Characterization of a 100 nm RADFET as a proton beam detector
The RADFET VT06 developed by Varadis (Cork, Ireland), which is aimed at high-dose applications, mainly for spacecraft missions, has been characterized by low- and high-energy proton beams at two different facilities, the Accelerator National Centre (Sevilla, Spain) and the Paul Scherrer Institute (P...
| Authors: | ; ; ; ; ; ; ; ; |
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| Format: | Article |
| Status: | Published version |
| Publication date: | 2025 |
| Country: | España |
| Institution: | Universidad de Sevilla (US) |
| Repository: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:dnet:idus________::3d4ebd26ee63e8283945f76d65fb6d71 |
| Online Access: | https://hdl.handle.net/11441/186855 https://doi.org/10.3390/s26010202 |
| Access Level: | Open access |
| Keyword: | Radiation detector RADFET Unbiased Proton beams Dosimetry |
| _version_ | 1878731946806214656 |
|---|---|
| author | Moreno Pérez, Juan Antonio |
| author2 | Ruiz García, Isidoro Duane, Russell Martín Holgado, Pedro Morvaj, Ljiljana Vasovic, Nikola Hajdas, Wojtek Morilla García, Yolanda Carvajal Rodríguez, Miguel Ángel |
| author2_role | author author author author author author author author |
| author_browse | Carvajal Rodríguez, Miguel Ángel Duane, Russell Hajdas, Wojtek Martín Holgado, Pedro Moreno Pérez, Juan Antonio Morilla García, Yolanda Morvaj, Ljiljana Ruiz García, Isidoro Vasovic, Nikola |
| author_facet | Moreno Pérez, Juan Antonio Ruiz García, Isidoro Duane, Russell Martín Holgado, Pedro Morvaj, Ljiljana Vasovic, Nikola Hajdas, Wojtek Morilla García, Yolanda Carvajal Rodríguez, Miguel Ángel |
| author_role | author |
| collection | idUS. Depósito de Investigación de la Universidad de Sevilla |
| description | The RADFET VT06 developed by Varadis (Cork, Ireland), which is aimed at high-dose applications, mainly for spacecraft missions, has been characterized by low- and high-energy proton beams at two different facilities, the Accelerator National Centre (Sevilla, Spain) and the Paul Scherrer Institute (PSI) located in Villigen (Switzerland), using a reader unit system developed by the University of Granada (Spain). The devices have been characterized with proton energies of 1, 2, 3, 150, and 230 MeV, with accumulated doses from 130 to 512 Gy, where the RADFET was unbiased during the irradiation while the source voltage was measured before and after irradiation to monitor the radiation dose. Excellent linearity has been obtained with a minimum correlation factor R2 of 0.996, with a sensitivity that can vary from (0.691 ± 0.007) mV/Gy for 1 MeV to (1.143 ± 0.023) mV/Gy for 230 MeV without any build-up layer. An excellent stability was found in the studied cases, with dispersion being lower than 4% after a dose accumulation higher than 500 and 200 Gy for protons of 1 and 3 MeV, respectively. The detectors demonstrated linear responses, very low sensitivity dispersion per set of samples, and excellent stability after irradiation. This shows that, with an appropriate readout system, the RADFET can become an excellent system for high-dose proton beams. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_39d5142f2f08fea0c58de514bdb7531c |
| institution | Universidad de Sevilla (US) |
| instname_str | Universidad de Sevilla (US) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:dnet:idus________::3d4ebd26ee63e8283945f76d65fb6d71 |
| publishDate | 2025 |
| publishDateSort | 2025 |
| publisher | MDPI |
| publisherStr | MDPI |
| reponame_str | idUS. Depósito de Investigación de la Universidad de Sevilla |
| spelling | Characterization of a 100 nm RADFET as a proton beam detector Moreno Pérez, Juan Antonio Ruiz García, Isidoro Duane, Russell Martín Holgado, Pedro Morvaj, Ljiljana Vasovic, Nikola Hajdas, Wojtek Morilla García, Yolanda Carvajal Rodríguez, Miguel Ángel Radiation detector RADFET Unbiased Proton beams Dosimetry The RADFET VT06 developed by Varadis (Cork, Ireland), which is aimed at high-dose applications, mainly for spacecraft missions, has been characterized by low- and high-energy proton beams at two different facilities, the Accelerator National Centre (Sevilla, Spain) and the Paul Scherrer Institute (PSI) located in Villigen (Switzerland), using a reader unit system developed by the University of Granada (Spain). The devices have been characterized with proton energies of 1, 2, 3, 150, and 230 MeV, with accumulated doses from 130 to 512 Gy, where the RADFET was unbiased during the irradiation while the source voltage was measured before and after irradiation to monitor the radiation dose. Excellent linearity has been obtained with a minimum correlation factor R2 of 0.996, with a sensitivity that can vary from (0.691 ± 0.007) mV/Gy for 1 MeV to (1.143 ± 0.023) mV/Gy for 230 MeV without any build-up layer. An excellent stability was found in the studied cases, with dispersion being lower than 4% after a dose accumulation higher than 500 and 200 Gy for protons of 1 and 3 MeV, respectively. The detectors demonstrated linear responses, very low sensitivity dispersion per set of samples, and excellent stability after irradiation. This shows that, with an appropriate readout system, the RADFET can become an excellent system for high-dose proton beams. MDPI https://hdl.handle.net/11441/186855 https://doi.org/10.3390/s26010202 |
| spellingShingle | Characterization of a 100 nm RADFET as a proton beam detector Moreno Pérez, Juan Antonio Radiation detector RADFET Unbiased Proton beams Dosimetry |
| status_str | publishedVersion |
| title | Characterization of a 100 nm RADFET as a proton beam detector |
| title_full | Characterization of a 100 nm RADFET as a proton beam detector |
| title_fullStr | Characterization of a 100 nm RADFET as a proton beam detector |
| title_full_unstemmed | Characterization of a 100 nm RADFET as a proton beam detector |
| title_short | Characterization of a 100 nm RADFET as a proton beam detector |
| title_sort | Characterization of a 100 nm RADFET as a proton beam detector |
| topic | Radiation detector RADFET Unbiased Proton beams Dosimetry |
| topic_facet | Radiation detector RADFET Unbiased Proton beams Dosimetry |
| url | https://hdl.handle.net/11441/186855 https://doi.org/10.3390/s26010202 |