PAC2013 - List of Authors (Shiltsev, V.D.)

Paper

Title

Page

Colliders - "Quo Vadis?": Past 20 Years, Next 20 Years, and Beyond

11

V.D. Shiltsev
Fermilab, Batavia, USA

Particle colliders for high-energy physics have been in the forefront of scientific discoveries for more than half a century. The accelerator technology of the colliders has progressed immensely, while the beam energy, luminosity, facility size, and cost have grown by several orders of magnitude. The method of colliding beams has not fully exhausted its potential but has slowed down considerably in its progress. This paper briefly reviews the colliding beam method and the history of colliders, discusses the development of the method over the last two decades in detail, and examines near-term collider projects that are currently under development. The paper concludes with an attempt to look beyond the current horizon and to find what paradigm changes are necessary for breakthroughs in the field.

Slides MOOAA1 [4.362 MB]

MOPAC15

ASTA at Fermilab: Accelerator Physics and Accelerator Education Programs at the Modern Accelerator R&D Users Facility for HEP and Accelerator Applications

96

V.D. Shiltsev
Fermilab, Batavia, USA
P. Piot
Northern Illinois University, DeKalb, Illinois, USA

We present the current and planned accelerator physics program at accelerator education program at ASTA (Advanced Superconducting Test Accelerator). It will enable a broad range of beam-based experiments to study fundamental limitations to beam intensity and to develop transformative approaches to particle-beam generation, acceleration and manipulation. ASTA incorporates a superconducting radiofrequency (SRF) linac coupled to a photoinjector and small-circumference storage ring capable of storing electrons or protons. ASTA will establish a unique resource for R&D towards Energy Frontier facilities and a test-bed for SRF accelerators and high-brightness beam applications. The unique features of ASTA include: (1) a high repetition-rate, (2) one of the highest peak and average brightness within the U.S., (3)a GeV-scale beam energy, (4) an extremely stable beam, (5) the availability of SRF and high-quality beams together, and (6) a storage ring capable of supporting a broad range of ring-based advanced beam dynamics experiments. These unique features will foster a broad program in advanced accelerator R&D and accelerator education which cannot be carried out elsewhere.

MOPAC16

Issues and R&D Required for the Intensity Frontier Accelerators

99

V.D. Shiltsev, S. Henderson, P. Hurh, I. Kourbanis, V.A. Lebedev, S. Nagaitsev
Fermilab, Batavia, USA

Operation, upgrade and development of accelerators for Intensity Frontier face formidable challenges in order to satisfy both the near-term and long-term Particle Physics program. The near-term program continuing throughout this decade includes the long-baseline neutrino experiments and a muon program focused on precision/rare processes. It requires: a) double the beam power capability of the Booster; b) double the beam power capability of the Main Injector; and c)build-out the muon campus infrastructure and capability based on the 8 GeV proton source. We discuss key issues and R&D required for the Intensity Frontier accelerators.

MOPAC18

Feasibility Study of Channeling Acceleration Experiment at the Fermilab ASTA Facility

105

Y.-M. Shin, T. Xu
Northern Illinois University, Dekalb, USA
V.D. Shiltsev, D.A. Still
Fermilab, Batavia, USA

The density of charge carriers in solids, 4 ~ 5 orders of magnitude higher than those in gaseous plasma, can in principle create an accelerating field gradient up to 10 – 31.6 TeV/m. This extremely high acceleration gradient can offer various opportunities in accelerator community for future HEP collider in Energy Frontier. It was suggested that particles are accelerated along major crystallographic directions. The ions and photons are readily confined in the atomic tunnel of an angstrom-scale aperture, so called the channeling effect, which can accelerate heavy particles like muons from an x-ray laser or electrons from a drive beam. Carbon-based nanostructures have great potential with a wide range of flexibility and superior physical strength, which can be applied to channeling acceleration. The ASTA in Fermilab is currently designed with 1 ps electron bunch with 1 ms duration and 5 Hz PRR at 50 – 300 MeV, which is properly fit for the channeling acceleration test. This paper will present current activity on crystal accelerator research, including acceleration concepts with crystals and nanotubes, and discuss feasible experiments with the ASTA and beyond.

TUOBB1

Space-charge Compensation for High-intensity Linear and Circular Accelerators at Fermilab

402

M. Chung, L.R. Prost, V.D. Shiltsev
Fermilab, Batavia, USA

Funding: Research supported by the U.S. Department of Energy.
Space-charge effects have long been recognized as a fundamental intensity limitation in high-intensity linear and circular accelerators. As the mission of the US high energy physics program is pushing the Intensity Frontier, it is very timely to explore novel schemes of space-charge compensation that could significantly improve the performance of leading high-intensity proton accelerator facilities such as Project-X. In this work, we present two activities at Fermilab on the space-charge compensation experiments based on residual gas ionization: 1) neutralized beam transport of continuous-wave (CW) H⁻ beam in Project-X Injector Experiment (PXIE); and 2) trapped electron plasmas for space-charge compensation in the newly proposed Integrable Optics Test Accelerators (IOTA) ring. Characteristics of the stability in the beam-plasma system, the dynamics of beam neutralization, and the transition between neutralized and un-neutralized beam transports are discussed for each configuration.

