型號(hào)：Number RS-250 RSD模體
廠家：美國(guó)RSD公司, Radiology Support Devices
人型；
頭骨周圍塑造；
檢查的重要物理參數(shù)；
提供真實(shí)系統(tǒng)檢測(cè)；
理想的訓(xùn)練工具；
以聚碳酸酯作為構(gòu)成材料方便平行或縱軸垂直。
A部分：鋁合金板，0.4毫米厚，在一個(gè)45度角的設(shè)置下，測(cè)量光束寬度和切片厚度。
B部分：該劑量部分，提供病人曝光控制，實(shí)際病人掃描前內(nèi)部異常劑量檢查。能夠滿足TLD的相應(yīng)的要求。
C部分：圓柱瘤建立分級(jí)大小和高密度分辨率，低對(duì)比度分辨率和顯示部分束平均影響。
D部分：模擬人的部分提供了實(shí)際聽小骨在有空氣對(duì)比的內(nèi)耳，和在有斷裂的骨頭。小腫瘤后顱窩被放置在一個(gè)地方，這個(gè)地方許多掃描都存在困難。
E部分：直徑為1/4-in的鋁桿位于模體的縱軸線，檢查一般路線對(duì)齊，和“干水“給出了一個(gè)真實(shí)的“噪聲檢查”。
| | Computed Tomography Head Phantom. | |
|  - Anthropomorphic
- Molded Around Skull
- Checks Important Physical Parameters
- Provides Realistic System Check
- Ideal For Training
- Polycarbonate Base Dimensioned For Scans Parallel or Perpendicular to Longitudinal Axis
SECTION A: Aluminum plates, 0.4mm thick, set at a 45° angle, measure beam width and slice thickness.
SECTION B: The dosimetry section provides patient-exposure controls, and checks on abnormal internal doses before actual patient scans. Customization to accommodate TLD with rods or chips is available.
SECTION C: Cylindrical tumors of graded sizes and radiodensities establish high and low-contrast resolution and demonstrate partial beam-averaging effects.
SECTION D: The anthropomorphic section provides actual auditory ossicles in an air-contrast inner ear and a fractured petrous bone. Small tumors in the posterior fossa are placed in an area which most scanners image with difficulty.
SECTION E: 1/4 Inch diameter aluminum rod on the phantom's longitudinal axis, checks general alignment, and "DryWater" gives a realistic "noise check."
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