Design and optimization of a 100 keV DC/RF ultracold electron source

Daniel F.J. Nijhof; Peter H.A. Mutsaers; O.J. Luiten

doi:10.1016/j.nima.2023.168469

Design and optimization of a 100 keV DC/RF ultracold electron source

Daniel F.J. Nijhof (Corresponding author), Peter H.A. Mutsaers, O.J. Luiten (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

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An ultracold electron source based on near-threshold photoionization of a laser-cooled and trapped atomic gas is presented in this work. Initial DC acceleration to
10 keV and subsequent acceleration of the created bunches to 100 keV by RF fields makes the design suitable to serve as injector for accelerator-based light sources, single-shot ultrafast protein crystallography, applications in dielectric laser acceleration schemes, and potentially as an injector for free electron lasers operating in the quantum regime. This paper presents the design and properties of the developed DC/RF structure. It is shown that operation at a repetition frequency of 1 kHz is achievable and detailed particle tracking simulations are presented showing the possibility of achieving a brightness that can exceed conventional RF photosources.

Originele taal-2	Engels
Artikelnummer	168469
Aantal pagina's	8
Tijdschrift	Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1055
DOI's	https://doi.org/10.1016/j.nima.2023.168469
Status	Gepubliceerd - okt. 2023

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The author would like to thank A. Rajabi, T.G. Lucas, and W.F. Toonen for their support and fruitful discussions, additionally, thanks to E. Rietman, M. van der Sluis, H. van Doorn, and H. van den Heuvel for their expert technical assistance. This publication is part of the project ColdLight: From laser-cooled atoms to coherent soft X-rays (with project number 741.018.303 of the research programme ColdLight) which is (partly) financed by the Dutch Research Council (NWO), Netherlands .

Financiers	Financiernummer
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

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keywords = "Beam brightness, Emittance, Laser cooling, RF acceleration, Ultracold electrons",

author = "Nijhof, {Daniel F.J.} and Mutsaers, {Peter H.A.} and O.J. Luiten",

year = "2023",

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Design and optimization of a 100 keV DC/RF ultracold electron source. / Nijhof, Daniel F.J. (Corresponding author); Mutsaers, Peter H.A.; Luiten, O.J. (Corresponding author).
In: Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 1055, 168469, 10.2023.

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

TY - JOUR

T1 - Design and optimization of a 100 keV DC/RF ultracold electron source

AU - Nijhof, Daniel F.J.

AU - Mutsaers, Peter H.A.

AU - Luiten, O.J.

PY - 2023/10

Y1 - 2023/10

N2 - An ultracold electron source based on near-threshold photoionization of a laser-cooled and trapped atomic gas is presented in this work. Initial DC acceleration to 10 keV and subsequent acceleration of the created bunches to 100 keV by RF fields makes the design suitable to serve as injector for accelerator-based light sources, single-shot ultrafast protein crystallography, applications in dielectric laser acceleration schemes, and potentially as an injector for free electron lasers operating in the quantum regime. This paper presents the design and properties of the developed DC/RF structure. It is shown that operation at a repetition frequency of 1 kHz is achievable and detailed particle tracking simulations are presented showing the possibility of achieving a brightness that can exceed conventional RF photosources.

AB - An ultracold electron source based on near-threshold photoionization of a laser-cooled and trapped atomic gas is presented in this work. Initial DC acceleration to 10 keV and subsequent acceleration of the created bunches to 100 keV by RF fields makes the design suitable to serve as injector for accelerator-based light sources, single-shot ultrafast protein crystallography, applications in dielectric laser acceleration schemes, and potentially as an injector for free electron lasers operating in the quantum regime. This paper presents the design and properties of the developed DC/RF structure. It is shown that operation at a repetition frequency of 1 kHz is achievable and detailed particle tracking simulations are presented showing the possibility of achieving a brightness that can exceed conventional RF photosources.

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KW - Emittance

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Design and optimization of a 100 keV DC/RF ultracold electron source

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