photomultifier with low noise

例句：

1. 1. The photomultifier is used to enhance the quality of digital images.
   照片增强器用于提高数字图像的质量。
2. 2.The photomultifier was designed to improve the contrast and detail in photographs.
   照片增强器被设计用来提高照片的对比度和细节。
3. 3. The photomultifier has been found to be effective in reducing noise and improving image clarity.
   研究发现，照片增强器能有效降低噪声并提高图像清晰度。