Course Outline

Digital Mammography: Hologic Dimensions 3D


The Hologic Dimensions 3D training course will provide engineers the necessary knowledge to maintain Dimensions 2D or 3D Tomo systems. This course is designed to give the service professional the insight to evaluate image quality problems, determine if the mammographic unit is the source of the image problem and take the appropriate steps to correct the deficiency.

Given today’s regulatory environment maintaining the system at peak performance is of the utmost importance.

At the completion of this course students will be able to perform all Dimensions system maintenance procedures including:

  • System installation
  • Calibration (including Tomo)
  • Gantry maintenance
  • AWS (Acquisition Workstation) maintenance
  • Imaging chain maintenance
  • Detector pixel mapping
  • Preventive maintenance
  • Troubleshooting


To attend this course, the service professional must have attended Phase I and possess fundamental knowledge and understanding of the principles of X-ray and basic electronics.


  • Identify the major components of the Dimensions system
  • Describe the functional characteristics of each sub-system of the Dimensions system
  • Describe the factors that affect digital mammographic image quality
  • Describe how those factors are optimized to produce the highest quality digital mammographic images
  • Complete all operator, administration, and application tasks
  • Fully install the Dimensions system and related components
  • Describe the function of the basic components of the Hologic Dimensions mammographic unit
  • Perform the necessary tests to reproduce the results of the physicist’s report to confirm corrective action
  • Perform all system calibrations and adjustments to maintain the highest quality images and compliance with MQSA requirements
  • Perform detector related maintenance and Pixel mapping procedures to maintain detector image quality over time
  • Demonstrate competence to be able to handle AWS maintenance, backup, restore, and calibrations
  • Perform complete Preventive Maintenance procedures as performed by the OEM
  • Evaluate circuit functions to facilitate troubleshooting

Tuition: $12995

Course Length: 1 Week

CEU's Awarded: 8 CEU’s


  • Oct 2-6, 2023
  • Jan 29- Feb 2, 2024
  • Jun 3-7, 2024
  • Sep 30-Oct 4, 2024
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Course Outline

Day 1
  • Course introduction
  • Dimensions system overview
  • Dimensions system
    • Components
    • Dimensions terms/acronyms
    • System documentation
    • Manual set overview
  • System logins
  • Mammographic regulatory overview
  • Dimensions quality control
  • Functional checks
  • Lab Activities
    • Major system component identification
    • System turn-on
    • System logins
    • System power-down
    • Image quality
      • Resolution
      • Contrast
    • Signal to noise
    • MTF
    • Flat field/Phantom IQ
    • QC Testing & Checks
Day 2
  • System power
    • AWS
    • Gantry
    • Brick
    • Detector
    • Turn-on circuits
  • System communications
  • Dimensions operations
  • AWS acquisition software
  • Operators console
  • User interface/application
    • Image acquisition
    • Image viewer
  • Lab Activities
    • Remove and replace covers and system panels
    • Component identification
      • AWS
      • Gantry
      • Detector
    • Component location
      • Schematic location
      • Physical location
      • Connector locations
      • Fuse location/identification
Day 3
  • System service
  • Required tools and test equipment
  • Device/output configuration
  • System calibration
    • Tube bias
    • Filament calibrations
    • X-Ray Field alignment
    • Light to X-Ray Field alignment
    • AEC calibration
  • Image and detector maintenance
  • Detector calibration
  • Gcal (Geometry Calibration)
  • C-Arm & Tomo Calibrations
  • Lab Activities
    • kV calibration
    • mA calibration
    • Tubehead Adjustments
    • C-Arm & Tomo Calibrations
    • AEC calibration
    • Detector flat field calibration
    • Pixel mapping
    • Recalibrate newly mapped detector
Day 4
  • Backups
    • AWS
    • User preferences
    • Gantry/tubehead calibration data
  • Restore system components from backup
  • Operating system installation procedure
  • AWS application installation procedure
  • Lab Activities
    • Backup AWS
    • Backup user preferences
    • Backup gantry/tubehead calibration data
    • Complete restore from backup
    • Clean OS install
    • Application install
    • System restore from previous backup
  • Preventive maintenance
  • Lab Activities
    • PM Procedures
    • Dimensions PM worksheet
  • Troubleshooting
    • Error codes
    • System diagnostics
  • Lab Activities
    • Troubleshooting using defective/bug boards
    • Using Service Tools & Diagnostics
      • SANDRA
      • CAN Bus tools & troubleshooting
Day 5
  • Troubleshooting (Cont’d)
    • Error codes
    • System diagnostics
  • Course review
  • Course evaluation
  • Final exam
  • To register for a course, fill out the information below or download our registration form.

    For information on travel expenses and hotel accommodations please see our full coverage package information.
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