NAPAC2016 - List of Authors (Campese, T.J.)

Paper	Title	Page
WEPOB48	THz and Sub-THz Capabilities of a Table-Top Radiation Source Driven by an RF Thermionic Electron Gun	998
	A.V. Smirnov, R.B. Agustsson, S. Boucher, T.J. Campese, Y.C. Chen, J.J. Hartzell, B.T. Jacobson, A.Y. Murokh, F.H. O'Shea, E. Spranza RadiaBeam, Santa Monica, California, USA W. Berg, M. Borland, J.C. Dooling, L. Erwin, R.R. Lindberg, S.J. Pasky, N. Sereno, Y. Sun, A. Zholents ANL, Argonne, Illinois, USA W. Bruns WBFB, Berlin, Germany M.J. de Loos, S.B. van der Geer Pulsar Physics, Eindhoven, The Netherlands
	Funding: This work was supported by the U.S. Department of Energy (award No. DE-SC-FOA-0007702). Design features and experimental results are presented for a sub-mm wave source [1] based on APS RF thermionic electron gun. The setup includes compact alpha-magnet, quadrupoles, sub-mm-wave radiators, and THz optics. The sub-THz radiator is a planar, oversized structure with gratings. Source upgrade for generation frequencies above 1 THz is discussed. The THz radiator will use a short-period undulator having 1 T field amplitude, ~20 cm length, and integrated with a low-loss oversized waveguide. Both radiators are integrated with a miniature horn antenna and a small ~90°-degree in-vacuum bending magnet. The electron beamline is designed to operate different modes including conversion to a flat beam interacting efficiently with the radiator. The source can be used for cancer diagnostics, surface defectoscopy, and non-destructive testing. Sub-THz experiment demonstrated a good potential of a robust, table-top system for generation of a narrow bandwidth THz radiation. This setup can be considered as a prototype of a compact, laser-free, flexible source capable of generation of long trains of Sub-THz and THz pulses with repetition rates not available with laser-driven sources. [1] A. V. Smirnov, R. Agustsson, W. J. Berg et al., Phys. Rev. ST Accel. Beams 18, 090703(2015)
	Poster WEPOB48 [1.335 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-WEPOB48
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THB3CO04	Technology Development Toward High Duty Cycle Inverse Compton Scattering X-Ray Source
WEPOB46	use link to see paper's listing under its alternate paper code
	A.Y. Murokh, R.B. Agustsson, T.J. Campese, A.G. Ovodenko RadiaBeam, Santa Monica, California, USA M. Babzien, M.G. Fedurin, I. Pogorelsky, M.N. Polyanskiy, T.V. Shaftan, C. Swinson BNL, Upton, Long Island, New York, USA J.B. Rosenzweig, Y. Sakai UCLA, Los Angeles, California, USA
	An important challenge in the development of practical X-ray sources based on Inverse Compton Scattering is the implementation of a reliable, increased-repetition-rate operation cycle. To this end, we report the first demonstration of an actively re-amplified CO2 laser intra-cavity ICS source, which matches the electron linac pulse structure at 40 MHz repetition rate. Multi-bunch interaction with 5- and 15-pulse trains was demonstrated, and near linear photon yield gain from multi-pulse interaction was demonstrated. The system shows noticeably higher operational reliability than several contemporary single shot systems, as well as a great potential for future scalability.
	Slides THB3CO04 [2.320 MB]
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Paper

Title

Page

THz and Sub-THz Capabilities of a Table-Top Radiation Source Driven by an RF Thermionic Electron Gun

998

A.V. Smirnov, R.B. Agustsson, S. Boucher, T.J. Campese, Y.C. Chen, J.J. Hartzell, B.T. Jacobson, A.Y. Murokh, F.H. O'Shea, E. Spranza
RadiaBeam, Santa Monica, California, USA
W. Berg, M. Borland, J.C. Dooling, L. Erwin, R.R. Lindberg, S.J. Pasky, N. Sereno, Y. Sun, A. Zholents
ANL, Argonne, Illinois, USA
W. Bruns
WBFB, Berlin, Germany
M.J. de Loos, S.B. van der Geer
Pulsar Physics, Eindhoven, The Netherlands

Funding: This work was supported by the U.S. Department of Energy (award No. DE-SC-FOA-0007702).
Design features and experimental results are presented for a sub-mm wave source [1] based on APS RF thermionic electron gun. The setup includes compact alpha-magnet, quadrupoles, sub-mm-wave radiators, and THz optics. The sub-THz radiator is a planar, oversized structure with gratings. Source upgrade for generation frequencies above 1 THz is discussed. The THz radiator will use a short-period undulator having 1 T field amplitude, ~20 cm length, and integrated with a low-loss oversized waveguide. Both radiators are integrated with a miniature horn antenna and a small ~90°-degree in-vacuum bending magnet. The electron beamline is designed to operate different modes including conversion to a flat beam interacting efficiently with the radiator. The source can be used for cancer diagnostics, surface defectoscopy, and non-destructive testing. Sub-THz experiment demonstrated a good potential of a robust, table-top system for generation of a narrow bandwidth THz radiation. This setup can be considered as a prototype of a compact, laser-free, flexible source capable of generation of long trains of Sub-THz and THz pulses with repetition rates not available with laser-driven sources.
[1] A. V. Smirnov, R. Agustsson, W. J. Berg et al., Phys. Rev. ST Accel. Beams 18, 090703(2015)

Poster WEPOB48 [1.335 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-WEPOB48

Export •

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THB3CO04

Technology Development Toward High Duty Cycle Inverse Compton Scattering X-Ray Source

WEPOB46

use link to see paper's listing under its alternate paper code

A.Y. Murokh, R.B. Agustsson, T.J. Campese, A.G. Ovodenko
RadiaBeam, Santa Monica, California, USA
M. Babzien, M.G. Fedurin, I. Pogorelsky, M.N. Polyanskiy, T.V. Shaftan, C. Swinson
BNL, Upton, Long Island, New York, USA
J.B. Rosenzweig, Y. Sakai
UCLA, Los Angeles, California, USA

An important challenge in the development of practical X-ray sources based on Inverse Compton Scattering is the implementation of a reliable, increased-repetition-rate operation cycle. To this end, we report the first demonstration of an actively re-amplified CO2 laser intra-cavity ICS source, which matches the electron linac pulse structure at 40 MHz repetition rate. Multi-bunch interaction with 5- and 15-pulse trains was demonstrated, and near linear photon yield gain from multi-pulse interaction was demonstrated. The system shows noticeably higher operational reliability than several contemporary single shot systems, as well as a great potential for future scalability.

Slides THB3CO04 [2.320 MB]

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)