With 12 LED digital display, can show the tube voltage, current and count value.

具有12位LED数码管显示，可分别显示电压、电流、计数值。

Caused high dose is mainly due to fluorescence exposure time, film number and the use of lower tube voltage of DSA.

引起高剂量的原因主要是荧光照射时间、拍片数量和DSA中较低管电压。

Results the pixel mean value of the image in region of interest was not influenced by the exposure tube voltage or mAs.

结果感兴趣区像素值均值基本不随管电压和毫安秒的变化而改变。

Objective:To obtain suitable digital radiologic exposure factors of CR and DR by measuring stability of their X-ray tube voltage and exposure time.

目的：通过测试数字成像设备的X线机管电压和曝光时间稳定性，探讨数字成像摄影条件的选择原则。

Conclusion Radiation injuries may effectively decreased with reducing X-ray tube voltage and exposure level under the precondition of X-ray image quality to be guaranteed.

结论在保证X线图像质量前提下，降低X射线管电压和曝光量，可以有效地减少放射性损害。