Hard X‐ray self‐seeding commissioning at PAL‐XFEL
A wake monochromator based on a large‐area diamond single crystal for hard X‐ray self‐seeding has been successfully installed and commissioned in the hard X‐ray free‐electron laser (FEL) at the Pohang Accelerator Laboratory with international collaboration. For this commissioning, the self‐seeding w...
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| Veröffentlicht in: | Journal of synchrotron radiation 2019-07, Vol.26 (4), p.1101-1109 |
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| creator | Min, Chang-Ki Nam, Inhyuk Yang, Haeryong Kim, Gyujin Shim, Chi Hyun Ko, Jun Ho Cho, Myung-Hoon Heo, Hoon Oh, Bonggi Suh, Young Jin Kim, Min Jae Na, Donghyun Kim, Changbum Kim, Yongsam Chun, Sae Hwan Lee, Jae Hyuk Kim, Jangwoo Kim, Sunam Eom, Intae Kim, Seung Nam Koo, Tae-Yeong Rah, Seungyu Shvyd'ko, Yuri Shu, Deming Kim, Kwang-Je Terentyev, Sergey Blank, Vladimir Kang, Heung-Sik |
| description | A wake monochromator based on a large‐area diamond single crystal for hard X‐ray self‐seeding has been successfully installed and commissioned in the hard X‐ray free‐electron laser (FEL) at the Pohang Accelerator Laboratory with international collaboration. For this commissioning, the self‐seeding was demonstrated with a low bunch charge (40 pC) and the nominal bunch charge (180 pC) of self‐amplified spontaneous emission (SASE) operation. The FEL pulse lengths were estimated as 7 fs and 29.5 fs, respectively. In both cases, the average spectral brightness increased by more than three times compared with the SASE mode. The self‐seeding experiment was demonstrated for the first time using a crystal with a thickness of 30 µm, and a narrow bandwidth of 0.22 eV (full width at half‐maximum) was obtained at 8.3 keV, which confirmed the functionality of a crystal with such a small thickness. In the nominal bunch‐charge self‐seeding experiment, the histogram of the intensity integrated over a 1 eV bandwidth showed a well defined Gaussian profile, which is evidence of the saturated FEL and a minimal electron‐energy jitter (∼1.2 × 10−4) effect. The corresponding low photon‐energy jitter (∼2.4 × 10−4) of the SASE FEL pulse, which is two times lower than the Pierce parameter, enabled the seeding power to be maximized by maintaining the spectral overlap between SASE FEL gain and the monochromator.
Hard X‐ray self‐seeding based on a diamond wake monochromator has been commissioned at PAL‐XFEL using various bunch charges and crystals. The performances of self‐seeding and low electron‐energy jitter (∼10−4) are discussed. |
| doi_str_mv | 10.1107/S1600577519005460 |
| format | Article |
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Hard X‐ray self‐seeding based on a diamond wake monochromator has been commissioned at PAL‐XFEL using various bunch charges and crystals. The performances of self‐seeding and low electron‐energy jitter (∼10−4) are discussed.</description><identifier>ISSN: 1600-5775</identifier><identifier>ISSN: 0909-0495</identifier><identifier>EISSN: 1600-5775</identifier><identifier>DOI: 10.1107/S1600577519005460</identifier><identifier>PMID: 31274433</identifier><language>eng</language><publisher>5 Abbey Square, Chester, Cheshire CH1 2HU, England: International Union of Crystallography</publisher><subject>Commissioning ; diamond monochromators ; Diamonds ; electron-energy jitter ; free-electron lasers ; hard X-rays ; Histograms ; OTHER INSTRUMENTATION ; self-amplified spontaneous emission ; self-seeding ; Single crystals ; Spontaneous emission ; Thickness ; Vibration</subject><ispartof>Journal of synchrotron radiation, 2019-07, Vol.26 (4), p.1101-1109</ispartof><rights>International Union of Crystallography, 2019</rights><rights>Copyright Wiley Subscription Services, Inc. Jul 