities:	absorbed dose to water (Gy), absorbed dose rate to water (Gy/min)
Resolution:	Dose: 0.1 mGy, Dose rate: 0.1 mGy/min
Measurement range:	0.25 ... 800 Gy/min
Reference point:	7.5 mm below the surface of the array
Housing material:	PS, GRP (frame)
Dimensions:	467mm x 300mm x 22mm (H x W x D)
Weight:	6 kg
Power supply:	(100 ... 240) VAC; (50 ... 60) Hz
PC connection:	Ethernet

Related Downloads

Note

OCTAVIUS 4D Special applications ( )

Note

OCTAVIUS 4D Verification of long radiation fields ( )

Catalog

Radiation Medicine Catalog ( )

Related Literature

Dosimetric characteristics of the novel 2D ionization chamber array OCTAVIUS Detector 1500 (T. S. Stelljes et al) Medical Physics 42, 1528 (2015)

Free access

The Octavius 1500 2D ion chamber array and its associated phantoms: Dosimetric characterization of a new prototype (A. Van Esch et al) Medical Physics 41, 091708 (2014)

The "collimator monitoring fill factor" of a two-dimensional detector array, a measure of its ability to detect collimation errors (T.S. Stelljes, H.K. Looe, D. Harder, B. Poppe) Med. Phys. (2017)

Related Products

OCTAVIUS 4D

VeriSoft

COUCHFIX Positioning Tool