1 IQM Detector with battery power supply, 1 IQM Detector mount, 1 IQM Transceiver with power supply, 1 Serial cable, 1 Network cable, 1 IQM Workstation (with wall-mount), 1 IQM Virtual Server (Server hardware optional), 1 IQM Service Dummy


1 IQM Database, 1 IQM CALC license, 1 IQM MON license, license-free IQM Review application, site specific interfaces


Type of Detector

Air-vented large area ionization chamber with gradient response

Number of Detectors

1 (single) ion chamber

Ion chamber volume


Active Size

26.5cm x 26.5cm

Minimal Field Size: 


Maximum Field Size

40cm x 40cm

Detector Resolution

Continuous spatial resolution (similar to radio-chromic film)

Active Detection Area

100% (one single detector with continuous spatial resolution – no discrete detector spacing)

High Voltage


Polling repetition rate

200 ms

Dose Range

0.1MU x cm2 to unlimited

Dose rate dependency

< 0.2% between 20 MU / min and 2400 MU / min

Energy range

Photon energies from 1MV to unlimited (incl. FFF)

Dynamic range

Between 50 counts / minute and 5.000.000 counts / minute

Signal reproducibility

> 99.95%

Signal linearity (dose output)

100% proportional

Air Kerma correction

Built-in Thermometer and Barometer

Inclinometer (built-in)

  • Inclinometer resolution: 0.1°
  • Gantry angle resolution: 1°
  • Collimator angle resolution: 1°


4 Lithium-Ion batteries (medical device certified)

Battery life

>24 hours

Battery Management System

Monitors and displays current battery status

Battery recharge time

Approx. 25min (20%), approx. 5 hours (100%)

Data connection


Detector enclosure material

Aluminum with Carbon Fiber cover

LED Indicators

5 on Front Panel (Power On/Off, Electrometer, Inclinometer, Bluetooth, Battery)


100% Made in Germany


45cm x 35cm x 3.5cm (17.7” x 13.8” x 1.37”)

Weight (incl. battery)

4.3kg (9.48lb)

Beam Attenuation

Beam Attenuation Type

Homogeneous, energy dependent
6MV – approx. 5.5%
18MV – approx. 4.5%

Effect on surface dose

3% to 5% increase of local surface dose (at SSD 90cm)

Effect on beam quality


Effect on beam spectrum


Integration of beam attenuation in TPS

Tray Factor
Modified Beam Model

Supplied IQM Service Dummy

Same beam attenuation as IQM detector during service or repair


Detector signal data transfer

Via Bluetooth to IQM Transceiver in the treatment room
(including country-specific power supply)

Via Serial Cable between treatment room and control room

Serial cable

23m (optional 15m or 30m)

Between treatment room and control room

IQM Transceiver

Bluetooth transceiver installed in treatment room

Network cable



IQM Database

SQL database

IQM CALC (Calculator)

Fully automated reference calculation based on imported DicomRT plan datasets


  • Automated data import
  • Automated patient creation
  • Automated reference calculation
  • Automated matched energy handling
  • Automated “alias” handling
  • Automated e-mail reporting
  • Automated error reporting
  • Automated activity logging

IQM MON (Monitor)

Real-time comparison of the calculated and measured signal at every control point


  • Automated patient synchronization
  • Automated patient data loading
  • Automated tolerance level application
  • Automated data acquisition
  • Automated data processing
  • Automated data comparison
  • Automated treatment verification
  • Automated error detection
  • Automated report generation

IQM Rev (Review)

Offline review software

Data output format

Portable document format (.PDF), Microsoft Excel (.XLSX) and text format (.CSV)



Intel® 6th generation Core™ i5 Quad Core


23.8” WLED, Full HD 1920x 1080 resolution with anti-glare coating; projected capacitive touch screen


Integrated Intel® HD Graphics 530 (6th generation Core i5/i7 CPUs), Optional 2GB AMD Radeon™ R7 A370, 2GB


8GB (2x4GB) 1600MHz DDR3L Non-ECC dual-channel 2133 MHz DDR4 SDRAM, supports up to 16GB


Integrated Intel® I219-LM Ethernet LAN 10/100/1000; supports optional wireless M.2 802.11ac + Bluetooth 4.1

I/O Ports

8 External USB: 6 x 3.0 2 side/4 rear (1 side with Powershare) and 2 x 2.0 2 rear, HDMI 1.4 In/Out, DisplayPort 1.2, RJ-45, 1 Universal Headset (Side), Line-out 1 Rear

Removable Media

Supports optional optical disc drive and standard media card reader

Hard Drives

500GB 5400RPM SATA Hard Drive


2.0MP FHD webcam with Privacy Cover


Dell(TM) MS111 USB Optical Mouse


Dell KB212-B QuietKey USB Keyboard Blac

Operating System

Microsoft® Windows 10 Pro 64-bit

Dimensions (H x W x D)

39.290 x 57.524 x 6.269cm

15.468 x 22.647 x 2.468″


8.150 kg

17.968 lbs

Wall mount

Ergotron LX HD

Virtual Server

Server Virtualization supported


Number of Virtual Machines required

2 (1x IQM DB, 1x IQM Services)

Supported VM types

Hyper-V and VMWare

Minimum Hardware Specifications

See IQM Server specifications (below)

Server (optional)


Intel Xeon E3-1220v2 3.10 GHz, 8M Cache, Turbo, Quad Core/4T (69W)

Operating System

Microsoft® Windows Server 2012


8GB Memory (1x8GB), 1600Mhz, Dual Ranked, Low Volt UDIMM


Add-in H200 (SAS/SATA Controller), 2 Hard Drives – RAID 1

Hard Drives

500GB 7.2K RPM SATA 3Gbps 3.5in Cabled Hard Drive


Dell PowerEdge T110 II Chassis with Cabled 4×3.5 Hard Drive

Additional information

Multi Treatment Room Support

Yes (optional)

Multi-Linac energy matching support

Yes (supports Linac group configuration)

Data Acquisition

During patient treatment for Fraction QA or Plan QA
In absence of patient for Plan QA or Machine QA

Type of Fraction QA

Intra-fractional verification in real-time during patient treatment

Verification frequency

Every beam segment individually (per control point)


Life cycle

2 x 6 years (with scheduled exchange batteries every 2 years and of detector electronics and IQM workstation after 6 years)


IQM is not available for sale in all countries