Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Laser-driven photoelectron induced pulsed X-ray source for energy dispersive X-ray spectroscopy and radiography applications

Not Accessible

Your library or personal account may give you access

Abstract

We present the details of a nanosecond pulsed X-ray source developed for energy dispersive X-ray spectroscopy (EDX) and low-dose fast radiography. The source is based on the illumination of a metal photocathode, placed in a Pierce-type electron gun geometry, with a low energy Nd:YAG laser, delivering 266 nm wavelength pulses with a time duration of 5 ns and energy in the range of 12–100 mJ. The emitted nanosecond pulsed photoelectrons are accelerated up to 30 keV energy and impinge on the cathode. The influence of laser energy and electron accelerating potential on the X-ray flux is investigated. The X-ray flux is found to follow power law as ${I_x} \propto {({{E_l}})^\alpha}$, where ${E_l}$ is the laser energy and $\alpha$ depends on the accelerating potentials. The preliminary experiments confirm that this source can be used for increased sensitivity EDX analysis as compared to the commercial secondary electron microscope. Our radiography results indicate that the use of alkali-based photocathodes can facilitate capturing a radiograph in a single laser pulse of a nanosecond time duration.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Generation of picosecond hard-x-ray pulses in a femtosecond-laser-driven x-ray diode

Ulf Hinze, André Egbert, Boris Chichkov, and Klaus Eidmann
Opt. Lett. 29(17) 2079-2081 (2004)

Vacuum-free femtosecond fiber laser microplasma X-ray source for radiography

Alena Garmatina, Evgenii Mareev, Nikita Minaev, Nika Asharchuk, Timur Semenov, Maria Mozhaeva, Artyom Korshunov, Yuri Krivonosov, Irina Dyachkova, Alexey Buzmakov, Vladimir Koldaev, Denis Zolotov, Yuri Dymshits, Viacheslav Gordienko, and Viktor Asadchikov
Opt. Express 31(26) 44259-44272 (2023)

Ultrashort 1-kHz laser plasma hard x-ray source

Georg Korn, Andreas Thoss, Holger Stiel, Ullrich Vogt, Martin Richardson, Thomas Elsaesser, and Manfred Faubel
Opt. Lett. 27(10) 866-868 (2002)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved