説明
The ARC-200 Beam Viewer combines high-energy radiation detection with precision two-dimensional metrology to form a completely electronic alternative to film-based measurements. The ARC-200 captures and measures the beam profile and integrated dose depth of radiation beams with unmatched speed and accuracy.
Single beams and single axis proton spot scans may be directed at the scintillator block from any gantry orientation for capture and measurement. Automation scripts can be used to capture changes in the beam shape, intensity, location, and penetration depth at camera speeds up to 400 frames per second.
Logos Systems Camera Phantoms calibrate proton and radiosurgery systems or industrial radiation sources that must deliver precise amounts of radiation to targeted regions in 3D space. The correct operation of pencil beam scanning or high-density collimators used in these systems can be quickly verified.
Beam position and width measurements are accurate to 0.2 mm and beam dose depth measurements can be accurate up to 0.5 mm. Captured images can be exported to ImageJ or other image analysis software.
All operations are controlled by a laptop or desktop PC supplied with the camera phantom. The ARC-200 comes with a 30 meter (100 feet) USB3 power-over-fiber extender cable so that the system PC and operator can be located safely away from the radiation source. The digital camera phantom weighs approximately 7.0 kilograms (15.5 pounds) and is stored in the Pelican case provided with the system.
特徴
- Real-time Proton and X-ray beam profile and position capture
- 190 mm diameter × 55 mm deep cylindrical detector with near water equivalence
- 360-degree Gantry Rotation capable, no repositioning
- Effective Resolution 0.2 mm at 8 or 12-bits per pixel
- Flash-ready 400 fps captures
- Flexible fiducial and build-up options
- BeamWorks StrataソフトウェアはGUIまたはスクリプト操作に対応
- 個別または統合フレームキャプチャモード
- Advanced Bragg peak viewing and measurement
オペレーション
The ARC-200 phantom may first be imaged with a CT scanner so that the fiducials can be used as a target for the treatment volume. Every beam of the test QA plan can then be measured for delivery accuracy. The ARC technology uses a scintillator to turn the invisible X-rays or protons into a path of visible light that accurately represents the location and profile of the beam. A sensitive USB3 camera then digitizes the beam spot and transfers the bitmap to the ARC computer for analysis and storage.
The BeamWorks Strata software is used to acquire and analyze ARC images. Beam data is displayed in 3D allowing real-time zoom and viewing angle selection. Beam height, width, penumbra and symmetry measurements are available from any angle of gantry rotation. Spreadsheet macros are provided for extended statistical analysis of the captured data. Automated measurements can be made from the graphical user interface (GUI) or customized with an easy-to-use scripting environment.
仕様
| XYビームセンター | 0.2 mm |
|---|---|
| 再現性： | ±0.04 mm (typical) |
| ビーム径： | 0.2 mm |
| 再現性： | ±0.04 mm (typical) |
| Proton Range: | 0.5 mm |
| 再現性： | ±0.2 mm (typical) |
| 解決： | 1280 × 960 pixels with ピクセルあたり8ビットおよび12ビット 2 × 2 binning optional |
|---|---|
| 捕獲率： | 0.1–400 frames/sec |
| シンチレータのサイズ： | 55 × 190 mm dia. |
| レンズMTF： | メガピクセル解像度 |
| カメラインターフェース： | USB 3.0 |
| カメラの上部と側面： | 12.7 mm lead alloy or bismuth composite |
|---|---|
| CCDの寿命： | ~1,500ビーム時間 |
| 高さ×幅×奥行き： | 24 × 22 × 45 cm |
|---|---|
| 体重だ： | 7.0kg（15.5ポンド） |
| エンクロージャーの材質： | アルミニウムとプラスチック |
| キャプチャー・トリガー： | 自動、GUI、スクリプト、またはネットワークウォッチファイル |
|---|
| お客様のご要望に合わせた設定が可能 |
| 電力： | 110V、2または4A |
|---|---|
| 環境だ： | 10度から30度； 90%湿度、結露なし、振動最小 |
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