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Synchrotron Light Sources Could Generate X-ray Beams

By MedImaging International staff writers
Posted on 20 Sep 2018
Image: The Hiroshima synchrotron radiation center (Photo courtesy of Hiroshima University).
Image: The Hiroshima synchrotron radiation center (Photo courtesy of Hiroshima University).
A new study demonstrates how superposition of two optical vortex beams can produce structured light in the form of a vector beam.

Researchers at Hiroshima University (Japan), the Japanese National Institutes of Natural Sciences (Sokendai; Okazaki, Japan), and other institutions have developed a new technique to generate structured light for use in research areas that have only been accessible until now with synchrotron radiation, such as X-ray absorption spectroscopy and X-ray crystallography. The method is based on the production of circularly polarized light from two linearly polarized light sources, whose polarization directions are orthogonal to each other.

The current approach involves two vortex beams generated by superposing harmonic radiation on two helical undulators positioned in tandem. As both optical vortex beams contain a point of zero intensity, they form a spiral phase structured light, which can be used in a plethora of medical and other devices, such as three dimensional (3D) scanners, photography, and microscopes. In the future, according to the researchers, the approach could be applied to X-ray wavelength spectrums, such as for X-ray diffraction, scattering, and absorption/emission spectroscopy. The study was on July 1, 2018, in Applied Physics Letters.

“We have demonstrated the generation of the vector beam using synchrotron radiation. The next step of this research is to demonstrate the generation of vector beams of other types, for example, radially polarized beams,” said senior author Professor Masahiro Katoh, PhD, of the Sokendai Institute for Molecular Science. “Our ultimate goal is to control all the optical properties of synchrotron radiation, such as wavelength, coherence, spatial, temporal structures and so on. This work has opened a way to generate X-ray vector beams.”

Synchrotron radiation is an electromagnetic radiation emitted when charged particles are subject to an acceleration perpendicular to their velocity. This can be achieved using bending magnets, undulators and/or wigglers. If the particle is non-relativistic, the emission is called a cyclotron emission. If, on the other hand, the particles are relativistic, the emission is called synchrotron emission. The synchrotron radiation produced in this way has a characteristic polarization, and the frequencies generated can range over the entire electromagnetic spectrum.

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98 (31.948089599609): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (28.133392333984): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (29.087066650391): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (28.848648071289): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (27.179718017578): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (555.99212646484): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
105 (54.121017456055): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
106 (576.97296142578): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294774955 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (581.02607727051): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294774955 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (977.99301147461): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
109 (154.01840209961): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
110 (209.09309387207): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294774955 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (870.94306945801): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294774955 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (779.15191650391): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
113 (607.01370239258): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
114 (107.0499420166): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
115 (75.817108154297): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
116 (336.88545227051): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
117 (70.095062255859): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
118 (522.13668823242): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
119 (73.909759521484): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
120 (439.16702270508): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
121 (!!!!! 62003.85093689): SELECT * FROM jos_deeppockets WHERE jos_deeppockets.cat = 10 AND jos_deeppockets.type = 'deeppockets_item' AND jos_deeppockets.published = 1 AND jos_deeppockets.created + INTERVAL 14 DAY >= NOW() ORDER BY jos_deeppockets.hits DESC LIMIT 7
122 (458.0020904541): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
123 (173.09188842773): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
124 (!!!!! 1451.9691467285): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294774955 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294774955 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 966873.88420105): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
126 (210.04676818848): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
127 (153.0647277832): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800513 LIMIT 1
128 (102.04315185547): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800513 LIMIT 1
129 (114.91775512695): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800359 LIMIT 1
130 (85.830688476562): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800359 LIMIT 1
131 (83.208084106445): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800361 LIMIT 1
132 (71.048736572266): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800361 LIMIT 1
133 (405.07316589355): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
134 (340.93856811523): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
135 (159.02519226074): SELECT name FROM jos_deeppockets WHERE id=211
136 (33.140182495117): SELECT name FROM jos_deeppockets WHERE id=211
137 (530.00450134277): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))211((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
138 (499.96376037598): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))211((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
139 (57.93571472168): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
140 (54.836273193359): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
141 (!!!!! 8878.9463043213): TRUNCATE TABLE jos_trademed_module
142 (975.8472442627): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294774955 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
143 (102.99682617188): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294774955 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
144 (514.03045654297): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
145 (60.081481933594): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
146 (58.889389038086): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
147 (39.100646972656): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
148 (!!!!! 1060.962677002): SELECT jos_item.* FROM jos_item INNER JOIN jos_number ON jos_item.numberID=jos_number.id WHERE 1=1 AND (jos_item.imgMini<>'') AND jos_item.type='L' AND jos_item.numberID= ( SELECT jos_number.id FROM jos_number WHERE jos_number.journalID IN (10) and jos_number.id in (select distinct jos_number.id from jos_number join jos_item on jos_item.numberid=jos_number.id where jos_item.type='P') ORDER BY (CONVERT(SUBSTRING(issue,1,2),SIGNED) + (CONVERT(SUBSTRING(issue,3,2),SIGNED)*100)) DESC LIMIT 0,1 ) ORDER BY RAND() DESC LIMIT 6
149 (57.93571472168): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
150 (39.100646972656): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
151 (37.908554077148): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294774955 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294774955 AND type='deeppockets_item' AND published='1' LIMIT 1
152 (30.994415283203): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=211 or channel_id is null)
153 (26.941299438477): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=211 or channel_id is null)
154 (40.054321289062): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
155 (58.889389038086): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
156 (40.054321289062): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294774955 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294774955 AND published='1' LIMIT 1
157 (187.15858459473): select jos_twitters.link from jos_twitters where cat=10
158 (80.108642578125): select jos_facebook.link from jos_facebook where cat=10
159 (66.995620727539): select jos_google_plus.link from jos_google_plus where cat=10
160 (107.0499420166): select jos_linkedin.link from jos_linkedin where cat=10
161 (366.9261932373): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)
162 (!!!!! 2032.995223999): insert into jos_banners_delta values (14615,'2025-06-20 16:36:37','216.73.216.120','view'),(14202,'2025-06-20 16:36:37','216.73.216.120','view'),(14203,'2025-06-20 16:36:37','216.73.216.120','view')