1. An analysis of self-amplified spontaneous emission;Kim;Nucl. Instrum. Methods Phys. Res., Sect. A,1986
2. Undulator demagnetization due to radiation losses at FLASH;Skupin,2008
3. Undulator radiation dose caused by synchrotron radiation at the European XFEL;Liu,2019
4. Radiation damage to advanced photon source undulators;Sasaki,2005
5. Radiation damage of undulators at PETRA III;Vagin,2014