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乳腺对比度细节阈值检测模体CDMAM 4.0 符合WS 518-2017 *屏片摄影系统质量控制检测规范

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乳腺对比度细节阈值检测模体CDMAM 4.0

对比度细节阈值检测模体CDMAM 4.0

672个金盘分成纵向21个模块，直径范围从0.08到2.0mm；
每个金盘直径都有自己的优化金厚度范围，有16列不同厚度的圆盘模块
43个额外设置的参考园盘模块，用于优化计算机化评分
0.5mm铝质（纯度：99.5％）底座
PMMA 板盖规格 (240 x 162 x 3 mm)
4 ×10 mm 厚PMMA 均匀性衰减模体(误差 ± 0.1 mm)
纯金圆盘：
厚度范围：0.012 µm - 2.8 µm, 误差：± 3% (平均 ± 2SD)
直径范围: 0.08 mm to 2.0 mm, 误差：± 0.005 mm (平均 ± 2SD)

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