div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: chap1 - UnicalWhile improvements in third generation synchrotron radiation sources are still possiblefourth generation sources are being developed based On frec electron lasers FELS src=https:reader035fdocumentsusreader035viewer20220629155e9b5baf305fd13c2d4f461ehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: chap1 - UnicalWhile improvements in third generation synchrotron radiation sources are still possiblefourth generation sources are being developed based On frec electron lasers FELS src=https:reader035fdocumentsusreader035viewer20220629155e9b5baf305fd13c2d4f461ehtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: chap1 - UnicalWhile improvements in third generation synchrotron radiation sources are still possiblefourth generation sources are being developed based On frec electron lasers FELS src=https:reader035fdocumentsusreader035viewer20220629155e9b5baf305fd13c2d4f461ehtml5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: chap1 - UnicalWhile improvements in third generation synchrotron radiation sources are still possiblefourth generation sources are being developed based On frec electron lasers FELS src=https:reader035fdocumentsusreader035viewer20220629155e9b5baf305fd13c2d4f461ehtml5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: chap1 - UnicalWhile improvements in third generation synchrotron radiation sources are still possiblefourth generation sources are being developed based On frec...