Digital Triggering Device and Generator of Starting Pulses for Ignition of Spark Gaps of REB Accelerator “TEMP”
To ensure the controllability and high noise immunity while measuring the characteristics of the accelerators of relativistic electron beams (REB) “TEMP”, and parameters of the processes in them, triggering devices with galvanic isolation of input and output circuits, allowing to set up the pulse de...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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V.N. Karazin Kharkiv National University Publishing
2019-11-01
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| Series: | East European Journal of Physics |
| Subjects: | |
| Online Access: | https://periodicals.karazin.ua/eejp/article/view/14725 |
| _version_ | 1819072001569980416 |
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| author | Aleksey B. Batrakov Eugeniy G. Glushko Andrey A. Zinchenko Yuriy F. Lonin Anatoliy G. Ponomarev Sergei I. Fedotov |
| author_facet | Aleksey B. Batrakov Eugeniy G. Glushko Andrey A. Zinchenko Yuriy F. Lonin Anatoliy G. Ponomarev Sergei I. Fedotov |
| author_sort | Aleksey B. Batrakov |
| collection | DOAJ |
| description | To ensure the controllability and high noise immunity while measuring the characteristics of the accelerators of relativistic electron beams (REB) “TEMP”, and parameters of the processes in them, triggering devices with galvanic isolation of input and output circuits, allowing to set up the pulse delays in the range from 1 μs to tens of milliseconds, have been developed. When they are used, the effect of loop currents, which flow in the common ground circuits and affect the operation of the measuring equipment, is eliminated. To synchronize the operation of the REB accelerator “TEMP” a triggering device was developed and assembled. It was assembled from blocks produced on the up-to-date elemental base and is a complete functional product. The triggering device comprises a trigger block and delay units. The trigger block is developed on the basis of an AND - NOT chip and a multivibrator. The delay units are built on single-shot vibrators K155AG1 and differ in the value of adjustable delays, which are determined by the external elements R and C, connected to the multivibrator. Unfortunately, in case the millisecond delays are set up, the pulse drop on the multivibrator is not stable. Therefore, a digital triggering device was developed. The digital triggering device is built on the basis of digital microcircuits and consists of the following blocks: binary-decimal counters, decoders, and one oscillator with quartz frequency stabilization, which is common to all four channels. It contains four identical channels with delay adjustment from one microsecond to one hundred milliseconds. Such a pattern of the circuit allows, if necessary, adding channels for starting other units. Pulse signals of the triggering device are fed to the ignitor unit of the spark-gaps. A pulse generator for igniting the spark-gaps of the REB accelerator “TEMP” has been developed. A generator, designed to control the spark gaps ignition in the High Voltage Pulse Generator (HVPG) and spark gaps ignition in the magnetic systems, which are used in switching systems of the capacitor banks with the energy of 60 ¸ 150 kJ, has been described. The generator provides voltage pulses with the amplitude of up to 20 kV, at the current in the short circuit mode of 5 A, the pulse duration of the first half wave of 12 μs, and the pulse repetition frequency (PRF) of not more than 10 Hz. |
| first_indexed | 2024-12-21T17:30:47Z |
| format | Article |
| id | doaj.art-d89fbea2b9284efbba334677616827e1 |
| institution | Directory Open Access Journal |
| issn | 2312-4334 2312-4539 |
| language | English |
| last_indexed | 2024-12-21T17:30:47Z |
| publishDate | 2019-11-01 |
| publisher | V.N. Karazin Kharkiv National University Publishing |
| record_format | Article |
| series | East European Journal of Physics |
