Experimental demonstration of a single capillary, water-activated cathode for a sub-microsecond electron accelerator

Egorov, I.; Poloskov, A.; Serebrennikov, Maksim; Ремнев, Г. Е.

doi:10.1016/j.nima.2019.162459

Cited by 4 publications

(4 citation statements)

References 21 publications

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“…Further studies were carried out using an accelerator based on a pulse transformer. The results without water supply to the cathode duplicate the results obtained earlier when testing the prototype [10], when the waveforms of the current and voltage sensors illustrate the operation of a generator based on a pulse transformer for a capacitive load of a vacuum electron diode. The diode current illustrated charge and discharge process of the constructive capacitance of the diode assembly.…”

Section: Transformer Based Acceleratorsupporting

confidence: 80%

“…2) provides a flow rate in the range of 0.2-5 g/min at a pressure in the receiver of 50-760 Torr according to the readings of the pressure and vacuum meter. This range exceeds the values obtained experimentally ~1.5 mg/s [10] by approximately 1.5-2 times. Similarly to the previously tested prototype [10], the cathode system was initially tested without water supply.…”

Section: Blumlein Line Acceleratorcontrasting

confidence: 55%

“…This range exceeds the values obtained experimentally ~1.5 mg/s [10] by approximately 1.5-2 times. Similarly to the previously tested prototype [10], the cathode system was initially tested without water supply. Typical voltage and current waveforms are shown in Fig.…”

Section: Blumlein Line Acceleratorcontrasting

confidence: 55%

“…The reason for this is, as a rule, a change in the morphology and properties of the material of the cathode emitting surface [6][7][8]. One of the original ways to ensure the emissivity of the cathode is the use of a consumable for plasma formation, for example, liquid metal [9] or distilled water [10] stored in the cathode tank. The present work is testing a method for supplying liquid to the cathode of a vacuum electron diode from a container outside a high-voltage installation.…”

Section: Introductionmentioning

confidence: 99%

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Testing of the water supplying system for the cathode of a vacuum electron diode

Egorov¹,

Serebrennikov²,

Poloskov³

2022

8th International Congress on Energy Fluxes and Radiation Effects

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An increase in the number of examples of the use of pulsed electron accelerators as sources of ionizing radiation stimulates the development of accelerator technology. One of the nodes that require the attention of researchers and developers of high-power pulsed accelerators is the electron emitter, the cathode. Research in this direction is being carried out both to improve the emission characteristics and to increase the lifetime and operational characteristics of the assembly. One of the original developments is the use of a liquid injected into the accelerating gap as a substance for plasma formation. This work is devoted to testing the system of external liquid supply to the cathode of a vacuum electron diode. The change in the vacuum conditions in the diode during the injection of water is studied. The system is tested when a high voltage pulse is applied to the cathode. The values of water flow rates at which frostbite occurs by the injection system are established. Based on the research results, conclusions were made about the required characteristics of the liquid during injection into the accelerating gap of the vacuum electron diode of a pulsed submicrosecond accelerator.

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Section: Transformer Based Acceleratorsupporting

confidence: 80%

Section: Blumlein Line Acceleratorcontrasting

confidence: 55%

Section: Blumlein Line Acceleratorcontrasting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Testing of the water supplying system for the cathode of a vacuum electron diode

Egorov¹,

Serebrennikov²,

Poloskov³

2022

8th International Congress on Energy Fluxes and Radiation Effects

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show abstract

High-voltage pulse bushing with induced voltage distribution between sections

Poloskov

Serebrennikov

Egorov

2021

Vacuum

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Experimental installation for studying cathode plasma processes in vacuum gap of pulsed electron accelerator with gas or liquid injection

Egorov

Klimkin

Poloskov

et al. 2021

J. Phys.: Conf. Ser.

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One of the directions of using plasma sources is the formation of plasma emitters for electron beams as part of direct-action charged particle accelerators. The parameters of the accelerator generators require mutual matching with the characteristics of the plasma emitters. The paper describes the design, composition and diagnostic equipment of an experimental stand based on a vacuum chamber of a pulsed electron accelerator for testing plasma sources of pulsed electron beams. The stand includes a vacuum volume with a high-voltage bushing, pumping out pipes, diagnostic windows along the perimeter and a mounting flange of a complex device for diagnosing the characteristics of pulsed electron beams. The stand provides the possibility of controlled supply of gas and liquid to the formation region of the plasma emitter of electrons under the influence of an accelerating voltage pulse. The location of the diagnostic windows and flanges of the stand allows direct optical observations of the plasma formation region in the frontal and profile directions. The use of the stand will make it possible to determine the characteristics of the tested plasma emitters for their operation as part of a vacuum diode of pulsed electron accelerator.

show abstract

Experimental demonstration of a single capillary, water-activated cathode for a sub-microsecond electron accelerator

Cited by 4 publications

References 21 publications

Testing of the water supplying system for the cathode of a vacuum electron diode

Testing of the water supplying system for the cathode of a vacuum electron diode

High-voltage pulse bushing with induced voltage distribution between sections

Experimental installation for studying cathode plasma processes in vacuum gap of pulsed electron accelerator with gas or liquid injection

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