PETRA的X射线波荡器光束线中的束流位置监测器。

Beam-position monitors in the X-ray undulator beamline at PETRA.

作者信息

Hahn U, Brefeld W, Hesse M, Schneider J R, Schulte-Schrepping H, Seebach M, Werner M

机构信息

Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronen Synchrotron DESY, Notkestrasse 85, D-22607 Hamburg, Germany.

出版信息

J Synchrotron Radiat. 1998 May 1;5(Pt 3):627-9. doi: 10.1107/S0909049597013940.

DOI:10.1107/S0909049597013940

PMID:15263600

Abstract

At the 12 GeV storage ring PETRA, the first synchrotron radiation beamline uses a 4 m-long undulator. The beamline, with a length of 130 m between source and sample, delivers hard X-ray photons usable up to 300 keV. The photon beam has a total power of 7 kW. Combined with the high brilliance, the powerful beam is very critical for all beamline components. Copper, located at a distance of 26 m, hit by the full undulator beam, melts within 20 ms. Different monitors are described for stable, safe and reliable operation of beam and experiments.

摘要

在12 GeV储存环PETRA中，第一条同步辐射光束线使用了一个4米长的波荡器。该光束线在光源与样品之间的长度为130米，可提供能量高达300 keV的硬X射线光子。光子束的总功率为7千瓦。结合高亮度，这种强光束对所有光束线部件都非常关键。位于26米处的铜，受到整个波荡器光束的照射，在20毫秒内就会熔化。文中描述了不同的监测器，以实现光束和实验的稳定、安全及可靠运行。