1
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Tinti G, Marchetto H, Vaz CAF, Kleibert A, Andrä M, Barten R, Bergamaschi A, Brückner M, Cartier S, Dinapoli R, Franz T, Fröjdh E, Greiffenberg D, Lopez-Cuenca C, Mezza D, Mozzanica A, Nolting F, Ramilli M, Redford S, Ruat M, Ruder C, Schädler L, Schmidt T, Schmitt B, Schütz F, Shi X, Thattil D, Vetter S, Zhang J. The EIGER detector for low-energy electron microscopy and photoemission electron microscopy. J Synchrotron Radiat 2017; 24:963-974. [PMID: 28862618 DOI: 10.1107/s1600577517009109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 06/18/2017] [Indexed: 06/07/2023]
Abstract
EIGER is a single-photon-counting hybrid pixel detector developed at the Paul Scherrer Institut, Switzerland. It is designed for applications at synchrotron light sources with photon energies above 5 keV. Features of EIGER include a small pixel size (75 µm × 75 µm), a high frame rate (up to 23 kHz), a small dead-time between frames (down to 3 µs) and a dynamic range up to 32-bit. In this article, the use of EIGER as a detector for electrons in low-energy electron microscopy (LEEM) and photoemission electron microscopy (PEEM) is reported. It is demonstrated that, with only a minimal modification to the sensitive part of the detector, EIGER is able to detect electrons emitted or reflected by the sample and accelerated to 8-20 keV. The imaging capabilities are shown to be superior to the standard microchannel plate detector for these types of applications. This is due to the much higher signal-to-noise ratio, better homogeneity and improved dynamic range. In addition, the operation of the EIGER detector is not affected by radiation damage from electrons in the present energy range and guarantees more stable performance over time. To benchmark the detector capabilities, LEEM experiments are performed on selected surfaces and the magnetic and electronic properties of individual iron nanoparticles with sizes ranging from 8 to 22 nm are detected using the PEEM endstation at the Surface/Interface Microscopy (SIM) beamline of the Swiss Light Source.
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Affiliation(s)
- G Tinti
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - H Marchetto
- ELMITEC Elektronenmikroskopie GmbH, D-38678 Clausthal-Zellerfeld, Germany
| | - C A F Vaz
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A Kleibert
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Andrä
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - R Barten
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A Bergamaschi
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Brückner
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - S Cartier
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - R Dinapoli
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - T Franz
- ELMITEC Elektronenmikroskopie GmbH, D-38678 Clausthal-Zellerfeld, Germany
| | - E Fröjdh
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - D Greiffenberg
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - C Lopez-Cuenca
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - D Mezza
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A Mozzanica
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - F Nolting
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Ramilli
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - S Redford
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Ruat
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Ch Ruder
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - L Schädler
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Th Schmidt
- Fritz-Haber-Institute of the Max-Planck-Society, Department of Chemical Physics, D-14195 Berlin, Germany
| | - B Schmitt
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - F Schütz
- ELMITEC Elektronenmikroskopie GmbH, D-38678 Clausthal-Zellerfeld, Germany
| | - X Shi
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - D Thattil
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - S Vetter
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - J Zhang
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
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2
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Tinti G, Marchetto H, Vaz CAF, Kleibert A, Andrä M, Barten R, Bergamaschi A, Brückner M, Cartier S, Dinapoli R, Franz T, Fröjdh E, Greiffenberg D, Lopez-Cuenca C, Mezza D, Mozzanica A, Nolting F, Ramilli M, Redford S, Ruat M, Ruder C, Schädler L, Schmidt T, Schmitt B, Schütz F, Shi X, Thattil D, Vetter S, Zhang J. The EIGER detector for low-energy electron microscopy and photoemission electron microscopy. J Synchrotron Radiat 2017. [PMID: 28862618 DOI: 10.1088/1748-0221/13/01/c01027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
EIGER is a single-photon-counting hybrid pixel detector developed at the Paul Scherrer Institut, Switzerland. It is designed for applications at synchrotron light sources with photon energies above 5 keV. Features of EIGER include a small pixel size (75 µm × 75 µm), a high frame rate (up to 23 kHz), a small dead-time between frames (down to 3 µs) and a dynamic range up to 32-bit. In this article, the use of EIGER as a detector for electrons in low-energy electron microscopy (LEEM) and photoemission electron microscopy (PEEM) is reported. It is demonstrated that, with only a minimal modification to the sensitive part of the detector, EIGER is able to detect electrons emitted or reflected by the sample and accelerated to 8-20 keV. The imaging capabilities are shown to be superior to the standard microchannel plate detector for these types of applications. This is due to the much higher signal-to-noise ratio, better homogeneity and improved dynamic range. In addition, the operation of the EIGER detector is not affected by radiation damage from electrons in the present energy range and guarantees more stable performance over time. To benchmark the detector capabilities, LEEM experiments are performed on selected surfaces and the magnetic and electronic properties of individual iron nanoparticles with sizes ranging from 8 to 22 nm are detected using the PEEM endstation at the Surface/Interface Microscopy (SIM) beamline of the Swiss Light Source.
