A5036687616- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Gyrotron and Vacuum Electronics Research
- Nuclear Physics and Applications
- Superconducting Materials and Applications
- Magnetic confinement fusion research
- Laser-Plasma Interactions and Diagnostics
- Atomic and Subatomic Physics Research
- Advanced X-ray Imaging Techniques
- Laser Design and Applications
- Atomic and Molecular Physics
- Advanced Optical Sensing Technologies
- Non-Destructive Testing Techniques
- Plasma Diagnostics and Applications
- Radiation Therapy and Dosimetry
- Laser-induced spectroscopy and plasma
- Advanced Radiotherapy Techniques
- Superconducting and THz Device Technology
- Semiconductor materials and devices
- Physics of Superconductivity and Magnetism
- Muon and positron interactions and applications
- Electromagnetic Launch and Propulsion Technology
- Particle Detector Development and Performance
- Engineering Applied Research
- Fusion materials and technologies
Argonne National Laboratory
2007-2024
Office of Scientific and Technical Information
2010
China Academy of Engineering Physics
2009
The Aerospace Corporation
2002
Pennsylvania State University
1985-1990
Fusion (United States)
1990
Plasma Technology (United States)
1988-1990
Fusion Academy
1990
A decade-long effort at the Advanced Photon Source (APS) of Argonne National Laboratory (ANL) on development superconducting undulators culminated in December 2012 with installation first undulator ``SCU0'' into Sector 6 APS storage ring. The device was commissioned January 2013 and has been user operation since. This paper presents magnetic cryogenic design SCU0 together results stand-alone cold tests. initial commissioning characterization as well its operating experience ring are described.
Development of superconducting undulators continues at the Advanced Photon Source (APS). Two years after successful installation and commissioning first relatively short undulator ``SCU0'' in Sector 6 APS storage ring, second 1.1-m-long ``SCU1'' was installed 1 APS. The device has been user operation since its May 2015. This paper describes magnetic cryogenic design SCU1 together with results stand-alone cold tests. SCU1's performance as well operating experience ring are also presented.
We report observations of an intense sub-THz radiation extracted from a ∼3 MeV electron beam with flat transverse profile propagating between two parallel oversized copper gratings side openings. Low-loss outcoupling is accomplished using horn antenna and miniature permanent magnet separating beams. A tabletop experiment utilizes radio frequency thermionic gun delivering thousand momentum-chirped microbunches per macropulse alpha-magnet movable scraper producing sub-mm microbunches. The...
The Advanced Photon Source (APS) team is building a fourth-generation storage ring (4GSR), replacing the present double-bend achromat lattice with multibend system thereby allowing production of ultrabright x-ray beams. new enables 2-order-of-magnitude reduction in horizontal beam emittance and factor two increase current. result an electron very high energy power densities. Initial predictions suggest many common ultrahigh-vacuum-compatible materials struck by full-intensity will be...
To realize and test advanced accelerator concepts hardware, a beam line is being reconfigured in the linac extension area (LEA) of Argonne Advanced Photon Source (APS) linac. A photocathode rf gun installed at beginning APS will provide low emittance electron into LEA line. The thermionic for storage ring be accelerated through an interleaved fashion. In this paper, design studies interleaving lattice realization described with initial experiment result.
Abstract We report on measurements of beams from thermionic cathode (TC) rf guns in the Advanced Photon Source S-Band Linac. These include macropulse out both new and existing TC as well observation microbunching within micropulses these beams. A gun chopper limits FWHM duration to 10-ns range. Our objectives were analyse investigate a TC-rf-gun-generated beam. diagnostics elucidated longitudinal beam structures ns fs time scales. Coherent transition radiation (CTR) interferometers...
Abstract The Linac Extension Area has been developed into a beamline area for testing accelerator components and techniques. Beginning commissioning activities in February 2023, we have delivered the first electron beam to at Advanced Photon Source 425 MeV. In present work, summarise principal review safety controls of Area.
The Kicker system is used to extract beam from the Rapid Cycling Synchrotron (RCS). consists of four identical pulse circuits, each providing over 3.8 kA magnet winding. length restricted space between vacuum bellows attached ring magnets. This leaves 0.89 m for magnet. To keep voltage low conductor broke up into 4, 1/4-turn windings. Each circuit a Pulse Forming Network (PFN) that charged 50 KV. PFN discharged through thyratron 6.3-ohm transmission line one Our has always had marginal rise...
The intense pulsed neutron source (IPNS) rapid cycling synchrotron (RCS) is used to accelerate protons from 50 MeV 450 MeV, at a repetition rate of 30 Hz. original ring design included two identical rf systems, each consisting an accelerating cavity, cavity bias supply, power amplifiers and low-level analog electronics. cavities are located 180 degrees apart in the provide total peak voltage ~21 kV over 2.21-MHz 5.14-MHz revolution frequency sweep. A third system has been constructed...
Grumman Aerospace Corporation, Argonne National Laboratory, and Culham Laboratory are commissioning the Continuous Wave Deuterium Demonstrator (CWDD) in a facility at Laboratory. CWDD is high-brightness, high-current, 7.5-MeV negative deuterium accelerator. The 352-MHz rf accelerating cavities ate cryogenically cooled with supercritical neon to reduce power requirements. Installation of accelerator into began May 1991, first beam from injector was extracted February 1992. described, current...
The Intense Pulsed Neutron Source (IPNS) Rapid Cycling Synchrotron (RCS) delivers 450-MeV protons in 70 ns pulses at 30 Hz to a heavy-metal target producing spallation neutrons for material science research. average current extracted from the RCS is 15 /spl mu/A with peak intensity of 10 amps. large circulating currents generate oscillations bunch which are presently controlled by modulating phase two RF cavities. By adding second harmonic (SH) rf, length can be increased reducing current....
The rapid cycling synchrotron (RCS) of the intense pulsed neutron source (IPNS) at ANL accelerates > 3.0 times 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</sup> protons from 50 MeV to 450 with 30-Hz repetition frequency. During acceleration cycle, rf frequency varies 2.21 MHz 5.14 MHz. Presently, beam current is limited by a vertical instability. By analyzing turn-by-turn position monitor (BPM) data, large- amplitude mode 0 and 1...