{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T10:52:29Z","timestamp":1753872749383,"version":"3.41.2"},"reference-count":8,"publisher":"AIP Publishing","issue":"4","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2009,4,1]]},"abstract":"<jats:p>At BW4 at HASYLAB a beryllium compound refractive lens (Be-CRL) is used for the focusing in small-angle x-ray scattering experiments. Using it provides the advantages of higher long-term stability and a much easier alignment compared to a setup with focusing mirrors. In our investigations presented here, we show the advantages of using a Be-CRL in small-angle and also ultra small-angle x-ray scattering. We investigated the beam characteristics at the sample position with respect to spot size and photon flux. The spot size is comparable to that of a setup with focusing mirrors but with a gain in flux and better long-term stability. It is also shown that plane mirrors are still necessary to suppress higher order energies passing the monochromator.<\/jats:p>","DOI":"10.1063\/1.3104186","type":"journal-article","created":{"date-parts":[[2009,4,8]],"date-time":"2009-04-08T23:28:35Z","timestamp":1239233315000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":12,"title":["Small angle x-ray scattering with a beryllium compound refractive lens as focusing optic"],"prefix":"10.1063","volume":"80","author":[{"given":"Andreas","family":"Timmann","sequence":"first","affiliation":[{"name":"DESY 1 HASYLAB, , Notkestrasse 85, 22607 Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ralph","family":"D\u00f6hrmann","sequence":"additional","affiliation":[{"name":"DESY 1 HASYLAB, , Notkestrasse 85, 22607 Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tom","family":"Schubert","sequence":"additional","affiliation":[{"name":"DESY 1 HASYLAB, , Notkestrasse 85, 22607 Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Horst","family":"Schulte-Schrepping","sequence":"additional","affiliation":[{"name":"DESY 1 HASYLAB, , Notkestrasse 85, 22607 Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ulrich","family":"Hahn","sequence":"additional","affiliation":[{"name":"DESY 1 HASYLAB, , Notkestrasse 85, 22607 Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marion","family":"Kuhlmann","sequence":"additional","affiliation":[{"name":"DESY 1 HASYLAB, , Notkestrasse 85, 22607 Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rainer","family":"Gehrke","sequence":"additional","affiliation":[{"name":"DESY 1 HASYLAB, , Notkestrasse 85, 22607 Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephan Volkher","family":"Roth","sequence":"additional","affiliation":[{"name":"DESY 1 HASYLAB, , Notkestrasse 85, 22607 Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andreas","family":"Schropp","sequence":"additional","affiliation":[{"name":"TU Dresden 2 , Zellescher Weg 16, 01069 Dresden, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Schroer","sequence":"additional","affiliation":[{"name":"TU Dresden 2 , Zellescher Weg 16, 01069 Dresden, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruno","family":"Lengeler","sequence":"additional","affiliation":[{"name":"RWTH Aachen 3 Physikalisches Institut IIB, , 52056 Aachen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"317","published-online":{"date-parts":[[2009,4,7]]},"reference":[{"key":"2023063022090293000_c1","doi-asserted-by":"publisher","first-page":"1153","DOI":"10.1107\/S0909049599009747","volume":"6","year":"1999","journal-title":"J. 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