| spelling | doaj.art-d89fbea2b9284efbba334677616827e12022-12-21T18:55:56ZengV.N. Karazin Kharkiv National University PublishingEast European Journal of Physics2312-43342312-45392019-11-014778110.26565/2312-4334-2019-4-0814725Digital Triggering Device and Generator of Starting Pulses for Ignition of Spark Gaps of REB Accelerator “TEMP”Aleksey B. Batrakov0Eugeniy G. Glushko1Andrey A. Zinchenko2Yuriy F. Lonin3Anatoliy G. Ponomarev4Sergei I. Fedotov5National Science Center "KhPTI", Kharkov, UkraineNational Science Center "KhPTI", Kharkov, UkraineNational Science Center "KhPTI", Kharkov, UkraineNational Science Center "KhPTI", Kharkov, UkraineNational Science Center "KhPTI", Kharkov, UkraineNational Science Center "KhPTI", Kharkov, UkraineTo ensure the controllability and high noise immunity while measuring the characteristics of the accelerators of relativistic electron beams (REB) “TEMP”, and parameters of the processes in them, triggering devices with galvanic isolation of input and output circuits, allowing to set up the pulse delays in the range from 1 μs to tens of milliseconds, have been developed. When they are used, the effect of loop currents, which flow in the common ground circuits and affect the operation of the measuring equipment, is eliminated. To synchronize the operation of the REB accelerator “TEMP” a triggering device was developed and assembled. It was assembled from blocks produced on the up-to-date elemental base and is a complete functional product. The triggering device comprises a trigger block and delay units. The trigger block is developed on the basis of an AND - NOT chip and a multivibrator. The delay units are built on single-shot vibrators K155AG1 and differ in the value of adjustable delays, which are determined by the external elements R and C, connected to the multivibrator. Unfortunately, in case the millisecond delays are set up, the pulse drop on the multivibrator is not stable. Therefore, a digital triggering device was developed. The digital triggering device is built on the basis of digital microcircuits and consists of the following blocks: binary-decimal counters, decoders, and one oscillator with quartz frequency stabilization, which is common to all four channels. It contains four identical channels with delay adjustment from one microsecond to one hundred milliseconds. Such a pattern of the circuit allows, if necessary, adding channels for starting other units. Pulse signals of the triggering device are fed to the ignitor unit of the spark-gaps. A pulse generator for igniting the spark-gaps of the REB accelerator “TEMP” has been developed. A generator, designed to control the spark gaps ignition in the High Voltage Pulse Generator (HVPG) and spark gaps ignition in the magnetic systems, which are used in switching systems of the capacitor banks with the energy of 60 ¸ 150 kJ, has been described. The generator provides voltage pulses with the amplitude of up to 20 kV, at the current in the short circuit mode of 5 A, the pulse duration of the first half wave of 12 μs, and the pulse repetition frequency (PRF) of not more than 10 Hz.https://periodicals.karazin.ua/eejp/article/view/14725acceleratorrelativistic electron beamspark-gapdigital triggering device |
| spellingShingle | Aleksey B. Batrakov Eugeniy G. Glushko Andrey A. Zinchenko Yuriy F. Lonin Anatoliy G. Ponomarev Sergei I. Fedotov Digital Triggering Device and Generator of Starting Pulses for Ignition of Spark Gaps of REB Accelerator “TEMP” East European Journal of Physics accelerator relativistic electron beam spark-gap digital triggering device |
| title | Digital Triggering Device and Generator of Starting Pulses for Ignition of Spark Gaps of REB Accelerator “TEMP” |
| title_full | Digital Triggering Device and Generator of Starting Pulses for Ignition of Spark Gaps of REB Accelerator “TEMP” |
| title_fullStr | Digital Triggering Device and Generator of Starting Pulses for Ignition of Spark Gaps of REB Accelerator “TEMP” |
| title_full_unstemmed | Digital Triggering Device and Generator of Starting Pulses for Ignition of Spark Gaps of REB Accelerator “TEMP” |
| title_short | Digital Triggering Device and Generator of Starting Pulses for Ignition of Spark Gaps of REB Accelerator “TEMP” |
| title_sort | digital triggering device and generator of starting pulses for ignition of spark gaps of reb accelerator temp |
| topic | accelerator relativistic electron beam spark-gap digital triggering device |
| url | https://periodicals.karazin.ua/eejp/article/view/14725 |
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