Slides TUOBB1 [1.543 MB]

Paper	Title	Page
MOOAA1	Colliders - "Quo Vadis?": Past 20 Years, Next 20 Years, and Beyond	11
	V.D. Shiltsev Fermilab, Batavia, USA
	Particle colliders for high-energy physics have been in the forefront of scientific discoveries for more than half a century. The accelerator technology of the colliders has progressed immensely, while the beam energy, luminosity, facility size, and cost have grown by several orders of magnitude. The method of colliding beams has not fully exhausted its potential but has slowed down considerably in its progress. This paper briefly reviews the colliding beam method and the history of colliders, discusses the development of the method over the last two decades in detail, and examines near-term collider projects that are currently under development. The paper concludes with an attempt to look beyond the current horizon and to find what paradigm changes are necessary for breakthroughs in the field.
	Slides MOOAA1 [4.362 MB]

MOPAC15	ASTA at Fermilab: Accelerator Physics and Accelerator Education Programs at the Modern Accelerator R&D Users Facility for HEP and Accelerator Applications	96
	V.D. Shiltsev Fermilab, Batavia, USA P. Piot Northern Illinois University, DeKalb, Illinois, USA
	We present the current and planned accelerator physics program at accelerator education program at ASTA (Advanced Superconducting Test Accelerator). It will enable a broad range of beam-based experiments to study fundamental limitations to beam intensity and to develop transformative approaches to particle-beam generation, acceleration and manipulation. ASTA incorporates a superconducting radiofrequency (SRF) linac coupled to a photoinjector and small-circumference storage ring capable of storing electrons or protons. ASTA will establish a unique resource for R&D towards Energy Frontier facilities and a test-bed for SRF accelerators and high-brightness beam applications. The unique features of ASTA include: (1) a high repetition-rate, (2) one of the highest peak and average brightness within the U.S., (3)a GeV-scale beam energy, (4) an extremely stable beam, (5) the availability of SRF and high-quality beams together, and (6) a storage ring capable of supporting a broad range of ring-based advanced beam dynamics experiments. These unique features will foster a broad program in advanced accelerator R&D and accelerator education which cannot be carried out elsewhere.

MOPAC16	Issues and R&D Required for the Intensity Frontier Accelerators	99
	V.D. Shiltsev, S. Henderson, P. Hurh, I. Kourbanis, V.A. Lebedev, S. Nagaitsev Fermilab, Batavia, USA
	Operation, upgrade and development of accelerators for Intensity Frontier face formidable challenges in order to satisfy both the near-term and long-term Particle Physics program. The near-term program continuing throughout this decade includes the long-baseline neutrino experiments and a muon program focused on precision/rare processes. It requires: a) double the beam power capability of the Booster; b) double the beam power capability of the Main Injector; and c)build-out the muon campus infrastructure and capability based on the 8 GeV proton source. We discuss key issues and R&D required for the Intensity Frontier accelerators.

MOPAC18	Feasibility Study of Channeling Acceleration Experiment at the Fermilab ASTA Facility	105
	Y.-M. Shin, T. Xu Northern Illinois University, Dekalb, USA V.D. Shiltsev, D.A. Still Fermilab, Batavia, USA
	The density of charge carriers in solids, 4 ~ 5 orders of magnitude higher than those in gaseous plasma, can in principle create an accelerating field gradient up to 10 – 31.6 TeV/m. This extremely high acceleration gradient can offer various opportunities in accelerator community for future HEP collider in Energy Frontier. It was suggested that particles are accelerated along major crystallographic directions. The ions and photons are readily confined in the atomic tunnel of an angstrom-scale aperture, so called the channeling effect, which can accelerate heavy particles like muons from an x-ray laser or electrons from a drive beam. Carbon-based nanostructures have great potential with a wide range of flexibility and superior physical strength, which can be applied to channeling acceleration. The ASTA in Fermilab is currently designed with 1 ps electron bunch with 1 ms duration and 5 Hz PRR at 50 – 300 MeV, which is properly fit for the channeling acceleration test. This paper will present current activity on crystal accelerator research, including acceleration concepts with crystals and nanotubes, and discuss feasible experiments with the ASTA and beyond.

TUOBB1	Space-charge Compensation for High-intensity Linear and Circular Accelerators at Fermilab	402
	M. Chung, L.R. Prost, V.D. Shiltsev Fermilab, Batavia, USA
	Funding: Research supported by the U.S. Department of Energy. Space-charge effects have long been recognized as a fundamental intensity limitation in high-intensity linear and circular accelerators. As the mission of the US high energy physics program is pushing the Intensity Frontier, it is very timely to explore novel schemes of space-charge compensation that could significantly improve the performance of leading high-intensity proton accelerator facilities such as Project-X. In this work, we present two activities at Fermilab on the space-charge compensation experiments based on residual gas ionization: 1) neutralized beam transport of continuous-wave (CW) H⁻ beam in Project-X Injector Experiment (PXIE); and 2) trapped electron plasmas for space-charge compensation in the newly proposed Integrable Optics Test Accelerators (IOTA) ring. Characteristics of the stability in the beam-plasma system, the dynamics of beam neutralization, and the transition between neutralized and un-neutralized beam transports are discussed for each configuration.
	Slides TUOBB1 [1.543 MB]