SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlines
For many synchrotron radiation experiments, it is critical to perform continuous, real-time monitoring of the X-ray flux for normalization and stabilization purposes. Traditional transmission-mode monitors included metal mesh foils and ionization chambers, which suffered from low signal stability an...
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| Format: | Article |
| Language: | English |
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International Union of Crystallography
2025-01-01
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| Series: | Journal of Synchrotron Radiation |
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| Online Access: | https://journals.iucr.org/paper?S1600577524010646 |
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| author | Gabriele Trovato Marzio De Napoli Christian Gollwitzer Simone Finizio Michael Krumrey Francesco La Via Luca Lanzanò Giuliana Milluzzo Samuele Moscato Matthias Müller Francesco Romano Dario Ferreira Sanchez Massimo Camarda |
| author_facet | Gabriele Trovato Marzio De Napoli Christian Gollwitzer Simone Finizio Michael Krumrey Francesco La Via Luca Lanzanò Giuliana Milluzzo Samuele Moscato Matthias Müller Francesco Romano Dario Ferreira Sanchez Massimo Camarda |
| author_sort | Gabriele Trovato |
| collection | DOAJ |
| description | For many synchrotron radiation experiments, it is critical to perform continuous, real-time monitoring of the X-ray flux for normalization and stabilization purposes. Traditional transmission-mode monitors included metal mesh foils and ionization chambers, which suffered from low signal stability and size constraints. Solid-state detectors are now considered superior alternatives for many applications, offering appealing features like compactness and signal stability. However, silicon-based detectors suffer from poor radiation resistance, and diamond detectors are limited in scalability and are expensive to produce. Silicon carbide (SiC) has recently emerged as an alternative to both materials, offering a high-quality mature semiconductor with high thermal conductivity and radiation hardness. This study focuses on a systematic exploration of the SiC `free-standing membrane' devices developed by SenSiC GmbH. In particular, we performed in-depth sensor-response analysis with photon energies ranging from tender (1.75 keV) to hard (10 keV) X-rays at the Four-Crystal Monochromator beamline in the PTB laboratory at the synchrotron radiation facility BESSY II, studying uniformity of transmission and responsivity compared with the state-of-the-art beam monitors. Furthermore, we theoretically evaluated the expected signal in different regions of the sensors, also taking into account the effect of charge diffusion from the SiC substrate in the case of the not-carved region. |
| format | Article |
| id | doaj-art-08680f624d8c43b4bb6efa9426677df0 |
| institution | Kabale University |
| issn | 1600-5775 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Journal of Synchrotron Radiation |
| spelling | doaj-art-08680f624d8c43b4bb6efa9426677df02025-01-07T14:26:38ZengInternational Union of CrystallographyJournal of Synchrotron Radiation1600-57752025-01-0132111812410.1107/S1600577524010646ye5054SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlinesGabriele Trovato0Marzio De Napoli1Christian Gollwitzer2Simone Finizio3Michael Krumrey4Francesco La Via5Luca Lanzanò6Giuliana Milluzzo7Samuele Moscato8Matthias Müller9Francesco Romano10Dario Ferreira Sanchez11Massimo Camarda12STLab srl, Via Anapo 53, 95126 Catania, ItalyUniversità degli Studi di Catania, Dipartimento di Fisica e Astronomia `Ettore Majorana', Via Santa Sofia 64, 95123 Catania, ItalyPhysikalisch-Technische Bundesanstalt (PTB), Abbestraße 2-12, 10587 Berlin, GermanySwiss Light Source, Paul Scherrer Institut (PSI), Villigen, SwitzerlandPhysikalisch-Technische Bundesanstalt (PTB), Abbestraße 2-12, 10587 Berlin, GermanyIstituto per la Microelettronica e Microsistemi CNR-IMM, Sezione di Catania, Strada VIII Zona Industriale 5, 95121 Catania, ItalyUniversità degli Studi di Catania, Dipartimento di Fisica e Astronomia `Ettore Majorana', Via Santa Sofia 64, 95123 Catania, ItalyIstituto Nazionale di Fisica Nucleare – INFN, Sezione di Catania, Via S. Sofia 64, 95123 Catania, ItalySTLab srl, Via Anapo 53, 95126 Catania, ItalyPhysikalisch-Technische Bundesanstalt (PTB), Abbestraße 2-12, 10587 Berlin, GermanyIstituto Nazionale di Fisica Nucleare – INFN, Sezione di Catania, Via S. Sofia 64, 95123 Catania, ItalySwiss Light Source, Paul Scherrer Institut (PSI), Villigen, SwitzerlandUniversità degli Studi di Catania, Dipartimento di Fisica e Astronomia `Ettore Majorana', Via Santa Sofia 64, 95123 Catania, ItalyFor many synchrotron radiation experiments, it is critical to perform continuous, real-time monitoring of the X-ray flux for normalization and stabilization purposes. Traditional transmission-mode monitors included metal mesh foils and ionization chambers, which suffered from low signal stability and size constraints. Solid-state detectors are now considered superior alternatives for many applications, offering appealing features like compactness and signal stability. However, silicon-based detectors suffer from poor radiation resistance, and diamond detectors are limited in scalability and are expensive to produce. Silicon carbide (SiC) has recently emerged as an alternative to both materials, offering a high-quality mature semiconductor with high thermal conductivity and radiation hardness. This study focuses on a systematic exploration of the SiC `free-standing membrane' devices developed by SenSiC GmbH. In particular, we performed in-depth sensor-response analysis with photon energies ranging from tender (1.75 keV) to hard (10 keV) X-rays at the Four-Crystal Monochromator beamline in the PTB laboratory at the synchrotron radiation facility BESSY II, studying uniformity of transmission and responsivity compared with the state-of-the-art beam monitors. Furthermore, we theoretically evaluated the expected signal in different regions of the sensors, also taking into account the effect of charge diffusion from the SiC substrate in the case of the not-carved region.https://journals.iucr.org/paper?S1600577524010646silicon carbidediamondfree-standing membranesdiagnosticsx-ray intensity monitoringsemiconductor detectorsbeam transmittancecharge collection efficiencyresponsivity |
| spellingShingle | Gabriele Trovato Marzio De Napoli Christian Gollwitzer Simone Finizio Michael Krumrey Francesco La Via Luca Lanzanò Giuliana Milluzzo Samuele Moscato Matthias Müller Francesco Romano Dario Ferreira Sanchez Massimo Camarda SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlines Journal of Synchrotron Radiation silicon carbide diamond free-standing membranes diagnostics x-ray intensity monitoring semiconductor detectors beam transmittance charge collection efficiency responsivity |
| title | SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlines |
| title_full | SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlines |
| title_fullStr | SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlines |
| title_full_unstemmed | SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlines |
| title_short | SiC free-standing membrane for X-ray intensity monitoring in synchrotron radiation beamlines |
| title_sort | sic free standing membrane for x ray intensity monitoring in synchrotron radiation beamlines |
| topic | silicon carbide diamond free-standing membranes diagnostics x-ray intensity monitoring semiconductor detectors beam transmittance charge collection efficiency responsivity |
| url | https://journals.iucr.org/paper?S1600577524010646 |
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