ArcMap
3D IMRT/VMAT Dose Verification Detector Array
ArcMap is a dual-ring detector array with 1,764 ionization chambers spread across a 21 × 21 cm field. Paired with RayMap, it imports DICOM RT Plan/RT Dose and compares measured dose to the TPS plan to verify IMRT/VMAT delivery. Gigabit Ethernet links the array to PC, and the front LCD shows gantry/collimator angle and IP status.
Compatible with
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Machine:
- LINAC
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Treatment techniques:
- IMRT
- VMAT
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Beams:
- Photon beams (FF & FFF selectable)
- Electron beams
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TPS formats:
- DICOM RT Plan / RT Dose (DICOM 3.0)
- Eclipse
- Monaco
- Pinnacle
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Software / Connectivity:
- RayMap
- Ethernet connection to PC
Video
Key Features
Dual-Ring, High Density Array
1764 Ionization chambers are arranged in a staggered dual-layer design, supporting full 360°irradiation with excellent angular response consistency.
Interchangeble Insert
Hollow interior accepts Solid-Water & Ion-Chamber inserts to support phantom 3D dose checks and point-dose measurement.
Two Verification Workflows in RayMap
RayMap supports Phantom-based 3D dose verification, displaying the 3D dose distribution within the phantom;
and CT-based 3D dose verification, displaying the 3D dose distribution reconstructed onto the patient’s CT image.
Technical Parameters
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Detector TypeIonization Chamber
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Detector Quantity1764
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Detector Volume0.094cc
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Nominal Sensitivity3.6nc/Gy ± 0.2nc/Gy
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Detector Volume (R×H)2.5mm×4.8mm
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Repeatability≤±0.5%
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Non-linearity≤±0.5%
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Field Size21cm×21cm
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Dimensions(L×W×H)373.4mm×309mm×280mm
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Weight18.5kg
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Insert Cavity Radius6.7cm
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Inner Ring Radius9.5cm
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Outer Ring Radius10.5cm
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MaterialPMMA
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