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5155-a43c3a37eb1c22903f324d0af23b04030dd227dbc71c6e41cc6e90ca3ef88f843</citedby><cites>FETCH-LOGICAL-c5155-a43c3a37eb1c22903f324d0af23b04030dd227dbc71c6e41cc6e90ca3ef88f843</cites><orcidid>0000-0002-6650-7854 ; 0000-0002-8804-3827 ; 0000-0001-7577-9563 ; 0000-0002-3390-4052 ; 0000-0002-6773-3781 ; 0000-0002-8186-0226 ; 0000000288043827 ; 0000000233904052 ; 0000000175779563 ; 0000000266507854</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1107%2FS1600577519005460$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1107%2FS1600577519005460$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,776,780,881,1411,11541,27901,27902,45550,45551,46027,46451</link.rule.ids><linktorsrc>$$Uhttps://onlinelibrary.wiley.com/doi/abs/10.1107%2FS1600577519005460$$EView_record_in_Wiley-Blackwell$$FView_record_in_$$GWiley-Blackwell</linktorsrc><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31274433$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/servlets/purl/1576740$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Min, Chang-Ki</creatorcontrib><creatorcontrib>Nam, Inhyuk</creatorcontrib><creatorcontrib>Yang, Haeryong</creatorcontrib><creatorcontrib>Kim, Gyujin</creatorcontrib><creatorcontrib>Shim, Chi Hyun</creatorcontrib><creatorcontrib>Ko, Jun Ho</creatorcontrib><creatorcontrib>Cho, Myung-Hoon</creatorcontrib><creatorcontrib>Heo, Hoon</creatorcontrib><creatorcontrib>Oh, Bonggi</creatorcontrib><creatorcontrib>Suh, Young Jin</creatorcontrib><creatorcontrib>Kim, Min Jae</creatorcontrib><creatorcontrib>Na, Donghyun</creatorcontrib><creatorcontrib>Kim, Changbum</creatorcontrib><creatorcontrib>Kim, Yongsam</creatorcontrib><creatorcontrib>Chun, Sae Hwan</creatorcontrib><creatorcontrib>Lee, Jae Hyuk</creatorcontrib><creatorcontrib>Kim, Jangwoo</creatorcontrib><creatorcontrib>Kim, Sunam</creatorcontrib><creatorcontrib>Eom, Intae</creatorcontrib><creatorcontrib>Kim, Seung Nam</creatorcontrib><creatorcontrib>Koo, Tae-Yeong</creatorcontrib><creatorcontrib>Rah, Seungyu</creatorcontrib><creatorcontrib>Shvyd'ko, Yuri</creatorcontrib><creatorcontrib>Shu, Deming</creatorcontrib><creatorcontrib>Kim, Kwang-Je</creatorcontrib><creatorcontrib>Terentyev, Sergey</creatorcontrib><creatorcontrib>Blank, Vladimir</creatorcontrib><creatorcontrib>Kang, Heung-Sik</creatorcontrib><creatorcontrib>Argonne National Lab. (ANL), Argonne, IL (United States)</creatorcontrib><title>Hard X‐ray self‐seeding commissioning at PAL‐XFEL</title><title>Journal of synchrotron radiation</title><addtitle>J Synchrotron Radiat</addtitle><description>A wake monochromator based on a large‐area diamond single crystal for hard X‐ray self‐seeding has been successfully installed and commissioned in the hard X‐ray free‐electron laser (FEL) at the Pohang Accelerator Laboratory with international collaboration. For this commissioning, the self‐seeding was demonstrated with a low bunch charge (40 pC) and the nominal bunch charge (180 pC) of self‐amplified spontaneous emission (SASE) operation. The FEL pulse lengths were estimated as 7 fs and 29.5 fs, respectively. In both cases, the average spectral brightness increased by more than three times compared with the SASE mode. The self‐seeding experiment was demonstrated for the first time using a crystal with a thickness of 30 µm, and a narrow bandwidth of 0.22 eV (full width at half‐maximum) was obtained at 8.3 keV, which confirmed the functionality of a crystal with such a small thickness. In the nominal bunch‐charge self‐seeding experiment, the histogram of the intensity integrated over a 1 eV bandwidth showed a well defined Gaussian profile, which is evidence of the saturated FEL and a minimal electron‐energy jitter (∼1.2 × 10−4) effect. The corresponding low photon‐energy jitter (∼2.4 × 10−4) of the SASE FEL pulse, which is two times lower than the Pierce parameter, enabled the seeding power to be maximized by maintaining the spectral overlap between SASE FEL gain and the monochromator.
