PAC2013 - List of Authors (Faillace, L.)

Paper

Title

Page

Continued Development and Testing of Carbon Nanotube Cathodes at Radiabeam

394

J.J. Hartzell, R.B. Agustsson, S. Boucher, L. Faillace, A.Y. Murokh, A.V. Smirnov
RadiaBeam, Santa Monica, USA
W.A. Hubbard, C. Regan
UCLA, Los Angeles, USA

Funding: US Department of Energy
RadiaBeam Technologies is developing carbon nanotube (CNT) based field emission cathodes for DC-pulsed and radio-frequency electron sources. CNT cathodes offer simple operation, have demonstrated high current densities, and can maintain low thermal emittance due to their ability to emit at room temperature. The experimental results of high-voltage and lifetime testing of CNT cathodes are presented. There is also a brief summary of a planned experiment in a dual-frequency RF gun. Additionally, some of the challenges posed by the fabrication and handling of the CNT cathodes are discussed.

Slides TUOAB2 [10.433 MB]

TUPSM27

High-power Tests and Initial Electron Beam Measurements of the New High-gradient Normal Conducting RF Photoinjector System for the Sincrotrone Trieste

694

L. Faillace, R.B. Agustsson, H. Badakov, P. Frigola, A. Verma
RadiaBeam, Santa Monica, USA
F. Cianciosi, P. Craievich, M. Trovò
Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
A. Fukasawa, J.B. Rosenzweig, A. Yakub
UCLA, Los Angeles, USA

Radiabeam Technologies, in collaboration with UCLA, presents the development of a high gradient normal conducting radio frequency (NCRF) 1.6 cell photoinjector system, termed the Fermi Gun II, for the Sincrotrone Trieste (ST) facility. Designed to operate with a 120MV/m accelerating gradient, this single feed, fat lipped racetrack coupler design is modeled after the LCLS photoinjector with a novel demountable cathode which permits cost effective cathode exchange. Full overview of the project to date, installation, high-power RF conditioning and initial electron beam emittance measurements at Sincrotrone Trieste will be discussed along with basic design, engineering and manufacturing.

TUPSM28

Innovative Low-Energy Ultra-Fast Electron Diffraction (UED) System

697

E.W. Threlkeld, P. Musumeci
UCLA, Los Angeles, USA
S. Boucher, L. Faillace, A.V. Smirnov
RadiaBeam, Santa Monica, USA

Funding: Work supported by US DOE grant # DE-SC0006274
RadiaBeam, in collaboration with UCLA, is developing an innovative, inexpensive, low-energy ultra-fast electron diffraction (UED) system which allows us to reconstruct a single ultrafast event with a single pulse of electrons. Time resolved measurement of atomic motion is one of the frontiers of modern science, and advancements in this area will greatly improve our understanding of the basic processes in materials science, chemistry and biology. The high-frequency (GHz), high voltage, phase-locked RF field in the deflector allows temporal resolution as fine as sub-100 fs. In this paper, we show the complete design of the UED system based on this concept, including initial beam measurements.

THOAA2

Compact, Inexpensive X-band Linacs as Radioactive Isotope Source Replacements

S. Boucher, R.B. Agustsson, L. Faillace, J.J. Hartzell, A.Y. Murokh, S. Seung, A.V. Smirnov, S. Storms, K.E. Woods
RadiaBeam, Santa Monica, USA

Funding: Work supported by DNDO Phase II SBIR HSHQDC-10-C-00148 and DOE Phase II SBIR DE-SC0000865.
Radioisotope sources are commonly used in a variety of industrial and medical applications. The US National Research Council has identified as a priority the replacement of high-activity sources with alternative technologies, due to the risk of accidents and diversion by terrorists for use in Radiological Dispersal Devices (“dirty bombs”). RadiaBeam Technologies is developing novel, compact, inexpensive linear accelerators for use in a variety of such applications as cost-effective replacements. The technology is based on the MicroLinac (originally developed at SLAC), an X-band linear accelerator powered by an inexpensive and commonly available magnetron. Prototypes are currently under construction. This paper will describe the design, engineering, fabrication and testing of these linacs at RadiaBeam. Future development plans will also be discussed.

Slides THOAA2 [6.067 MB]

THPAC29

Fabrication and Validation of a Normal Conducting Radio Frequency S-Band Deflecting Cavity for the Pohang Accelerator Laboratory (PAL)

1202

L. Faillace, R.B. Agustsson, J.J. Hartzell, A.Y. Murokh, S. Storms
RadiaBeam, Santa Monica, USA

Radiabeam Technologies recently developed an S-Band normal-conducting radio-Frequency (NCRF) deflecting cavity for the Pohang Accelerator Laboratory (PAL) in order to perform longitudinal characterization of the sub-picosecond ultra-relativistic electron beams. The device is optimized for the 135 MeV electron beam parameters. The 1m-long PAL deflector is designed to operate at 2.856 GHz and features short filling time and femtosecond resolution. RF design, fabrication, RF validation and tuning will be presented, as well as initial beam measurements.