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Affiliation(s)
- G Tinti
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - H Marchetto
- ELMITEC Elektronenmikroskopie GmbH, D-38678 Clausthal-Zellerfeld, Germany
| | - C A F Vaz
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A Kleibert
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Andrä
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - R Barten
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A Bergamaschi
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Brückner
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - S Cartier
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - R Dinapoli
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - T Franz
- ELMITEC Elektronenmikroskopie GmbH, D-38678 Clausthal-Zellerfeld, Germany
| | - E Fröjdh
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - D Greiffenberg
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - C Lopez-Cuenca
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - D Mezza
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A Mozzanica
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - F Nolting
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Ramilli
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - S Redford
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Ruat
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Ch Ruder
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - L Schädler
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Th Schmidt
- Fritz-Haber-Institute of the Max-Planck-Society, Department of Chemical Physics, D-14195 Berlin, Germany
| | - B Schmitt
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - F Schütz
- ELMITEC Elektronenmikroskopie GmbH, D-38678 Clausthal-Zellerfeld, Germany
| | - X Shi
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - D Thattil
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - S Vetter
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - J Zhang
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
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3
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Jungmann-Smith JH, Bergamaschi A, Brückner M, Cartier S, Dinapoli R, Greiffenberg D, Huthwelker T, Maliakal D, Mayilyan D, Medjoubi K, Mezza D, Mozzanica A, Ramilli M, Ruder C, Schädler L, Schmitt B, Shi X, Tinti G. Towards hybrid pixel detectors for energy-dispersive or soft X-ray photon science. J Synchrotron Radiat 2016; 23:385-94. [PMID: 26917124 PMCID: PMC5297903 DOI: 10.1107/s1600577515023541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 12/08/2015] [Indexed: 05/19/2023]
Abstract
JUNGFRAU (adJUstiNg Gain detector FoR the Aramis User station) is a two-dimensional hybrid pixel detector for photon science applications at free-electron lasers and synchrotron light sources. The JUNGFRAU 0.4 prototype presented here is specifically geared towards low-noise performance and hence soft X-ray detection. The design, geometry and readout architecture of JUNGFRAU 0.4 correspond to those of other JUNGFRAU pixel detectors, which are charge-integrating detectors with 75 µm × 75 µm pixels. Main characteristics of JUNGFRAU 0.4 are its fixed gain and r.m.s. noise of as low as 27 e(-) electronic noise charge (<100 eV) with no active cooling. The 48 × 48 pixels JUNGFRAU 0.4 prototype can be combined with a charge-sharing suppression mask directly placed on the sensor, which keeps photons from hitting the charge-sharing regions of the pixels. The mask consists of a 150 µm tungsten sheet, in which 28 µm-diameter holes are laser-drilled. The mask is aligned with the pixels. The noise and gain characterization, and single-photon detection as low as 1.2 keV are shown. The performance of JUNGFRAU 0.4 without the mask and also in the charge-sharing suppression configuration (with the mask, with a `software mask' or a `cluster finding' algorithm) is tested, compared and evaluated, in particular with respect to the removal of the charge-sharing contribution in the spectra, the detection efficiency and the photon rate capability. Energy-dispersive and imaging experiments with fluorescence X-ray irradiation from an X-ray tube and a synchrotron light source are successfully demonstrated with an r.m.s. energy resolution of 20% (no mask) and 14% (with the mask) at 1.2 keV and of 5% at 13.3 keV. The performance evaluation of the JUNGFRAU 0.4 prototype suggests that this detection system could be the starting point for a future detector development effort for either applications in the soft X-ray energy regime or for an energy-dispersive detection system.
