Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2
This paper presents the development and deployment of a multi-point fiber Bragg grating (FBG) sensor system for precise temperature monitoring along the vacuum chamber walls of dipole and Pinger magnets in Indus-2, a synchrotron radiation source. The challenging environment includes bremsstrahlung r...
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Elsevier
2025-05-01
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| Series: | Results in Optics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950125000331 |
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| author | J. Kumar S. Kumar R. Mahakud K.V.A.N.P.S. Kumar B. Sindal D.P. Yadav P.K. Agrawal M.K. Saxena O. Prakash |
| author_facet | J. Kumar S. Kumar R. Mahakud K.V.A.N.P.S. Kumar B. Sindal D.P. Yadav P.K. Agrawal M.K. Saxena O. Prakash |
| author_sort | J. Kumar |
| collection | DOAJ |
| description | This paper presents the development and deployment of a multi-point fiber Bragg grating (FBG) sensor system for precise temperature monitoring along the vacuum chamber walls of dipole and Pinger magnets in Indus-2, a synchrotron radiation source. The challenging environment includes bremsstrahlung radiation (20 Rad/h), strong magnetic fields (1.5 T), and high RF fields (∼0.8 MV/m at 505.812 MHz). The sensor system was created by inscribing multiple FBGs at distinct wavelengths on a single optical fiber using the second harmonic of a copper vapor laser (CVL). The FBG array was validated for operation in high-radiation and high-voltage (∼10 kV) conditions. It was installed to monitor temperature profiles during Indus-2 operation at 2.5 GeV, 200 mA, where chamber temperatures ranged from 18 °C to 40 °C. The significance of this observation lies in its potential application for the early detection of electron beam orbit mis-steering occurrences, thereby facilitating real-time temperature monitoring and the subsequent optimization of electron beam orbit alignment. Such proactive measures are crucial for ensuring the dependable and consistent operation of Indus-2. |
| format | Article |
| id | doaj-art-e9c26923015b4f8ea92089738b454df2 |
| institution | DOAJ |
| issn | 2666-9501 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
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| series | Results in Optics |
| spelling | doaj-art-e9c26923015b4f8ea92089738b454df22025-08-20T03:10:21ZengElsevierResults in Optics2666-95012025-05-011910080510.1016/j.rio.2025.100805Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2J. Kumar0S. Kumar1R. Mahakud2K.V.A.N.P.S. Kumar3B. Sindal4D.P. Yadav5P.K. Agrawal6M.K. Saxena7O. Prakash8Fibre Sensors & Optical Spectroscopy Section, Raja Ramanna Centre for Advanced Technology, Indore, India; Homi Bhabha National Institute, Mumbai, India; Corresponding author at: Fibre Sensors & Optical Spectroscopy Section, Raja Ramanna Centre for Advanced Technology, Indore, India.Fibre Sensors & Optical Spectroscopy Section, Raja Ramanna Centre for Advanced Technology, Indore, India; Homi Bhabha National Institute, Mumbai, IndiaFibre Sensors & Optical Spectroscopy Section, Raja Ramanna Centre for Advanced Technology, Indore, IndiaUltra High Vacuum Technology Section, Raja Ramanna Centre for Advanced Technology, Indore, IndiaUltra High Vacuum Technology Section, Raja Ramanna Centre for Advanced Technology, Indore, IndiaUltra High Vacuum Technology Section, Raja Ramanna Centre for Advanced Technology, Indore, IndiaLaser Power Supplies Division, Raja Ramanna Centre for Advanced Technology, Indore, IndiaFibre Sensors & Optical Spectroscopy Section, Raja Ramanna Centre for Advanced Technology, Indore, IndiaFibre Sensors & Optical Spectroscopy Section, Raja Ramanna Centre for Advanced Technology, Indore, India; Homi Bhabha National Institute, Mumbai, IndiaThis paper presents the development and deployment of a multi-point fiber Bragg grating (FBG) sensor system for precise temperature monitoring along the vacuum chamber walls of dipole and Pinger magnets in Indus-2, a synchrotron radiation source. The challenging environment includes bremsstrahlung radiation (20 Rad/h), strong magnetic fields (1.5 T), and high RF fields (∼0.8 MV/m at 505.812 MHz). The sensor system was created by inscribing multiple FBGs at distinct wavelengths on a single optical fiber using the second harmonic of a copper vapor laser (CVL). The FBG array was validated for operation in high-radiation and high-voltage (∼10 kV) conditions. It was installed to monitor temperature profiles during Indus-2 operation at 2.5 GeV, 200 mA, where chamber temperatures ranged from 18 °C to 40 °C. The significance of this observation lies in its potential application for the early detection of electron beam orbit mis-steering occurrences, thereby facilitating real-time temperature monitoring and the subsequent optimization of electron beam orbit alignment. Such proactive measures are crucial for ensuring the dependable and consistent operation of Indus-2.http://www.sciencedirect.com/science/article/pii/S2666950125000331Fiber Bragg grating (FBG)Temperature sensorIndus-2Dipole magnetPinger magnetCopper vapour laser |
| spellingShingle | J. Kumar S. Kumar R. Mahakud K.V.A.N.P.S. Kumar B. Sindal D.P. Yadav P.K. Agrawal M.K. Saxena O. Prakash Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2 Results in Optics Fiber Bragg grating (FBG) Temperature sensor Indus-2 Dipole magnet Pinger magnet Copper vapour laser |
| title | Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2 |
| title_full | Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2 |
| title_fullStr | Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2 |
| title_full_unstemmed | Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2 |
| title_short | Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2 |
| title_sort | studies and development of fbg based multi point temperature sensor for vacuum chambers of synchrotron radiation source indus 2 |
| topic | Fiber Bragg grating (FBG) Temperature sensor Indus-2 Dipole magnet Pinger magnet Copper vapour laser |
| url | http://www.sciencedirect.com/science/article/pii/S2666950125000331 |
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