Hard X‐ray self‐seeding based on a diamond wake monochromator has been commissioned at PAL‐XFEL using various bunch charges and crystals. The performances of self‐seeding and low electron‐energy jitter (∼10−4) are discussed.</description><subject>Commissioning</subject><subject>diamond monochromators</subject><subject>Diamonds</subject><subject>electron-energy jitter</subject><subject>free-electron lasers</subject><subject>hard X-rays</subject><subject>Histograms</subject><subject>OTHER INSTRUMENTATION</subject><subject>self-amplified spontaneous emission</subject><subject>self-seeding</subject><subject>Single crystals</subject><subject>Spontaneous emission</subject><subject>Thickness</subject><subject>Vibration</subject><issn>1600-5775</issn><issn>0909-0495</issn><issn>1600-5775</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkMtKw0AUhgdRbK0-gBsJunFTPXPLJMtSWlsJKFShXQ3TyURT0kzNpEh3PoLP6JM4oVVEF27O9Ts_Mz9CpxiuMAZxPcEhABeC49hnFsIeajejbjPb_1G30JFzCwAcCkIPUYtiIhijtI3ESFVpMP14e6_UJnCmyHzpjEnz8inQdrnMnctt2XSqDu57iV9Ph4PkGB1kqnDmZJc76HE4eOiPusndzbjfS7qaY867ilFNFRVmjjUhMdCMEpaCygidAwMKaUqISOdaYB0ahrWPMWhFTRZFWcRoB51vda2rc-l0Xhv9rG1ZGl1LzEUovEoHXW6hVWVf1sbV0j9bm6JQpbFrJwnhIcQxjYlHL36hC7uuSv-FhqIgQhZFnsJbSlfWucpkclXlS1VtJAbZWC__WO9vznbK6_nSpN8XX157IN4Cr3lhNv8rytvJjMzGHASnn91yjbM</recordid><startdate>201907</startdate><enddate>201907</enddate><creator>Min, Chang-Ki</creator><creator>Nam, Inhyuk</creator><creator>Yang, Haeryong</creator><creator>Kim, Gyujin</creator><creator>Shim, Chi Hyun</creator><creator>Ko, Jun Ho</creator><creator>Cho, Myung-Hoon</creator><creator>Heo, Hoon</creator><creator>Oh, Bonggi</creator><creator>Suh, Young Jin</creator><creator>Kim, Min Jae</creator><creator>Na, Donghyun</creator><creator>Kim, Changbum</creator><creator>Kim, Yongsam</creator><creator>Chun, Sae Hwan</creator><creator>Lee, Jae Hyuk</creator><creator>Kim, Jangwoo</creator><creator>Kim, Sunam</creator><creator>Eom, Intae</creator><creator>Kim, Seung Nam</creator><creator>Koo, Tae-Yeong</creator><creator>Rah, Seungyu</creator><creator>Shvyd'ko, Yuri</creator><creator>Shu, Deming</creator><creator>Kim, Kwang-Je</creator><creator>Terentyev, Sergey</creator><creator>Blank, Vladimir</creator><creator>Kang, Heung-Sik</creator><general>International Union of Crystallography</general><general>John Wiley & Sons, Inc</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>7X8</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-6650-7854</orcidid><orcidid>https://orcid.org/0000-0002-8804-3827</orcidid><orcidid>https://orcid.org/0000-0001-7577-9563</orcidid><orcidid>https://orcid.org/0000-0002-3390-4052</orcidid><orcidid>https://orcid.org/0000-0002-6773-3781</orcidid><orcidid>https://orcid.org/0000-0002-8186-0226</orcidid><orcidid>https://orcid.org/0000000288043827</orcidid><orcidid>https://orcid.org/0000000233904052</orcidid><orcidid>https://orcid.org/0000000175779563</orcidid><orcidid>https://orcid.org/0000000266507854</orcidid></search><sort><creationdate>201907</creationdate><title>Hard X‐ray self‐seeding commissioning at PAL‐XFEL</title><author>Min, Chang-Ki ; Nam, Inhyuk ; Yang, Haeryong ; Kim, Gyujin ; Shim, Chi Hyun ; Ko, Jun Ho ; Cho, Myung-Hoon ; Heo, Hoon ; Oh, Bonggi ; Suh, Young Jin ; Kim, Min Jae ; Na, Donghyun ; Kim, Changbum ; Kim, Yongsam ; Chun, Sae Hwan ; Lee, Jae Hyuk ; Kim, Jangwoo ; Kim, Sunam ; Eom, Intae ; Kim, Seung Nam ; Koo, Tae-Yeong ; Rah, Seungyu ; Shvyd'ko, Yuri ; Shu, Deming ; Kim, Kwang-Je ; Terentyev, Sergey ; Blank, Vladimir ; Kang, Heung-Sik</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5155-a43c3a37eb1c22903f324d0af23b04030dd227dbc71c6e41cc6e90ca3ef88f843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Commissioning</topic><topic>diamond monochromators</topic><topic>Diamonds</topic><topic>electron-energy jitter</topic><topic>free-electron lasers</topic><topic>hard X-rays</topic><topic>Histograms</topic><topic>OTHER INSTRUMENTATION</topic><topic>self-amplified spontaneous emission</topic><topic>self-seeding</topic><topic>Single crystals</topic><topic>Spontaneous emission</topic><topic>Thickness</topic><topic>Vibration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Min, Chang-Ki</creatorcontrib><creatorcontrib>Nam, Inhyuk</creatorcontrib><creatorcontrib>Yang, Haeryong</creatorcontrib><creatorcontrib>Kim, Gyujin</creatorcontrib><creatorcontrib>Shim, Chi Hyun</creatorcontrib><creatorcontrib>Ko, Jun Ho</creatorcontrib><creatorcontrib>Cho, Myung-Hoon</creatorcontrib><creatorcontrib>Heo, Hoon</creatorcontrib><creatorcontrib>Oh, Bonggi</creatorcontrib><creatorcontrib>Suh, Young Jin</creatorcontrib><creatorcontrib>Kim, Min Jae</creatorcontrib><creatorcontrib>Na, Donghyun</creatorcontrib><creatorcontrib>Kim, Changbum</creatorcontrib><creatorcontrib>Kim, Yongsam</creatorcontrib><creatorcontrib>Chun, Sae Hwan</creatorcontrib><creatorcontrib>Lee, Jae Hyuk</creatorcontrib><creatorcontrib>Kim, Jangwoo</creatorcontrib><creatorcontrib>Kim, Sunam</creatorcontrib><creatorcontrib>Eom, Intae</creatorcontrib><creatorcontrib>Kim, Seung Nam</creatorcontrib><creatorcontrib>Koo, Tae-Yeong</creatorcontrib><creatorcontrib>Rah, Seungyu</creatorcontrib><creatorcontrib>Shvyd'ko, Yuri</creatorcontrib><creatorcontrib>Shu, Deming</creatorcontrib><creatorcontrib>Kim, Kwang-Je</creatorcontrib><creatorcontrib>Terentyev, Sergey</creatorcontrib><creatorcontrib>Blank, Vladimir</creatorcontrib><creatorcontrib>Kang, Heung-Sik</creatorcontrib><creatorcontrib>Argonne National Lab. (ANL), Argonne, IL (United States)</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Journal of synchrotron radiation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Min, Chang-Ki</au><au>Nam, Inhyuk</au><au>Yang, Haeryong</au><au>Kim, Gyujin</au><au>Shim, Chi Hyun</au><au>Ko, Jun Ho</au><au>Cho, Myung-Hoon</au><au>Heo, Hoon</au><au>Oh, Bonggi</au><au>Suh, Young Jin</au><au>Kim, Min Jae</au><au>Na, Donghyun</au><au>Kim, Changbum</au><au>Kim, Yongsam</au><au>Chun, Sae Hwan</au><au>Lee, Jae Hyuk</au><au>Kim, Jangwoo</au><au>Kim, Sunam</au><au>Eom, Intae</au><au>Kim, Seung Nam</au><au>Koo, Tae-Yeong</au><au>Rah, Seungyu</au><au>Shvyd'ko, Yuri</au><au>Shu, Deming</au><au>Kim, Kwang-Je</au><au>Terentyev, Sergey</au><au>Blank, Vladimir</au><au>Kang, Heung-Sik</au><aucorp>Argonne National Lab. (ANL), Argonne, IL (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hard X‐ray self‐seeding commissioning at PAL‐XFEL</atitle><jtitle>Journal of synchrotron