Paper	Title	Page
TUOAB2	Continued Development and Testing of Carbon Nanotube Cathodes at Radiabeam	394
	J.J. Hartzell, R.B. Agustsson, S. Boucher, L. Faillace, A.Y. Murokh, A.V. Smirnov RadiaBeam, Santa Monica, USA W.A. Hubbard, C. Regan UCLA, Los Angeles, USA
	Funding: US Department of Energy RadiaBeam Technologies is developing carbon nanotube (CNT) based field emission cathodes for DC-pulsed and radio-frequency electron sources. CNT cathodes offer simple operation, have demonstrated high current densities, and can maintain low thermal emittance due to their ability to emit at room temperature. The experimental results of high-voltage and lifetime testing of CNT cathodes are presented. There is also a brief summary of a planned experiment in a dual-frequency RF gun. Additionally, some of the challenges posed by the fabrication and handling of the CNT cathodes are discussed.
	Slides TUOAB2 [10.433 MB]

TUPSM27	High-power Tests and Initial Electron Beam Measurements of the New High-gradient Normal Conducting RF Photoinjector System for the Sincrotrone Trieste	694
	L. Faillace, R.B. Agustsson, H. Badakov, P. Frigola, A. Verma RadiaBeam, Santa Monica, USA F. Cianciosi, P. Craievich, M. Trovò Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy A. Fukasawa, J.B. Rosenzweig, A. Yakub UCLA, Los Angeles, USA
	Radiabeam Technologies, in collaboration with UCLA, presents the development of a high gradient normal conducting radio frequency (NCRF) 1.6 cell photoinjector system, termed the Fermi Gun II, for the Sincrotrone Trieste (ST) facility. Designed to operate with a 120MV/m accelerating gradient, this single feed, fat lipped racetrack coupler design is modeled after the LCLS photoinjector with a novel demountable cathode which permits cost effective cathode exchange. Full overview of the project to date, installation, high-power RF conditioning and initial electron beam emittance measurements at Sincrotrone Trieste will be discussed along with basic design, engineering and manufacturing.

TUPSM28	Innovative Low-Energy Ultra-Fast Electron Diffraction (UED) System	697
	E.W. Threlkeld, P. Musumeci UCLA, Los Angeles, USA S. Boucher, L. Faillace, A.V. Smirnov RadiaBeam, Santa Monica, USA
	Funding: Work supported by US DOE grant # DE-SC0006274 RadiaBeam, in collaboration with UCLA, is developing an innovative, inexpensive, low-energy ultra-fast electron diffraction (UED) system which allows us to reconstruct a single ultrafast event with a single pulse of electrons. Time resolved measurement of atomic motion is one of the frontiers of modern science, and advancements in this area will greatly improve our understanding of the basic processes in materials science, chemistry and biology. The high-frequency (GHz), high voltage, phase-locked RF field in the deflector allows temporal resolution as fine as sub-100 fs. In this paper, we show the complete design of the UED system based on this concept, including initial beam measurements.

THOAA2	Compact, Inexpensive X-band Linacs as Radioactive Isotope Source Replacements
	S. Boucher, R.B. Agustsson, L. Faillace, J.J. Hartzell, A.Y. Murokh, S. Seung, A.V. Smirnov, S. Storms, K.E. Woods RadiaBeam, Santa Monica, USA
	Funding: Work supported by DNDO Phase II SBIR HSHQDC-10-C-00148 and DOE Phase II SBIR DE-SC0000865. Radioisotope sources are commonly used in a variety of industrial and medical applications. The US National Research Council has identified as a priority the replacement of high-activity sources with alternative technologies, due to the risk of accidents and diversion by terrorists for use in Radiological Dispersal Devices (“dirty bombs”). RadiaBeam Technologies is developing novel, compact, inexpensive linear accelerators for use in a variety of such applications as cost-effective replacements. The technology is based on the MicroLinac (originally developed at SLAC), an X-band linear accelerator powered by an inexpensive and commonly available magnetron. Prototypes are currently under construction. This paper will describe the design, engineering, fabrication and testing of these linacs at RadiaBeam. Future development plans will also be discussed.
	Slides THOAA2 [6.067 MB]

THPAC29	Fabrication and Validation of a Normal Conducting Radio Frequency S-Band Deflecting Cavity for the Pohang Accelerator Laboratory (PAL)	1202
	L. Faillace, R.B. Agustsson, J.J. Hartzell, A.Y. Murokh, S. Storms RadiaBeam, Santa Monica, USA
	Radiabeam Technologies recently developed an S-Band normal-conducting radio-Frequency (NCRF) deflecting cavity for the Pohang Accelerator Laboratory (PAL) in order to perform longitudinal characterization of the sub-picosecond ultra-relativistic electron beams. The device is optimized for the 135 MeV electron beam parameters. The 1m-long PAL deflector is designed to operate at 2.856 GHz and features short filling time and femtosecond resolution. RF design, fabrication, RF validation and tuning will be presented, as well as initial beam measurements.