Filament X-ray Tube Current Control Method Using Indirect Filament Temperature Estimation
The recent increase in ailments has increased the demand for diagnosis and surgery based on X-rays. An X-ray system using a filament-type tube heats the filament for operation, and the electrons emitted by the thermal energy during this process produce X-rays. Conventionally, current control-based m...
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MDPI AG
2021
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oai:doaj.org-article:50c1df003b0244d2bf5621f1676a742d2021-11-25T16:32:13ZFilament X-ray Tube Current Control Method Using Indirect Filament Temperature Estimation10.3390/app1122105882076-3417https://doaj.org/article/50c1df003b0244d2bf5621f1676a742d2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10588https://doaj.org/toc/2076-3417The recent increase in ailments has increased the demand for diagnosis and surgery based on X-rays. An X-ray system using a filament-type tube heats the filament for operation, and the electrons emitted by the thermal energy during this process produce X-rays. Conventionally, current control-based methods are used to regulate heating. However, these methods do not control the temperature of the filament, resulting in lower or higher output than the desired dose rate. Therefore, we propose a filament temperature control method that enables constant temperature control, which cannot be achieved using the existing heating method for X-ray systems with filament tubes. Additionally, we developed an indirect temperature estimation algorithm for the tungsten filament to incorporate the proposed method. To validate the tube current control through temperature control, we performed experiments to compare the existing current-controlled heating and temperature control methods in terms of the filament temperature. As the tube current is proportional to the dose rate, it was measured through a comparative analysis of the change in the output of dose rate over time. The obtained results validate that the proposed method can maintain both the filament temperature and tube current at the desired level.Je-Jin JangHe-Lin ZhuHyung-Soo MokMDPI AGarticletemperature estimationcurrent controlfilament X-ray tubeclosed-loop temperature controlX-ray systemTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10588, p 10588 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
temperature estimation current control filament X-ray tube closed-loop temperature control X-ray system Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
| spellingShingle |
temperature estimation current control filament X-ray tube closed-loop temperature control X-ray system Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Je-Jin Jang He-Lin Zhu Hyung-Soo Mok Filament X-ray Tube Current Control Method Using Indirect Filament Temperature Estimation |
| description |
The recent increase in ailments has increased the demand for diagnosis and surgery based on X-rays. An X-ray system using a filament-type tube heats the filament for operation, and the electrons emitted by the thermal energy during this process produce X-rays. Conventionally, current control-based methods are used to regulate heating. However, these methods do not control the temperature of the filament, resulting in lower or higher output than the desired dose rate. Therefore, we propose a filament temperature control method that enables constant temperature control, which cannot be achieved using the existing heating method for X-ray systems with filament tubes. Additionally, we developed an indirect temperature estimation algorithm for the tungsten filament to incorporate the proposed method. To validate the tube current control through temperature control, we performed experiments to compare the existing current-controlled heating and temperature control methods in terms of the filament temperature. As the tube current is proportional to the dose rate, it was measured through a comparative analysis of the change in the output of dose rate over time. The obtained results validate that the proposed method can maintain both the filament temperature and tube current at the desired level. |
| format |
article |
| author |
Je-Jin Jang He-Lin Zhu Hyung-Soo Mok |
| author_facet |
Je-Jin Jang He-Lin Zhu Hyung-Soo Mok |
| author_sort |
Je-Jin Jang |
| title |
Filament X-ray Tube Current Control Method Using Indirect Filament Temperature Estimation |
| title_short |
Filament X-ray Tube Current Control Method Using Indirect Filament Temperature Estimation |
| title_full |
Filament X-ray Tube Current Control Method Using Indirect Filament Temperature Estimation |
| title_fullStr |
Filament X-ray Tube Current Control Method Using Indirect Filament Temperature Estimation |
| title_full_unstemmed |
Filament X-ray Tube Current Control Method Using Indirect Filament Temperature Estimation |
| title_sort |
filament x-ray tube current control method using indirect filament temperature estimation |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/50c1df003b0244d2bf5621f1676a742d |
| work_keys_str_mv |
AT jejinjang filamentxraytubecurrentcontrolmethodusingindirectfilamenttemperatureestimation AT helinzhu filamentxraytubecurrentcontrolmethodusingindirectfilamenttemperatureestimation AT hyungsoomok filamentxraytubecurrentcontrolmethodusingindirectfilamenttemperatureestimation |
| _version_ |
1718413134807433216 |