First full dynamic range calibration of the JUNGFRAU photon detector

Redford, S.; Andrä, M.; Barten, R.; Bergamaschi, A.; Brückner, Martin; Dinapoli, R.; Fröjdh, E.; Greiffenberg, D.; Lopez-Cuenca, C.; Mezza, D.; Mozzanica, A.; Ramilli, Marco; Ruat, M.; Ruder, C.; Schmitt, B.; Shi, X.; Thattil, D.; Tinti, G.; Vetter, S.; Zhang, Jiaguo

doi:10.1088/1748-0221/13/01/c01027

Cited by 27 publications

(28 citation statements)

References 5 publications

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“…Gain values are assumed to be invariant with experimental conditions and were measured for the JF1M previously 26 . The achieved accuracy of the gain calibration is at about 1% currently 43 .…”

Section: Methodsmentioning

confidence: 99%

“…As shown in Fig. 1, the JUNGFRAU has three separate gains per pixel, which means that low-intensity regions of the frame benefit from high gain and single-photon sensitivity, whereas strongly diffracting Bragg peaks are accurately measured thanks to the ability to switch to low gain and extend the dynamic range to 12 million counts per second (Mcps) per pixel at 12.0 keV, limited by the current 1.1-kHz frame rate 26 . The gain is switched automatically and independently per pixel depending on the detected charge.…”

mentioning

confidence: 99%

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Fast and accurate data collection for macromolecular crystallography using the JUNGFRAU detector

et al. 2018

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X reveals 3D structures and elucidates functions of biomolecules with atomic resolution, thereby enabling researchers to make fundamental contributions to molecular biology and structure-based drug discovery 1. Synchrotron radiation, together with large-format 2D detectors, has been essential to the success of modern MX 2,3. In parallel with the evolution of synchrotron sources, several generations of X-ray detectors have been developed, namely, image plates 4 , multiwire proportional counters 5 , X-ray television detectors 6 , charge-coupled device (CCD) detectors 7 , and hybrid (pixel-array) photon-counting (HPC) detectors 8. Currently, most MX beamlines are equipped with HPC detectors, or are scheduled to be.

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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Fast and accurate data collection for macromolecular crystallography using the JUNGFRAU detector

et al. 2018

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“…Single cylindrical Si(111) crystal with 1 mm segments and 25 cm focal radius dispersed the X-ray fluorescence with Bragg angles around 79 degrees 46,59 . Dispersed photons were registered on a per-shot basis by a 4.5 M JUNGFRAU detector 60,61 (75 × 75 µm 2 pixel size and 4 × 72 cm 2 active area) which allows operation at any Bragg angle in the 40-80 degrees range without any detector motion. JUNGFRAU is a charge integrating pixel hybrid detector designed specifically for XFELs.…”

Section: Methodsmentioning

confidence: 99%

Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays

et al. 2020

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OLED technology beyond small or expensive devices requires light-emitters, luminophores, based on earth-abundant elements. Understanding and experimental verification of charge transfer in luminophores are needed for this development. An organometallic multicore Cu complex comprising Cu-C and CuP bonds represents an underexplored type of luminophore. To investigate the charge transfer and structural rearrangements in this material, we apply complementary pump-probe X-ray techniques: absorption, emission, and scattering including pump-probe measurements at the X-ray free-electron laser SwissFEL. We find that the excitation leads to charge movement from C-and P-coordinated Cu sites and from the phosphorus atoms to phenyl rings; the Cu core slightly rearranges with 0.05 Å increase of the shortest Cu-Cu distance. The use of a Cu cluster bonded to the ligands through C and P atoms is an efficient way to keep structural rigidity of luminophores. Obtained data can be used to verify computational methods for the development of luminophores.

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“…The advent of time-resolved spectroscopy at synchrotron and x-ray free electron laser (XFEL) facilities has greatly expanded the need for this class of detectors. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Similar needs are also present in laser-plasma physics, where entire spectra for fluorescence, x-ray band thermal emission, or inelastic scattering must often be collected in few-pulse or even truly single-pulse experiments. [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] While there is an impressive effort aimed at either improvement of existing state-of-the-art technology or de novo development of new ideas for truly advanced highperformance detectors, [1][2][3][4][5][6][7][8][9][10][11][12][13]…”

Section: Introductionmentioning

confidence: 94%

A color x-ray camera for 2–6 keV using a mass produced back illuminated complementary metal oxide semiconductor sensor

Holden

Hoidn

Seidler

et al. 2018

Review of Scientific Instruments

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There are several reports in the scientific literature of the use of mass-produced charge coupled device or complementary metal oxide semiconductor (CMOS) sensors as x-ray detectors that combine high spatial resolution with significant energy resolution. Exploiting a relatively new especially favorable ambient-temperature back-illuminated CMOS sensor, we report the development of a spectroscopic x-ray camera having particularly impressive performance for 2-6 keV photons. This instrument has several beneficial characteristics for advanced x-ray spectroscopy studies in the laboratory, at synchrotron light sources, at x-ray free electron lasers, or when using pulsed x-ray sources such as for laser plasma physics research. These characteristics include fine position and energy resolution for individual photon events, high saturation rates, frame rates above 100 Hz, easy user maintenance for damaged sensors, and software for real-time processing. We evaluate this camera as an alternative to traditional energy-dispersive solid-state detectors, such as silicon drift detectors, and also illustrate its use in a very high resolution wavelength-dispersive x-ray fluorescence spectrometer (i.e., x-ray emission spectrometer) that has recently been reported elsewhere [W. M. Holden et al., Rev. Sci. Instrum. 88(7), 073904 (2017)].

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First full dynamic range calibration of the JUNGFRAU photon detector

Cited by 27 publications

References 5 publications

Fast and accurate data collection for macromolecular crystallography using the JUNGFRAU detector

Fast and accurate data collection for macromolecular crystallography using the JUNGFRAU detector

Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays

A color x-ray camera for 2–6 keV using a mass produced back illuminated complementary metal oxide semiconductor sensor

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