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Affiliation(s)
| | | | - M. Brückner
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - S. Cartier
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
- Institute for Biomedical Engineering, University and ETHZ, 8092 Zürich, Switzerland
| | - R. Dinapoli
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | | | - T. Huthwelker
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - D. Maliakal
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - D. Mayilyan
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - K. Medjoubi
- Synchrotron Soleil, L’Orme des Merisiers, BP 48, Saint-Aubin, 91192 GIF-sur-Yvette Cedex, France
| | - D. Mezza
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - A. Mozzanica
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - M. Ramilli
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Ch. Ruder
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - L. Schädler
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - B. Schmitt
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - X. Shi
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - G. Tinti
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
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4
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Jungmann-Smith JH, Bergamaschi A, Brückner M, Cartier S, Dinapoli R, Greiffenberg D, Jaggi A, Maliakal D, Mayilyan D, Medjoubi K, Mezza D, Mozzanica A, Ramilli M, Ruder C, Schädler L, Schmitt B, Shi X, Tinti G. Radiation hardness assessment of the charge-integrating hybrid pixel detector JUNGFRAU 1.0 for photon science. Rev Sci Instrum 2015; 86:123110. [PMID: 26724009 DOI: 10.1063/1.4938166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
JUNGFRAU (adJUstiNg Gain detector FoR the Aramis User station) is a two-dimensional hybrid pixel detector for photon science applications in free electron lasers, particularly SwissFEL, and synchrotron light sources. JUNGFRAU is an automatic gain switching, charge-integrating detector which covers a dynamic range of more than 10(4) photons of an energy of 12 keV with a good linearity, uniformity of response, and spatial resolving power. The JUNGFRAU 1.0 application-specific integrated circuit (ASIC) features a 256 × 256 pixel matrix of 75 × 75 μm(2) pixels and is bump-bonded to a 320 μm thick Si sensor. Modules of 2 × 4 chips cover an area of about 4 × 8 cm(2). Readout rates in excess of 2 kHz enable linear count rate capabilities of 20 MHz (at 12 keV) and 50 MHz (at 5 keV). The tolerance of JUNGFRAU to radiation is a key issue to guarantee several years of operation at free electron lasers and synchrotrons. The radiation hardness of JUNGFRAU 1.0 is tested with synchrotron radiation up to 10 MGy of delivered dose. The effect of radiation-induced changes on the noise, baseline, gain, and gain switching is evaluated post-irradiation for both the ASIC and the hybridized assembly. The bare JUNGFRAU 1.0 chip can withstand doses as high as 10 MGy with minor changes to its noise and a reduction in the preamplifier gain. The hybridized assembly, in particular the sensor, is affected by the photon irradiation which mainly shows as an increase in the leakage current. Self-healing of the system is investigated during a period of 11 weeks after the delivery of the radiation dose. Annealing radiation-induced changes by bake-out at 100 °C is investigated. It is concluded that the JUNGFRAU 1.0 pixel is sufficiently radiation-hard for its envisioned applications at SwissFEL and synchrotron beam lines.
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Affiliation(s)
| | - A Bergamaschi
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - M Brückner
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - S Cartier
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - R Dinapoli
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | | | - A Jaggi
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - D Maliakal
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - D Mayilyan
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - K Medjoubi
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin-BP 48, 91192 GIF-sur-Yvette Cedex, France
| | - D Mezza
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - A Mozzanica
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - M Ramilli
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Ch Ruder
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - L Schädler
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - B Schmitt
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - X Shi
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - G Tinti
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
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5
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Schubert A, Bergamaschi A, David C, Dinapoli R, Elbracht-Leong S, Gorelick S, Graafsma H, Henrich B, Johnson I, Lohmann M, Mozzanica A, Radicci V, Rassool R, Schädler L, Schmitt B, Shi X, Sobott B. Micrometre resolution of a charge integrating microstrip detector with single photon sensitivity. J Synchrotron Radiat 2012; 19:359-65. [PMID: 22514170 PMCID: PMC3408957 DOI: 10.1107/s090904951200235x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 01/18/2012] [Indexed: 05/09/2023]
Abstract
A synchrotron beam has been used to test the spatial resolution of a single-photon-resolving integrating readout-chip coupled to a 320 µm-thick silicon strip sensor with a dedicated readout system. Charge interpolation methods have yielded a spatial resolution of σ(x) ≃ 1.8 µm for a 20 µm-pitch strip.
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Affiliation(s)
- A Schubert
- School of Physics, The University of Melbourne, Melbourne, Victoria 3010, Australia.
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