The Industry Standard

  • Full-field real-time measurements
  • Quick and easy setup
  • Measure at isocenter for any gantry angle

The Industry Standard

Every clinic should have a PROFILER. The extended PROFILER family delivers fast and powerful beam QA at thousands of clinics, as well as Linac manufacturing facilities and Linac service groups. PROFILER provides a wealth of information about beam performance in real-time, and takes only minutes to setup. It’s that simple, and that powerful.

Real-Time Machine QA,Commissioning and Trouble Shooting

The PROFILER family of 2D arrays share a common mission: real-time precision measurements for a wide variety of routine QA, commissioning, and troubleshooting applications. Each PROFILER model is designed for maximum flexibility within a specific application, although each is useful across many applications.

Routine QA

Use instead of a water tank for high resolution routine QA of many parameters


Real time measurements of modulated fields such as electronic wedges; export to planning system

Trouble Shooting

Highly flexible real-time measurements allows for trouble shooting of beam and linac anomalies, and verification testing after Linac service and parts replacement


Features & Benefits

  • Full-field real-time measurements
    • Flatness, symmetry, field size, beam center, penumbra width, light/radiation field
    • Identify startup/time dependent anomalies
    • Beam constancy, steering, diagnostics, collimator and rotational sag QA
    • Electron energy verification
    • Photon energy verification – IC PROFILER
  • Quick and easy setup
    • Portable and lightweight
    • Single power/data cable
    • No pre-irradiation required
    • No warm-up required
  • Measure at isocenter for any gantry angle
    • Birdcage (SRS PROFILER) and GMF (IC PROFILER)
  • Low signal to noise (0.15%)
  • User calibrated every 1-2 years with 15 minute patented calibration method
    • No need to send back to manufacturer
  • Used by Varian, Elekta, Accuray® and ViewRay®
  • Supports FFF beams
  • MRI compatibility – IC PROFILER-MR


  • Multiple real time parameter calculations
  • Profile comparison , subtraction, overlay
  • All relevant international and OEM calculation protocols
  • Beam tuning and data plotting interface
  • Real-time movie mode measurement and playback
  • Import water tank data and compare to PROFILER files
  • Developed in cooperation with market leading Linac manufacturers
  • Report generation with output to PDF®
  • Analysis parameters
    • Flatness
    • Symmetry
    • Field size
    • Light-radiation field coincidence
    • Penumbra
    • Dose rate
    • Beam center
    • Output
    • Beam stabilization time (movie mode)
    • Electron energy verification (with accessory wedge)
    • Photon wedge angle calculation
    • Pulse counting
    • Dose/pulse
    • Pulse/second


A 32 x 32 cm array using uniquely shaped ionization chambers on X, Y, and Diagonal axes for closest dosimetric match to water tanks. IC PROFILER is chosen as the industry standard by linac vendors for manufacturing and service worldwide.


Quantification of Beam Steering with an Ionization Chamber Array

S. Gao, et al, Journal of Applied Clinical Medical Physics, 2018

"The gold standard for beam steering has traditionally been a 3D water scanning system. However, a 2D detector array is far easier to setup and the real-time feedback greatly speeds up the steering process. Our findings show that with proper calibration and procedures, beams steered with a 2D detector array can achieve the same quality in symmetry as beams steered with a 3D water scanner."

S6  Icprofilermonitor
S6  Beam Steering Screen

Beam Steering

Easy viewing of real-time beam changes of selected parameters


  • Unique curved ion chambers maximize signal and minimizes volume averaging
  • Full field measurements of X, Y, Diagonals
    • 45 cm x 45 cm diagonals
    • 40 cm x 40 cm X and Y field measurement at 75 cm SDD
  • GMF™ holds IC PROFILER at isocenter for rotational measurements at any gantry angle
    • Add up to 1.5 cm (Varian) or 3.0 cm (Elekta) buildup


Electron Energy Quad Wedge Plate

  • Used for precise electron energy measurements independent of wedge positioning
  • Aluminum-based design
  • Suitable for analysis of beam energies, ranging from 4 MeV to 22 MeV

Photon Energy Quad Wedge Plate

  • Used for precise photon energy measurements independent of wedge positioning
  • Copper-based design
  • Suitable for analysis of beam energies, ranging from 6 MV to 18 MV
S6  Specs


Detector Type: Ion Chambers
Detector Quantity: 251
Detector Width: (mm) 2.9
Field Size: (cm) 32 x 32
Detector Axes: X, Y, diagonals
Detector Spacing: (mm) 5
Quad Wedge

“Energy verification using IC Profiler with Quad Wedge accessories can yield results with accuracy comparable to water tank measurements.”

Free Technical Review

Beam Quality Verification Using IC Profiler with Quad Wedge Accessories
Co-authored by Varian and Sun Nuclear Corporation

Learn how this novel solution from Sun Nuclear eases setup and saves time and resources, while reducing potential errors and uncertainties.

Get your free download now.

SunCHECK™ Integration

The SunCHECK Platform has direct device integration to IC PROFILER to enable automated beam measurement, eliminating the need for additional software and transfer of data.

Smarter Monthly QA

Directly connect your IC PROFILER and take advantage of efficient TG-142 templates for easy Monthly (and Annual) QA. Simply deliver the test beam, then accept or reject results on your terms and timeframe.

Using the IC PROFILER and Quad Wedges for monthly constancy and beam quality checks takes only 15 minutes for 5 beams vs. 60 minutes without.*

*SunCHECK Machine internal testing

Icprofiler Mr

The IC PROFILER-MR supports real-time beam analysis in the presence of magnetic fields. IC-PROFILER-MR is:

  • Used by Elekta and ViewRay® Development and Engineering teams
  • Compatible with cobalt- and linac-based treatment delivery systems
  • Compatible with ViewRay-designed couch mounted stand
Halcyon™ System QA

The Varian Halcyon System comes with the beam data and beam model pre-configured in Eclipse, allowing installation in 14 days or less. Sun Nuclear is pleased to support this with our Halcyon Acceptance and Verification package, which includes the IC PROFILER for beam analysis.

3D SCANNER™ is available for Halcyon Beam Model Verification. Learn more>


A 12 x 14 cm array using SunPoint Diode Detectors for small-field measurements.

S7  Srsprofilermonitor


  • SunPoint® Diode Detector technology is 800 times smaller than micro ionization chambers, and 100 times more signal than micro ionization chambers. The small size is ideal for accurate penumbra characterization and steep gradients.
  • Full field measurements of X, Y, Diagonals
  • Attaches to the Accuray® CyberKnife® birdcage
    • Measure at any node position
  • On Accuray Recommended Equipment List for CyberKnife


Detector Type: SunPoint Diode Detectors
Detector Quantity: 125
Detector Width: (mm) 0.8
Largest Field Size: (cm) 14.4 cm diameter
Detector Axes: X , Y , diagonals
Detector Spacing: (mm) 4
S7  Specs

Looking for information on PROFILER 2? Contact Support for details.