Publication:
Laser-heated capillary discharge plasma waveguides for electron acceleration to 8 GeV

Простая страница элемента
dc.contributor.authorGonsalves, A. J.
dc.contributor.authorNakamura, K.
dc.contributor.authorBenedetti, C.
dc.contributor.authorPieronek, C. V.
dc.contributor.authorBagdasarov, G.
dc.contributor.authorGasilov, V.
dc.contributor.authorГасилов, Владимир Анатольевич
dc.date.accessioned2024-11-26T13:44:27Z
dc.date.available2024-11-26T13:44:27Z
dc.date.issued2020
dc.description.abstractA plasma channel created by the combination of a capillary discharge and inverse Bremsstrahlung laser heating enabled the generation of electron bunches with energy up to 7.8GeV in a laser-driven plasma accelerator. The capillary discharge created an initial plasma channel and was used to tune the plasma temperature, which optimized laser heating. Although optimized colder initial plasma temperatures reduced the ionization degree, subsequent ionization from the heater pulse created a fully ionized plasma on-axis. The heater pulse duration was chosen to be longer than the hydrodynamic timescale of approximate to 1ns, such that later temporal slices were more efficiently guided by the channel created by the front of the pulse. Simulations are presented which show that this thermal self-guiding of the heater pulse enabled channel formation over 20cm. The post-heated channel had lower on-axis density and increased focusing strength compared to relying on the discharge alone, which allowed for guiding of relativistically intense laser pulses with a peak power of 0.85 PW and wakefield acceleration over 15 diffraction lengths. Electrons were injected into the wake in multiple buckets and times, leading to several electron bunches with different peak energies. To create single electron bunches with low energy spread, experiments using localized ionization injection inside a capillary discharge waveguide were performed. A single injected bunch with energy 1.6GeV, charge 38 pC, divergence 1 mrad, and relative energy spread below 2% full-width half-maximum was produced in a 3.3cm-long capillary discharge waveguide. This development shows promise for mitigation of energy spread and future high efficiency staged acceleration experiments.
dc.identifier.citationLaser-heated capillary discharge plasma waveguides for electron acceleration to 8 GeV / Gonsalves, AJ [et al.] // Physics of Plasmas. - 2020. - 27. - № 5. - 10.1063/5.0002769
dc.identifier.doi10.1063/5.0002769
dc.identifier.urihttps://www.doi.org/10.1063/5.0002769
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85091659440&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000533621500001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/21833
dc.relation.ispartofPhysics of Plasmas
dc.titleLaser-heated capillary discharge plasma waveguides for electron acceleration to 8 GeV
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue5
oaire.citation.volume27
relation.isAuthorOfPublication4b67a08c-1bac-4eb9-8daf-b3050c71144c
relation.isAuthorOfPublication.latestForDiscovery4b67a08c-1bac-4eb9-8daf-b3050c71144c
relation.isOrgUnitOfPublicationba0b4738-e6bd-4285-bda5-16ab2240dbd1
relation.isOrgUnitOfPublication.latestForDiscoveryba0b4738-e6bd-4285-bda5-16ab2240dbd1
Файлы
Original bundle
Теперь показываю 1 - 1 из 1
Уменьшенное изображение
Name:
W3021950260.pdf
Size:
3.37 MB
Format:
Adobe Portable Document Format
Description:
Download
Коллекции
Публикации