TO ANSI

Leeds Test Objects的ANSI是模拟位于通用型X射线成像系统上的病患而设计的等效模体。该模体的生产设计满足以下标准：
Leeds Test Objects’ ANSI phantom is designed to simulate a patient in general radiography, meeting the requirements of the following standard:

美国医学物理学家协会(AAPM)31号报告(1990年)的有关规定：“测量诊断用X射线曝光条件标准方法”
AAPM Report No. 31 (1990) “Standardized Methods for Measuring Diagnostic X-ray Exposures”.

由PMMA及铝板组成：
Comprises of PMMA and Al Plates:

• 七张250 x 250 x 25mmPMMA板
  7pcs of PMMA 250 x 250 x 25 mm
• 一张250 x 250 x 1mm铝板
  1pc of Al 250 x 250 x 1 mm
• 一张250 x 250 x 2mm铝板
  1pc of Al 250 x 250 x 2 mm
• 一张250 x 70 x 4.5mm铝板
  1pc of Al 250 x 70 x 4.5 mm
• 四个桶状1英寸(2.54cm)尼龙间隔垫圈
  4pcs of 1 inch nylon spacers
• 便携式软包
  psoft carry bag

使用50mm尼龙间隔垫圈可形成50mm的空气间隙。
A 50mm air gap is achieved using 50mm nylon spacers.

ANSI模体可实现在病患等效条件下进行曝光条件检测。通过使用不同模块的排列组合，可对以下脏器进行检测：
The ANSI phantom allows exposure conditions to be checked under patientequivalent conditions. The following body sections can be simulated using different arrangements of the included parts:

• 便携式软包
  psoft carry bag
• 颅骨
  Skull
• 腹部/腰椎
  Abdomen/lumbar spine