CT Simulators


A CT simulators is a vital component in the radiation oncology facility. It enables the clinician to determine the exact location, size and shape of the tumor so that they may develop a sound treatment plan. Radiology Oncology Systems provides low to mid-cost pre-owned, refurbished CT simulators for those in search of treatment planning tools. We will fit your budget parameters, clinical objectives, room requirements and technology requirements.


Because CT simulation is typically performed primarily for treatment planning, utilization of this equipment is relatively low compared to more heavily-used linear accelerators. Therefore, purchasing a pre-owned CT simulator is a smart way to reduce costs without cutting value to your patients. Each CT simulator, from Radiology Oncology Systems can be purchased alongside a full range of services to allow for turnkey installation and operation:

  • Tailored refurbishment solutions
  • Installation packages
  • Warranty, service and maintenance
  • Clinical applications training
  • Patient positioning lasers
  • Flat carbon fiber table tops
  • Power conditioners and UPS Systems
  • Dedicated project planning and logistics support
  • Equipment removals and disposals
  • Room renovations


Radiology Oncology Systems is available to help you make the best possible CT simulator purchase decision. We offer options in standard bore and large bore configurations. Choosing the right equipment will depend on a variety of factors, ranging from your practice’s clinical objectives to your space limitations. We are happy to work with you to help you find a style that meets all your needs. Explore our inventory now to find a CT simulation machine for a great price in like-new condition.

 Multi-Slice CT Simulator  GE Lightspeed RT-4 Large bore multi-slice CT SCanner
CT Simulators
Large Bore
CT Simulators

Selecting which CT Simulator is right for your practice begins by answering a few questions.

Questions to consider before purchasing a CT Simulator  
User our comparison chart below to determine which type of CT Simulator is right for your practice.

CapabilitiesLarge Bore Single Slice CT SimulatorMulti-Slice CT SimulatorLarge Bore Multi-Slice CT Simulator
Suitable for
Radiation Therapy
Large FOV (60cm+)
Large Patient
Aperture (80cm+)
Rapid Image
Compatible with
Gating Technology
Image Quality Low High High
Retail Price Low Medium High

Discover the pros and cons of each  CT Simulator in the tabs below.


Large Bore Single Slice

Large Bore Single Slice CT Simulator

The first generation of large bore CT Simulators to enter the radiation therapy market was the Philips ACQSIM CT Simulator. This line of CT Simulators offered radiation therapy practices the ability to perform 3-D planning while allowing a larger aperture for patient positioning devices and a larger FOV (60cm) and a larger bore (approximately 80-90cm) allowing patient position devices such as breast boards.

ROS offers clinicians an affordable large bore CT Simulator solution using refurbished Philips ACQSIM CT Simulators.


Multi-Slice CT Simulator

Multi-Slice CT Simulators provide the advantages of Large Bore Multi-Slice CT Simulators for less money. The primary difference between traditional Multi-Slice CT Simulators versus Large Bore Multi-Slice Simulators is the field of view (50cm vs. 60cm).

Advantages of using multi-slice CT technology  

  • Excellent image quality
  • Rapid image acquisition
  • Compatibility with respiratory gating technology
Large Bore Multi-Slice

Large Bore Multi-Slice CT Simulator

Large bore multi-slice CT Simulators offer distinct advantages for use in a radiation therapy setting.

  • Provides a large field of view (60cm FOV)
  • A large aperture (approximately 80cm) allows for breast immobilization devices
  • Multi-slice detector technology in order to gain a more rapid image acquisition
  • Compatible with respiratory gating technology

The drawbacks for purchasing a used, large-bore multi-slice CT Simulator are related to availability in the marketplace and price relative to the other lower priced CT Simulator options

What do I get when I buy a CT Simulator refurbishment package from ROS?

The CT Simulators we sell go through our 41 point refurbishment process in order to ensure you with a CT Simulator that is both affordable and reliable. Each refurbishment begins with an inspection by our engineers to ensure we provide you the best possible used CT Simulator. Our meticulous refurbishment process ensures that you buy a quality CT Simulator in "like-new" condition.

CT Simulator refurbishment check list:

• Refinishing and painting of covers and treatment table • Test intercom and auto voice functionality
• Vacuum entire system • Take baseline scans check and document image quality
• Blow out entire system • Check error logs for any previous problem with system. Document any problems found
• Clean entire system • Check and adjust all system power supplies replace as required
• Clean and inspect all accessories • Verify and repair any previous system problems
• Check and tighten all connections in PDU • Reload system software
• Check all system cables/connectors replace as required • Verify operation of all mechanical motions
• Grease main bearing in Gantry • Check gantry balance
• Clean and inspect slip rings and brushes replace as required • Verify table incrementation
• Inspect motor brushes in axial motor replace as required • Perform mechanical characterization
• Inspect collimator filter replace as required • Interference test
• Clean and oil high voltage wells in X-ray tube and tanks • Calibrate generator
• Check input power jumpers and verify set to 480v • Check for proper operation of detector heater
• Check all Emergency stops for proper operation • Check all tube alignments adjust as required
• Check table tape switches for proper operation replace as required • Tube output check
• Check gantry display for proper operation • Perform complete system calibration
• Inspect all system fans for proper operation replace as required • Check and document image quality
• Check for proper operation of all console components • Inspect positioning lasers for proper operation adjust and replace as required
• Check monitors for proper operation and adjustments • Exercise system
• Check system archiving • Perform and document OEM form 4879X System performance checks
• Check system networking  

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