Measurement of the absolute number of photons of the hard X-ray beamline at the Linac Coherent Light Source

Song, Sanghoon; Alonso-Mori, Roberto; Chollet, Matthieu; Feng, Yiping; Glownia, James M.; Lemke, Henrik T.; Sikorski, Marcin; Zhu, Diling; Moeller, Stefan; Lee, Hae Ja; Hunter, Mark S.; Carini, Gabriella; Tiedtke, Kai; Jastrow, Ulf; Sorokin, Andrey; Richter, Mathias; Owada, Shigeki; Tono, Kensuke; Saito, Norio; Tanaka, Takahiro; Kato, Masahiro; Yabashi, Makina; Robert, Aymeric

doi:https://doi.org/10.1107/s1600577519000250

Zugriffsnummer	45218
Dokumenttyp	Zeitschriftenartikel
Peer Review	mit Peer Review
Sprache	Englisch
Titel	Measurement of the absolute number of photons of the hard X-ray beamline at the Linac Coherent Light Source
Autor(in); Institution	Song, Sanghoon; Linac Coherent Light Source, Menlo Park, USA Alonso-Mori, Roberto; Linac Coherent Light Source, Menlo Park, USA Chollet, Matthieu; Linac Coherent Light Source, Menlo Park, USA Feng, Yiping; Linac Coherent Light Source, Menlo Park, USA Glownia, James M.; Linac Coherent Light Source, Menlo Park, USA Lemke, Henrik T.; Linac Coherent Light Source, Menlo Park, USA Sikorski, Marcin; Linac Coherent Light Source, Menlo Park, USA Zhu, Diling; Linac Coherent Light Source, Menlo Park, USA Moeller, Stefan; Linac Coherent Light Source, Menlo Park, USA Lee, Hae Ja; Linac Coherent Light Source, Menlo Park, USA Hunter, Mark S.; Linac Coherent Light Source, Menlo Park, USA Carini, Gabriella; Brookhaven National Laboratory, Upton, NY, USA Tiedtke, Kai; Deutsches Elektronen-Synchrotron, Hamburg, GERMANY Jastrow, Ulf; Deutsches Elektronen-Synchrotron, Hamburg, GERMANY Sorokin, Andrey; Deutsches Elektronen-Synchrotron, Hamburg, GERMANY Richter, Mathias; 7, Temperatur und Synchrotronstrahlung, PTB-Berlin Owada, Shigeki; RIKEN, Hyogo, JAPAN Tono, Kensuke; RIKEN, Hyogo, JAPAN Saito, Norio; RIKEN, Hyogo, JAPAN Tanaka, Takahiro; RIKEN, Hyogo, JAPAN Kato, Masahiro; RIKEN, Hyogo, JAPAN Yabashi, Makina; RIKEN, Hyogo, JAPAN Robert, Aymeric; Linac Coherent Light Source, Menlo Park, USA
Quelle/Jahr	Journal of Synchrotron Radiation: 26 (2019), 2, 320 - 327
ISSN	0909-0495 (PRINT) ; 1600-5775 (ONLINE)
DOI	https://doi.org/10.1107/s1600577519000250
Verlag	Oxford: Blackwell
Freie Schlagworte	FEL ; hard X-rays ; absolute intensity
Zusammenfassung	X-ray free-electron lasers provide intense pulses of coherent X-rays with a short pulse duration. These sources are chaotic by nature and therefore, to be used at their full potential, require that every X-ray pulse is characterized in terms of various relevant properties such as intensity, photon energy, position and timing. Diagnostics are for example installed on an X-ray beamline to specifically monitor the intensity of individual X-ray pulses. To date, these can however only provide a single-shot value of the relative number of photons per shot. Here are reported measurements made in January 2015 of the absolute number of photons in the hard X-ray regime at LCLS which is typically 3.5 1011 photons shot1 between 6 and 9.5 keV at the X-ray Pump–Probe instrument. Moreover, an average transmission of ~62% of the hard X-ray beamline over this energy range is measured and the third-harmonic content of ~0.47% below 9 keV is characterized.

Kostenfreier Zugang	Open Access Hybrid
Rechteinformation	CC BY 4.0 ; Creative Commons Attribution 4.0 License

Themenbereich der Metrologie

Photometrie und Radiometrie

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Song, S., Alonso-Mori, R., Chollet, M., Feng, Y., Glownia, J. M., Lemke, H. T., Sikorski, M., Zhu, D., Moeller, S., Lee, H. J., Hunter, M. S., Carini, G., Tiedtke, K., Jastrow, U., Sorokin, A., Richter, M., Owada, S., Tono, K., Saito, N., Tanaka, T., Kato, M., Yabashi, M., & Robert, A. (2019). Measurement of the absolute number of photons of the hard X-ray beamline at the Linac Coherent Light Source. Journal of Synchrotron Radiation, 26(2), 320–327. https://doi.org/10.1107/s1600577519000250

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