Saxsons Group
the manufacturer QA BeamChecker Plus Daily Linac QA Device
8 chambers
vented ion chambers
60Co–25 MV
photon range
6–25 MeV
electron range
2400 MU/min
max dose rate
~10 s
next-beam ready
Wireless
standalone

Authorised Indian Distributor

Saxsons Group

New Delhi, India · Since 1997

SX
Radiotherapy RT-009 AERB Importable TG-142 Daily QA

QA BeamChecker™ Plus Daily Linac QA Device

Eight vented ion chambers in a single setup — output, flatness, symmetry and energy constancy for every photon and electron energy on the machine. Wireless operation, automatic energy detection, ready for the next beam in ten seconds.

Key Features

  • Eight fully guarded vented ionization chambers — 1 centre, 4 quadrant (7.5 cm from centre), 3 energy-ID
  • Photon energies from 60Co to 25 MV in a single setup
  • Electron energies 6 MeV to 25 MeV in the same setup as photons
  • Automatic energy detection — deliver beams in any order, no manual selection
  • Dose rates up to 2400 MU/min — FFF-beam compatible
View all features

All Features

  • Eight fully guarded vented ionization chambers — 1 centre, 4 quadrant (7.5 cm from centre), 3 energy-ID
  • Photon energies from 60Co to 25 MV in a single setup
  • Electron energies 6 MeV to 25 MeV in the same setup as photons
  • Automatic energy detection — deliver beams in any order, no manual selection
  • Dose rates up to 2400 MU/min — FFF-beam compatible
  • Wireless operation — no cables to the linac console
  • Ready for the next measurement within 10 seconds
  • Supports IMAT, VMAT, TomoTherapy and dynamic-wedge delivery verification
  • Compatible with Varian, Elekta, Accuray and Siemens linacs
  • PC workflow on Windows 10 Pro (64-bit) — or operate standalone
  • Daily output, flatness and symmetry constancy across every modality
  • Designed for the daily portion of the AAPM TG-142 / TG-198 QA programme

Technical Specifications

Detector type 8 vented, fully guarded ionization chambers
Chamber volume 0.6 cm³ per chamber
Chamber geometry Parallel-plate, 4.0 mm separation, 1.39 cm collection electrode
Chamber layout 1 centre + 4 quadrant at 7.5 cm + 3 energy-ID chambers
Photon range 60Co to 25 MV (all clinical energies including FFF)
Electron range 6 MeV to 25 MeV
Dose-rate range Up to 2400 MU/min (FFF compatible)
Beam-energy detection Automatic — no manual selection needed between beams
Delivery types Static, IMAT, VMAT, TomoTherapy, dynamic wedge
Communication Wireless — operates independently of QA management software
PC requirements Windows 10 Pro (64-bit) when used in PC mode
Compatible linacs Varian, Elekta, Accuray, Siemens
Standards alignment AAPM TG-142 daily QA (Klein 2009) / TG-198 (Hanley 2021)

Applications

The daily morning check — every modality, one setup

Daily output constancy

Verify linac output every morning across every photon and electron energy. Automatic energy detection means therapists deliver beams in any sequence — no device reset between energies.

Flatness & symmetry

Four quadrant chambers at 7.5 cm from the centre capture radial and transverse profile constancy on every beam.

VMAT / rotational delivery

Dose rates to 2400 MU/min and rotational delivery support let the device serve daily VMAT and IMAT machine checks alongside static beams.

FFF beam daily checks

Built for the high dose-per-pulse seen on TrueBeam HDRS and Versa HD FFF deliveries. No saturation correction needed at the dose rates documented in the brochure.

Therapist-led daily QA

Wireless, standalone operation lets RTTs complete the morning constancy check independently — physicist review happens later, on the saved data.

TG-142 / TG-198 daily

Covers the output / profile-constancy portion of the daily-QA test set in the AAPM Task Group reports. Mechanical and imaging daily tests run on separate tools.

Why QA BeamChecker Plus?

8 chambers
Centre + quadrants + energy-ID

A single centre chamber gives output, four quadrant chambers at 7.5 cm give radial and transverse profile constancy, and three energy-ID chambers let the device recognise the delivered beam automatically. One setup, every photon and electron energy.

Wireless
No cables, no laptop

The device records, calculates and reports on its own — no console cable, no laptop in the bunker. Standalone for the morning check; the PC software is there when you want trending or batch export.

~10 s
Between measurements

Automatic energy detection plus a 10-second readiness window means the full daily-QA list across photons and electrons completes faster than energy-by-energy chamber swaps.

Catalogs & Resources

Manufacturer datasheets. AAPM task-group reports, the 10-year Santa Chiara user-experience case study and the Keister clinical-experience talk are on the Knowledge Hub — link above.

Product Demonstrations

Manufacturer product overviews. The user-perspective clinical talk (Justin Keister, Advocate Aurora Health) lives on the Knowledge Hub.

Available through Saxsons Group

Bring daily QA down to a single setup

Contact Saxsons Group for pricing, demo arrangement, AERB import documentation and installation support for the QA BeamChecker Plus.