Results ( 1 ) The WS value of subscan direction was 7.26 u00d7 10 - 5 mm 2 when the spatial frequency was 1.0 LP / mm it was 1.57 times larger than that of scan direction .

u7ed3u679cuff081uff09u5f53u7a7au95f4u9891u7387u4e3a10LP/mmu65f6uff0c u526fu626bu63cfu65b9u5411u4e0au7684 u603bWSu503cu4e3a 726u00d7 10-5mm2uff0cu662f u4e3bu626bu63cfu65b9u5411u4e0a u603bWSu503cu7684157u500duff0cu5728u9ad8u7a7au95f4u9891u7387 u8303u56f4 u5185u51fau73b0u5cf0u503cu3002