Authorised Indian Distributor
Saxsons Group
New Delhi, India · Since 1997
The fastest 4D verification system for IMRT, VMAT, SRS, Radixact and TomoTherapy. Dual orthogonal detector planes give you per-fraction, per-beam, per-control-point confidence before every treatment.
| Detector type | p-type silicon (p-Si) disc diode |
| Total detectors | 1,069 |
| Detector planes | Coronal and sagittal (dual orthogonal) |
| Detector dimensions | 1 mm diameter × 0.05 mm thick |
| Active volume | 0.04 mm³ |
| Resolution — central | 5 mm (6 × 6 cm² isocentric area) |
| Resolution — outer | 10 mm |
| Max field size | 20 × 38 cm² (merged); 20 × 20 cm² (single) |
| Phantom material | PMMA (optional Plastic Water DT) |
| Phantom diameter | 22 cm |
| Phantom length | 40 cm (total system 71 cm) |
| Total weight | 27 kg |
| Communication | Wi-Fi (wired Ethernet option available) |
| Power | Rechargeable Li-ion; >4 h per charge |
| Absolute calibration | Required; IC verification optional |
| TPS compatibility | Any TPS with DICOM RT (plan, dose, structures) |
| Modalities | Photon — with and without flattening filter (FFF) |
| Detector stability | <0.1%/kGy; typically 0.04%/kGy at 6 MV |
| Setup time | Seconds (trolley-mounted) |
Varian
TrueBeam, Halcyon, Edge, Clinac
Elekta
Versa HD, Infinity, Synergy
Accuray
Radixact, TomoTherapy HDA, CyberKnife
ViewRay
MRIdian Linac
Siemens
Artiste, Oncor
Brainlab
Vero (with DICOM RT)
Any TPS with DICOM RT (plan, dose, structures) export is supported — including Pinnacle, Eclipse, Monaco, RayStation, Tomotherapy Hi-Art.
Core verification software included. Optional modules extend to machine QA, anatomy dose mapping, and statistical trending.
Core 4D verification suite. Instant pass/fail, gamma index, DTA, profile, isodose, per-control-point analysis. Customisable reporting. 21 CFR Part 11 audit trail.
Daily machine QA: output constancy, flatness, symmetry, MLC position, couch rotation. One detector, two workflows.
Maps measured 4D dose onto patient CT anatomy. Delivers dose-volume histogram comparison for biological impact assessment.
Longitudinal QA trending across patients and machines. Identifies drift before it becomes a clinical issue. Network-compatible database.
6-DOF motion platform for moving-target verification — 4D SBRT and gating QA. Mounts directly under the phantom.
One system — the full scope of modern radiotherapy QA
Verify each IMRT and VMAT plan before first fraction. Complete gamma analysis and report in under 20 minutes.
High-resolution 5 mm central detector grid meets sub-millimetre SRS spatial requirements with small-field corrections.
Helical delivery QA — axial resolution expandable via merged measurement sets. Full rotational dose captured.
Compatible with ViewRay MRIdian workflows via DICOM RT import and standard calibration chain.
Delta4 Machine QA module turns the same phantom into a linac QA tool — output, flatness, MLC leaf bank tests.
Pair with Delta4 HexaMotion for 6-DOF motion, gated delivery verification and 4D SBRT dose reconstruction.
Competing systems measure in one plane. Delta4 Phantom+ captures the full 4D dose distribution simultaneously — coronal and sagittal — giving a complete volumetric picture without stitching or sequential acquisitions.
Add the Delta4 Machine QA software module and the same phantom handles daily output constancy, flatness, symmetry and MLC tests — reducing capital spend without switching equipment.
From trolley placement to signed-off PDF report in under 20 minutes. No cables, no warm-up, no manual lifting. The wireless Li-ion system is ready the moment you wheel it into the treatment room.
Delta4 Phantom+
Each card opens a focused post for a specific specialty — peer-reviewed evidence and clinical workflow, written for the persona you select.
For Medical Physicist
At what magnitude of MLC, gantry, collimator or MU error does the Delta4 gamma passing rate cross the 95 % action threshold? Per Udee 2024, J Med Phys.
Read this Medical PhysicistIon chambers under-respond and many diodes drift at high dose-per-pulse. What changes when the detector integrates one pulse at a time at 50 nGy resolution?
Read this Medical PhysicistDepartments routinely run separate equipment for patient-specific QA and routine machine QA. What changes when the same 1,069-detector array runs both workflows under one software ecosystem?
Read thisContact Saxsons Group for pricing, demo scheduling, AERB import documentation and installation support.