پاورپوینت LIGO-LASER INTERFEROMETER GRAVITATIONAL-WAVE OBSERVATORY -اسلاید 21 انگلیسی

پاورپوینت LIGO-LASER INTERFEROMETER GRAVITATIONAL-WAVE OBSERVATORY -اسلاید 21 انگلیسی

پاورپوینت LIGO-LASER INTERFEROMETER GRAVITATIONAL-WAVE OBSERVATORY -اسلاید 21 انگلیسی

قسمتی از اسلایدها

 

 

 

 

 

What is LIGO?

—The laser interferometers at LIGO use the fringe pattern of a divided laser beam to measure any lengthening or shortening of space due to gravitational waves. The divided laser beam will travel through two steel vacuum tubes oriented at a right angle. When a gravitational wave distortion causes one beam to lengthen and the other to shrink, the interference pattern of the two beams will. LIGO was first designed to have an effective range of ~70 million light years.