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Zeroth-order design report for the next linear collider. Volume 1

TLDR
The Zeroth Order Design Report (ZDR) for the Next Linear Collider (NLC) has been completed as a feasibility study for a TeV-scale linear collider that incorporates a room-temperature accelerator powered by rf microwaves at 11.424 GHz, similar to that presently used in the SLC, but at four times the rf frequency as discussed by the authors.
Abstract
This Zeroth Order Design Report (ZDR) for the Next Linear Collider (NLC) has been completed as a feasibility study for a TeV-scale linear collider that incorporates a room-temperature accelerator powered by rf microwaves at 11.424 GHz--similar to that presently used in the SLC, but at four times the rf frequency. The purpose of this study is to examine the complete systems of such a collider, to understand how the parts fit together, and to make certain that every required piece has been included. The design presented here is not fully engineered in any sense, but to be assured that the NLC can be built, attention has been given to a number of critical components and issues that present special challenges. More engineering and development of a number of mechanical and electrical systems remain to be done, but the conclusion of this study is that indeed the NLC is technically feasible and can be expected to reach the performance levels required to perform research at the TeV energy scale. Volume one covers the following: the introduction; electron source; positron source; NLC damping rings; bunch compressors and prelinac; low-frequency linacs and compressors; main linacs; design and dynamics; and RF systems for main linacs.

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Journal ArticleDOI

Klystron instability of a relativistic electron beam in a bunch compressor

TL;DR: In this article, a klystron-like mechanism of amplification of parasitic density modulations in an electron bunch passing a magnetic bunch compressor is considered and the effect of wakefields in front of the bunch compressor was analyzed by using a model of linear compression.
Journal ArticleDOI

A very high charge, high polarization gradient-doped strained GaAs photocathode

TL;DR: In this article, a high-gradient-doping technique was applied to strained polarized photocathodes to overcome the surface charge limit while maintaining high beam polarization, which can be employed to meet the charge requirements of the Next Linear Collider with a polarization approaching 80%.
Journal ArticleDOI

An analytical description of longitudinal phase space distortions in magnetic bunch compressors

TL;DR: In this article, the authors considered a possible mechanism of strong distortions of longitudinal phase space due to collective effects in an electron bunch passing a bunch compressor and derived analytical expressions for the case of a linear compression.

Options for Future Colliders at CERN

TL;DR: In this paper, the authors discuss options for future colliders at CERN, after the LHC, which should address the burning problems of particle physics: mass, flavour and unification.
Journal ArticleDOI

Photovoltage effects in photoemission from thin GaAs layers

TL;DR: In this paper, a set of thin GaAs p-type negative electron affinity (NEA) photocathodes have been used to measure the yield of photoemitted electrons at high intensity excitation.
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