In order to diagnose X-ray emitted from the plasma under high temperature,a novel spherical bent crystal analyzer was developed based on X-ray Bragg diffraction theory where the diffraction crystal is α-quartz and the bent radius is 250 mm.The detector(including image plate and Kodak direct exposure X-ray film) was used to obtain the X-ray spectra of Cu plasma and Ti plasma separately with spherical bent crystal analyzer in the X-ray diffraction and the Z pinch implosion.The experimental results...