The gamma-ray irradiation sensitivity and dosimetric information instability of RADFET dosimeter
The gamma-ray irradiation sensitivity to radiation dose range from 0.5 Gy to 5 Gy and post-irradiation annealing at room and elevated temperatures have been studied for p-channel metal-oxide-semiconductor field effect transistors (also known as radiation sensitive field effect transistors o...
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| Format: | Article |
| Language: | English |
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VINCA Institute of Nuclear Sciences
2013-01-01
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| Series: | Nuclear Technology and Radiation Protection |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2013/1451-39941304415P.pdf |
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| author | Pejović Milić M. |
| author_facet | Pejović Milić M. |
| author_sort | Pejović Milić M. |
| collection | DOAJ |
| description | The gamma-ray irradiation sensitivity to radiation dose range from 0.5 Gy to
5 Gy and post-irradiation annealing at room and elevated temperatures have
been studied for p-channel metal-oxide-semiconductor field effect transistors
(also known as radiation sensitive field effect transistors or pMOS
dosimeters) with gate oxide thicknesses of 400 nm and 1 mm. The gate biases
during the irradiation were 0 and 5 V and 5 V during the annealing. The
radiation and the post-irradiation sensitivity were followed by measuring the
threshold voltage shift, which was determined by using transfer
characteristics in saturation and reader circuit characteristics. The
dependence of threshold voltage shift DVT on absorbed radiation dose D and
annealing time was assessed. The results show that there is a linear
dependence between DVT and D during irradiation, so that the sensitivity can
be defined as DVT/D for the investigated dose interval. The annealing of
irradiated metal-oxide-semiconductor field effect transistors at different
temperatures ranging from room temperature up to 150°C was performed to
monitor the dosimetric information loss. The results indicated that the
dosimeters information is saved up to 600 hours at room temperature, whereas
the annealing at 150°C leads to the complete loss of dosimetric information
in the same period of time. The mechanisms responsible for the threshold
voltage shift during the irradiation and the later annealing have been
discussed also. [Projekat Ministarstva nauke Republike Srbije, br. 17007] |
| first_indexed | 2024-04-13T07:42:16Z |
| format | Article |
| id | doaj.art-4d4b7de9adef4312869641135c30399b |
| institution | Directory Open Access Journal |
| issn | 1451-3994 |
| language | English |
| last_indexed | 2024-04-13T07:42:16Z |
| publishDate | 2013-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-4d4b7de9adef4312869641135c30399b2022-12-22T02:55:49ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942013-01-0128441542110.2298/NTRP1304415P1451-39941304415PThe gamma-ray irradiation sensitivity and dosimetric information instability of RADFET dosimeterPejović Milić M.0Faculty of Electronic Engineering, NišThe gamma-ray irradiation sensitivity to radiation dose range from 0.5 Gy to 5 Gy and post-irradiation annealing at room and elevated temperatures have been studied for p-channel metal-oxide-semiconductor field effect transistors (also known as radiation sensitive field effect transistors or pMOS dosimeters) with gate oxide thicknesses of 400 nm and 1 mm. The gate biases during the irradiation were 0 and 5 V and 5 V during the annealing. The radiation and the post-irradiation sensitivity were followed by measuring the threshold voltage shift, which was determined by using transfer characteristics in saturation and reader circuit characteristics. The dependence of threshold voltage shift DVT on absorbed radiation dose D and annealing time was assessed. The results show that there is a linear dependence between DVT and D during irradiation, so that the sensitivity can be defined as DVT/D for the investigated dose interval. The annealing of irradiated metal-oxide-semiconductor field effect transistors at different temperatures ranging from room temperature up to 150°C was performed to monitor the dosimetric information loss. The results indicated that the dosimeters information is saved up to 600 hours at room temperature, whereas the annealing at 150°C leads to the complete loss of dosimetric information in the same period of time. The mechanisms responsible for the threshold voltage shift during the irradiation and the later annealing have been discussed also. [Projekat Ministarstva nauke Republike Srbije, br. 17007]http://www.doiserbia.nb.rs/img/doi/1451-3994/2013/1451-39941304415P.pdfRADFETabsorbed radiation dosegamma irradiationthreshold voltageannealing |
| spellingShingle | Pejović Milić M. The gamma-ray irradiation sensitivity and dosimetric information instability of RADFET dosimeter Nuclear Technology and Radiation Protection RADFET absorbed radiation dose gamma irradiation threshold voltage annealing |
| title | The gamma-ray irradiation sensitivity and dosimetric information instability of RADFET dosimeter |
| title_full | The gamma-ray irradiation sensitivity and dosimetric information instability of RADFET dosimeter |
| title_fullStr | The gamma-ray irradiation sensitivity and dosimetric information instability of RADFET dosimeter |
| title_full_unstemmed | The gamma-ray irradiation sensitivity and dosimetric information instability of RADFET dosimeter |
| title_short | The gamma-ray irradiation sensitivity and dosimetric information instability of RADFET dosimeter |
| title_sort | gamma ray irradiation sensitivity and dosimetric information instability of radfet dosimeter |
| topic | RADFET absorbed radiation dose gamma irradiation threshold voltage annealing |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2013/1451-39941304415P.pdf |
| work_keys_str_mv | AT pejovicmilicm thegammarayirradiationsensitivityanddosimetricinformationinstabilityofradfetdosimeter AT pejovicmilicm gammarayirradiationsensitivityanddosimetricinformationinstabilityofradfetdosimeter |