3D SCANNERTM. 3D Scanning Comes Full Circle. s u n. Your Most Valuable QA and Dosimetry Tools A / B / C. The 3D SCANNER Advantage

Transcription

1 3D SCANNERTM 3D Scanning Comes Full Circle Relative 3D Dosimetry offering the easiest setup, most objectivity, and best consistency available The 3D SCANNER Advantage Advanced Design Ring and diameter drive mechanism positions detector in any relevant 3D location 63cm scanning range eliminates the need for tank shifts Better Data Eliminates setup subjectivity which affects data quality Detector maintains consistent orientation for in-plane, cross-plane, and diagonal scans Narrow side of scanning detector remains parallel to beam edge, reducing dose volume averaging Simple to Setup and Easy to Use Automated tank leveling, water surface, and beam center alignment - Less than 30 minute setup Cross-Plane Diagonal In-Plane A B C Consistent scanning direction = Better results Efficient Maintain consistent detector orientation without moving tank Setup tank once for all required scans Software New multi-product scanning/profile software application Customizable user interface and measurement scripts Database for effective data management A / B / C A For all Scans Square Tank 3D SCANNER Patent pending Your Most Valuable QA and Dosimetry Tools s u n

2 Hardware Electrometer Dual measurement channels Ring Drive Precise positioning of the scanning arm to any orientation in the profile plane Diameter Drive Consistent detector orientation through the penumbra regardless of scan axis 630mm scanning range Tension belt design Water Tank Cylindrical PMMA acrylic design resists deformation Detector Holders Field and reference holders for both diode and ion chambers are included Vertical Drive Precise positioning of the scanning arm to the desired depth in the water tank Lead screw design Motor Controller Integrated with electrometer Mount directly to tank Lift Table, Leveling Platform and Reservoir Position the 3D SCANNER to the desired SSD Automatic adjustment of ring axis to CAX Automatic leveling system Designed to fit over all linac floating floor panels Optional water reservoir available

3 Software 3D SCANNER operates using SNC Dosimetry scanning software. SNC Dosimetry is a modern software application designed to offer both familiar concepts from existing water tank conventions, as well as new tools that were not previously available with a 3D water tank system. Intuitive Software Saves Time. Queues As with other 3D water tanks, 3D SCANNER offers queues to organize and execute groups of scans. Queue results and analyses are displayed instantly for saving to a project. Database All data are indexed in a searchable database. Scanned data can be shared among users as needed. Layers Pre-processed data are preserved and can be recalled as needed. Analysis Selected scans present onscreen analysis.

4 s u n Processing Layers Each processing function is treated as a unique layer of the scan data. The processing layers do not overwrite the original scan data, so users may revert to earlier unprocessed data at any time. Projects Data is organized on a top level by a scan parameter called Project. Project allows organization of scan data based on specific work tasks. Projects will cover top level tasks such as annual QA and commissioning, as well as any other desired dataset. Graphs Scanned data are displayed graphically. 3D SCANNER

5 Auto Setup Less subjective Saves time auto level 3D SCANNER compares water surface to the scanning mechanism at several points to make leveling adjustments. 3D SCANNER then calibrates the position of the detector relative to the water surface. 1 Auto level 3D SCANNER measures water surface relative to the scanner at three points and automatically adjusts the level of the scanner using two electric motors. 2 Auto center 3D SCANNER measures a 10x10cm beam to determine the center of the beam relative to the center of 3D SCANNER. Two electric motors then align the center of the 3D SCANNER with the beam center. 3 Angle offset 3D SCANNER uses a series of beam measurements to automatically establish sagittal and coronal home positions for the unique ring drive mechanism. auto center 1 10 x 10cm 2 Two measurements determine Y (1) and X (2) shifts to center 3D SCANNER on Beam Center. Shifts are applied automatically. Setup complete. X Required leveling adjustments are applied automatically. Y

6 Features and Specifications s u n Scanning: Vertical (cm): 40.0 TPR/TMR Measurement: Drain rate (cm/min): ~ 20.0 Diameter (cm): 63 with offset holder 50 without offset holder Ring (degrees): 330 Motors: Encoded stepper/servo Scanning modes: Continuous and step Scanning speed range (mm/sec): Variable up to 8 Scanning accuracy (mm): 0.1 Electrometer: Warm up time (min): < 1.0 Charge: 2pC - 10mC Rate: 2pA - 50nA Leakage (pa): < 0.01 Time constant (ms): Voltage (V): Adjustable, -400 to +400 Water Tank: Thickness wall / bottom (mm): 13 / 19 Height (mm): 673 Width (mm): 875 Diameter inner (mm): 676 Non-linearity: ± 0.1% Repeatability: +/- 0.05% A/D Converter: Linac pulse count: 16 bit Included, with threshold detection Water capacity (L): 166 Weight empty / full (kg): 44 / 210 Software: Tank centering: Automatic Lift Table and Leveling Platform: Vertical travel (cm): 40 Wheelbase (cm): 137 Leveling: Surface detection: RTP export: Automatic Automatic Included X / Y Tank adjustment (mm): ± 30 Vertical stability (mm): 1.0 (tank full at max height) Reservoir: Max fill / empty speed (min): 6 / 3 We are using the 3D SCANNER for some months now and are very pleased with it. The auto setup feature and the one-cable-connect allows quick and easy deployment, creating a very low threshold to its use. As a result, we are considering to increase the frequency of our routine watertank measurements, which we lowered with our previous system. The software provides a very clear user interface, reflecting the workflow of the measurement and post processing tasks. The ability to search through the database of all recorded scans is a powerful tool. The fact that post processing operations are applied as consecutive layers, with the ability to rollback to any previous one, is a key quality feature in the data management of the commissioning process we are currently undertaking. - Karen Feyen, Ph.D. Radiotherapy Department AZ St-Maarten, Duffel - Belgium All data used is best available at time of publication. Data is subject to change without notice. All Content 2011, Sun Nuclear Corporation. All Rights Reserved. 1230D