Variation of the beam parameters of runaway electrons in a gas discharge under the conditions of nonuniform preliminary ionization

We investigate the formation of a secondary flow of runaway electrons with energies on the order of 100 keV in an air gap after the passage of a primary picosecond flow of similar fast particles, arising in the cathode region where the distribution of the electric field is very inhomogeneous. The dependence of the secondary flow onset delay on the gap length and the field strength is demonstrated. The reasons for the discrimination of the two flows in time are considered analytically. The occurrence of fast secondary electrons in an anode-located part of the gap is demonstrated under conditions when the ionization wave generated in the cathode region by the primary runaway electrons is cutoff. For this, an intermediate aluminum foil electrode under a floating potential has been used. This third electrode, which divides the gap into two sections, is partially transparent for the runaway electrons. It has been also shown that runaway electrons demonstrate the earliest arrival to the anode if they arise due to the photoionization of the gas by bremsstrahlung of the primary particles bombarding an intermediate electrode made of tantalum foil.

show abstract

Features of the secondary runaway electron flow formed in an elongated, atmospheric pressure air gap

Yalandin

Sadykova

Sharypov

et al. 2020

Physics of Plasmas

View full text Add to dashboard Cite

show abstract

On the Mechanism of the Generation of Runaway Electrons after a Breakdown of a Gap

et al. 2021

View full text Add to dashboard Cite

Runaway Electrons at the Formation of a Positive Ionization Wave in Nitrogen and Air

2022

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Variation of the beam parameters of runaway electrons in a gas discharge under the conditions of nonuniform preliminary ionization

Cited by 3 publications

References 9 publications

Features of the secondary runaway electron flow formed in an elongated, atmospheric pressure air gap

Features of the secondary runaway electron flow formed in an elongated, atmospheric pressure air gap

On the Mechanism of the Generation of Runaway Electrons after a Breakdown of a Gap

Runaway Electrons at the Formation of a Positive Ionization Wave in Nitrogen and Air

Contact Info

Product

Resources

About