radiation</jtitle><addtitle>J Synchrotron Radiat</addtitle><date>2019-07</date><risdate>2019</risdate><volume>26</volume><issue>4</issue><spage>1101</spage><epage>1109</epage><pages>1101-1109</pages><issn>1600-5775</issn><issn>0909-0495</issn><eissn>1600-5775</eissn><abstract>A wake monochromator based on a large‐area diamond single crystal for hard X‐ray self‐seeding has been successfully installed and commissioned in the hard X‐ray free‐electron laser (FEL) at the Pohang Accelerator Laboratory with international collaboration. For this commissioning, the self‐seeding was demonstrated with a low bunch charge (40 pC) and the nominal bunch charge (180 pC) of self‐amplified spontaneous emission (SASE) operation. The FEL pulse lengths were estimated as 7 fs and 29.5 fs, respectively. In both cases, the average spectral brightness increased by more than three times compared with the SASE mode. The self‐seeding experiment was demonstrated for the first time using a crystal with a thickness of 30 µm, and a narrow bandwidth of 0.22 eV (full width at half‐maximum) was obtained at 8.3 keV, which confirmed the functionality of a crystal with such a small thickness. In the nominal bunch‐charge self‐seeding experiment, the histogram of the intensity integrated over a 1 eV bandwidth showed a well defined Gaussian profile, which is evidence of the saturated FEL and a minimal electron‐energy jitter (∼1.2 × 10−4) effect. The corresponding low photon‐energy jitter (∼2.4 × 10−4) of the SASE FEL pulse, which is two times lower than the Pierce parameter, enabled the seeding power to be maximized by maintaining the spectral overlap between SASE FEL gain and the monochromator.
Hard X‐ray self‐seeding based on a diamond wake monochromator has been commissioned at PAL‐XFEL using various bunch charges and crystals. The performances of self‐seeding and low electron‐energy jitter (∼10−4) are discussed.</abstract><cop>5 Abbey Square, Chester, Cheshire CH1 2HU, England</cop><pub>International Union of Crystallography</pub><pmid>31274433</pmid><doi>10.1107/S1600577519005460</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-6650-7854</orcidid><orcidid>https://orcid.org/0000-0002-8804-3827</orcidid><orcidid>https://orcid.org/0000-0001-7577-9563</orcidid><orcidid>https://orcid.org/0000-0002-3390-4052</orcidid><orcidid>https://orcid.org/0000-0002-6773-3781</orcidid><orcidid>https://orcid.org/0000-0002-8186-0226</orcidid><orcidid>https://orcid.org/0000000288043827</orcidid><orcidid>https://orcid.org/0000000233904052</orcidid><orcidid>https://orcid.org/0000000175779563</orcidid><orcidid>https://orcid.org/0000000266507854</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of synchrotron radiation, 2019-07, Vol.26 (4), p.1101-1109 |
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| source | Wiley Online Library Open Access |
| subjects | Commissioning diamond monochromators Diamonds electron-energy jitter free-electron lasers hard X-rays Histograms OTHER INSTRUMENTATION self-amplified spontaneous emission self-seeding Single crystals Spontaneous emission Thickness Vibration |
| title | Hard X‐ray self‐seeding commissioning at PAL‐XFEL |
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