Development of an Integrating Sphere-Based Wide-Range Light Source System for the Linearity Evaluation of a Photodetector Used in Radiation Detection and Bioanalysis Instruments
We developed a compact wide-range light source system for evaluating the linearity of photomultiplier tube (PMT) output. This system utilizes two integrating spheres equipped with a continuously variable slit and output aperture to modulate a stabilized light-emitting diode light source, producing a...
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MDPI AG
2024-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/23/7544 |
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| author | Tetsuro Matsumoto Akihiko Masuda Minoru Tanabe Seiya Manabe Hideki Harano Kazuki Niwa |
| author_facet | Tetsuro Matsumoto Akihiko Masuda Minoru Tanabe Seiya Manabe Hideki Harano Kazuki Niwa |
| author_sort | Tetsuro Matsumoto |
| collection | DOAJ |
| description | We developed a compact wide-range light source system for evaluating the linearity of photomultiplier tube (PMT) output. This system utilizes two integrating spheres equipped with a continuously variable slit and output aperture to modulate a stabilized light-emitting diode light source, producing an output light range as wide as seven orders of magnitude. To verify the wide linearity range of the integrating sphere system, three silicon photodiodes coupled with electric current readers monitored the light intensity and simultaneously confirmed each other’s linearity. Using this system, we evaluated the linearity of the PMT used in a neutron detector we are currently developing and found it to have a linear range of more than four orders of magnitude. Non-linearity characteristics were also successfully measured in detail at a higher output range. Neutron detector operation requires both calibration of the detection efficiency and evaluation of the linearity between the neutron dose and its output. These results indicate that this system is a simple and useful method to evaluate the linearity of photodetectors used in radiation detectors and other applications. |
| format | Article |
| id | doaj-art-79860485dc8c43ffa9896d1a5d4d48c8 |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-79860485dc8c43ffa9896d1a5d4d48c82024-12-13T16:31:53ZengMDPI AGSensors1424-82202024-11-012423754410.3390/s24237544Development of an Integrating Sphere-Based Wide-Range Light Source System for the Linearity Evaluation of a Photodetector Used in Radiation Detection and Bioanalysis InstrumentsTetsuro Matsumoto0Akihiko Masuda1Minoru Tanabe2Seiya Manabe3Hideki Harano4Kazuki Niwa5National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, AIST Central, 1-1-1 Umezono, Tsukuba 305-8568, JapanNational Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, AIST Central, 1-1-1 Umezono, Tsukuba 305-8568, JapanNational Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, AIST Central, 1-1-1 Umezono, Tsukuba 305-8568, JapanNational Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, AIST Central, 1-1-1 Umezono, Tsukuba 305-8568, JapanNational Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, AIST Central, 1-1-1 Umezono, Tsukuba 305-8568, JapanNational Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, AIST Central, 1-1-1 Umezono, Tsukuba 305-8568, JapanWe developed a compact wide-range light source system for evaluating the linearity of photomultiplier tube (PMT) output. This system utilizes two integrating spheres equipped with a continuously variable slit and output aperture to modulate a stabilized light-emitting diode light source, producing an output light range as wide as seven orders of magnitude. To verify the wide linearity range of the integrating sphere system, three silicon photodiodes coupled with electric current readers monitored the light intensity and simultaneously confirmed each other’s linearity. Using this system, we evaluated the linearity of the PMT used in a neutron detector we are currently developing and found it to have a linear range of more than four orders of magnitude. Non-linearity characteristics were also successfully measured in detail at a higher output range. Neutron detector operation requires both calibration of the detection efficiency and evaluation of the linearity between the neutron dose and its output. These results indicate that this system is a simple and useful method to evaluate the linearity of photodetectors used in radiation detectors and other applications.https://www.mdpi.com/1424-8220/24/23/7544BNCTphotodetectorlinearityintegrating sphereslight source |
| spellingShingle | Tetsuro Matsumoto Akihiko Masuda Minoru Tanabe Seiya Manabe Hideki Harano Kazuki Niwa Development of an Integrating Sphere-Based Wide-Range Light Source System for the Linearity Evaluation of a Photodetector Used in Radiation Detection and Bioanalysis Instruments Sensors BNCT photodetector linearity integrating spheres light source |
| title | Development of an Integrating Sphere-Based Wide-Range Light Source System for the Linearity Evaluation of a Photodetector Used in Radiation Detection and Bioanalysis Instruments |
| title_full | Development of an Integrating Sphere-Based Wide-Range Light Source System for the Linearity Evaluation of a Photodetector Used in Radiation Detection and Bioanalysis Instruments |
| title_fullStr | Development of an Integrating Sphere-Based Wide-Range Light Source System for the Linearity Evaluation of a Photodetector Used in Radiation Detection and Bioanalysis Instruments |
| title_full_unstemmed | Development of an Integrating Sphere-Based Wide-Range Light Source System for the Linearity Evaluation of a Photodetector Used in Radiation Detection and Bioanalysis Instruments |
| title_short | Development of an Integrating Sphere-Based Wide-Range Light Source System for the Linearity Evaluation of a Photodetector Used in Radiation Detection and Bioanalysis Instruments |
| title_sort | development of an integrating sphere based wide range light source system for the linearity evaluation of a photodetector used in radiation detection and bioanalysis instruments |
| topic | BNCT photodetector linearity integrating spheres light source |
| url | https://www.mdpi.com/1424-8220/24/23/7544 |
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