-In the Martin van Heel paper on phase contrast microscopy, he talks about the phase problem....

Transcribed Image Text:

-In the Martin van Heel paper on phase contrast microscopy, he talks about the phase problem. What is the phase problem in crystallography which makes it difficult to derive the crystal structure of the material under study using diffraction intensities? T -In the Martin van Heel paper on phase contrast microscopy, he talks about the phase problem. What is the phase problem in crystallography which makes it difficult to derive the crystal structure of the material under study using diffraction intensities? T