Construction and Characterization of the Diode and Triode Electron Sources for EBM 300 keV/20 mA
The technical challenge in constructing the electron source (ES) lies in the joining of metal and ceramic tubes. Furthermore, there is a lack of available technical comparison data for the output performance between the diode and triode ES under the same experimental conditions. The research aim...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2024-01-01
|
| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/4406 |
| _version_ | 1797347151164997632 |
|---|---|
| author | Darsono Taufik Suprapto Saefurrochman Elin Nuraini Sutadi |
| author_facet | Darsono Taufik Suprapto Saefurrochman Elin Nuraini Sutadi |
| author_sort | Darsono |
| collection | DOAJ |
| description | The technical challenge in constructing the
electron source (ES) lies in the joining of metal and ceramic tubes.
Furthermore, there is a lack of available technical comparison data for the
output performance between the diode and triode ES under the same experimental
conditions. The research aim is to describe a simple technique for constructing
the diode and triode ES for an electron beam machine (EBM) of 300 keV/20 mA,
and to investigate their output characteristics. The method used is to make a
flange for mounting the Tungsten filament, Pierce electrodes, and heat shield.
Two or three electrodes of the NEC (National Electric Corporation) accelerator
tube are removed before the flange is united into the NEC tube, becoming the
ES. The ES‘s are investigated in terms of their electron beam profiles and beam
current output for the variation of the extraction electrode voltage as well as
the focusing electrode voltage. The experimental results show that for the
triode ES, the focusing electrode voltage greatly affects the shape of the
electron beam profile up to 3 kV. However, for the diode ES, the shape of the
electron beam profile is slightly affected by the extraction electrode voltage.
The beam current output increases rapidly with the increase of the extraction
electrode voltage up to 2.5 kV. Above this voltage, the beam current slowly increases, and it
tends to reach saturation. The diode ES
provides a higher electron beam current output than the triode ES output, but
the triode ES provides a better shape of the electron beam profile. The
constructed ES can provide the electron beam current of 40 mA at the filament
current of 18 A. |
| first_indexed | 2024-03-08T11:43:31Z |
| format | Article |
| id | doaj.art-7dde3f1211344d6ea5031a8175bc4136 |
| institution | Directory Open Access Journal |
| issn | 2086-9614 2087-2100 |
| language | English |
| last_indexed | 2024-03-08T11:43:31Z |
| publishDate | 2024-01-01 |
| publisher | Universitas Indonesia |
| record_format | Article |
| series | International Journal of Technology |
| spelling | doaj.art-7dde3f1211344d6ea5031a8175bc41362024-01-25T01:56:09ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002024-01-0115115416510.14716/ijtech.v15i1.44064406Construction and Characterization of the Diode and Triode Electron Sources for EBM 300 keV/20 mADarsono0Taufik1Suprapto2Saefurrochman3Elin Nuraini4Sutadi5Research Center for Accelerator Technology, Research Organization of Nuclear Technique (ORTN)-National Research and Innovation Agency (BRIN), Puspitek Serpong 15310, IndonesiaResearch Center for Accelerator Technology, Research Organization of Nuclear Technique (ORTN)-National Research and Innovation Agency (BRIN), Puspitek Serpong 15310, IndonesiaResearch Center for Accelerator Technology, Research Organization of Nuclear Technique (ORTN)-National Research and Innovation Agency (BRIN), Puspitek Serpong 15310, IndonesiaResearch Center for Accelerator Technology, Research Organization of Nuclear Technique (ORTN)-National Research and Innovation Agency (BRIN), Puspitek Serpong 15310, IndonesiaResearch Center for Accelerator Technology, Research Organization of Nuclear Technique (ORTN)-National Research and Innovation Agency (BRIN), Puspitek Serpong 15310, IndonesiaResearch Center for Accelerator Technology, Research Organization of Nuclear Technique (ORTN)-National Research and Innovation Agency (BRIN), Puspitek Serpong 15310, IndonesiaThe technical challenge in constructing the electron source (ES) lies in the joining of metal and ceramic tubes. Furthermore, there is a lack of available technical comparison data for the output performance between the diode and triode ES under the same experimental conditions. The research aim is to describe a simple technique for constructing the diode and triode ES for an electron beam machine (EBM) of 300 keV/20 mA, and to investigate their output characteristics. The method used is to make a flange for mounting the Tungsten filament, Pierce electrodes, and heat shield. Two or three electrodes of the NEC (National Electric Corporation) accelerator tube are removed before the flange is united into the NEC tube, becoming the ES. The ES‘s are investigated in terms of their electron beam profiles and beam current output for the variation of the extraction electrode voltage as well as the focusing electrode voltage. The experimental results show that for the triode ES, the focusing electrode voltage greatly affects the shape of the electron beam profile up to 3 kV. However, for the diode ES, the shape of the electron beam profile is slightly affected by the extraction electrode voltage. The beam current output increases rapidly with the increase of the extraction electrode voltage up to 2.5 kV. Above this voltage, the beam current slowly increases, and it tends to reach saturation. The diode ES provides a higher electron beam current output than the triode ES output, but the triode ES provides a better shape of the electron beam profile. The constructed ES can provide the electron beam current of 40 mA at the filament current of 18 A.https://ijtech.eng.ui.ac.id/article/view/4406beam profilebeam currentdiode and triodeelectron sourceextraction anodenec tube |
| spellingShingle | Darsono Taufik Suprapto Saefurrochman Elin Nuraini Sutadi Construction and Characterization of the Diode and Triode Electron Sources for EBM 300 keV/20 mA International Journal of Technology beam profile beam current diode and triode electron source extraction anode nec tube |
| title | Construction and Characterization of the Diode and Triode Electron Sources for EBM 300 keV/20 mA |
| title_full | Construction and Characterization of the Diode and Triode Electron Sources for EBM 300 keV/20 mA |
| title_fullStr | Construction and Characterization of the Diode and Triode Electron Sources for EBM 300 keV/20 mA |
| title_full_unstemmed | Construction and Characterization of the Diode and Triode Electron Sources for EBM 300 keV/20 mA |
| title_short | Construction and Characterization of the Diode and Triode Electron Sources for EBM 300 keV/20 mA |
| title_sort | construction and characterization of the diode and triode electron sources for ebm 300 kev 20 ma |
| topic | beam profile beam current diode and triode electron source extraction anode nec tube |
| url | https://ijtech.eng.ui.ac.id/article/view/4406 |
| work_keys_str_mv | AT darsono constructionandcharacterizationofthediodeandtriodeelectronsourcesforebm300kev20ma AT taufik constructionandcharacterizationofthediodeandtriodeelectronsourcesforebm300kev20ma AT suprapto constructionandcharacterizationofthediodeandtriodeelectronsourcesforebm300kev20ma AT saefurrochman constructionandcharacterizationofthediodeandtriodeelectronsourcesforebm300kev20ma AT elinnuraini constructionandcharacterizationofthediodeandtriodeelectronsourcesforebm300kev20ma AT sutadi constructionandcharacterizationofthediodeandtriodeelectronsourcesforebm300kev20ma |