Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The turnon experience and initial operating parameters of the SLAC Linear Collider positron source are described. 6 refs., 7 figs.
SLC (SLAC Linear Collider) Positron Source Startup
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The turnon experience and initial operating parameters of the SLAC Linear Collider positron source are described. 6 refs., 7 figs.
Physics at the SLC (SLAC Linear Collider).
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 53
Book Description
The SLAC Linear Collider (SLC) was constructed in the years 1983--1987 for two principal reasons: to develop the accelerator physics and technology that are necessary for the construction of future linear electron-positron colliders; and to produce electron-positron collisions at the Z° pole and to study the physics of the weak neutral current. To date, the SLC program has been quite successful at achieving the first goal. The machine has produced and collided high energy electron and positron beams of three-micron transverse size. The problems of operating an open geometry detector in an environment that is more akin to those found in fixed-target experiments than in storage rings have largely been solved. As a physics producing venture, the SLC has been less successful than was originally hoped but more successful than is commonly believed. Some of the results that have been produced by the Mark II experiment with a very modest data sample are competitive with those that have been produced with much larger samples by the four LEP collaborations. At the current, time, SLAC is engaged in an ambitious program to upgrade the SLC luminosity and to exploit one of its unique features, a spin polarized electron beam. These lectures are therefore organized into three sections: a brief description of the SLC; a review of the physics results that have been achieved with the Mark II detector; a description of the SLC's future: the realization and use of a polarized electron beam.
Progress Report on the SLAC Linear Collider
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In this paper we report on the status of the SLAC Linear Collider (SLC), the prototype of a new generation of colliding beam accelerators. This novel type of machine holds the potential of extending electron-positron colliding beam studies to center-of-mass (c.m.) energies far in excess of what is economically achievable with colliding beam storage rings. If the technical challenges posed by linear colliders are solvable at a reasonable cost, this new approach would provide an attractive alternative to electron-positron rings, where, because of rapidly rising synchrotron radiation losses, the cost and size of the ring increases with the square of the c.m. energy. In addition to its role as a test vehicle for the linear collider principle, the SLC aims at providing an abundant source of Z° decays to high energy physics experiments. Accordingly, two major detectors, the upgraded Mark II, now installed on the SLC beam line, and the state-of-the-art SLD, currently under construction, are preparing to probe the Standard Model at the Z° pole. The SLC project was originally funded in 1983. Since the completion of construction, we have been commissioning the machine to bring it up to a performance level adequate for starting the high energy physics program. In the remainder of this paper, we will discuss the status, problems and performance of the major subsystems of the SLC. We will conclude with a brief outline of the physics program, and of the planned enhancements to the capabilities of the machine. 26 refs., 7 figs.
SLAC Linear Collider
Author: Stanford Linear Accelerator CenterPublisher:
ISBN:
Category : Linear accelerators
Languages : en
Pages : 208
Book Description
Energy Research Abstracts
Author: Proceedings of the SLC Workshop on Experimental Use of the SLAC Linear Collider
Author: A Possible Design for the NLC E Source
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
The Next Linear Collider (NLC) currently under investigation at SLAC requires a positron source with a flux of about 8.6 x 1013 particles per second, 14.4 times more than the SLC source. Based on the SLC experience, a source for NLC is proposed that can be realized with present accelerator technology. It consists of a 7 GeV S-band electron linac, a solid moving target, a 1.8 GeV L-band positron accelerator and a pre-damping ring with a large acceptance. The pre-damping ring performs positron accumulation and the matching of the positron source emittance to the NLC main damping ring acceptance. The scheme and parameters of the NLC positron source are given and the expected source performance is computed.
The High-gradient S-band Linac for Initial Acceleration of the SLC (SLAC Linear Collider) Intense Positron Bunch
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Although short lengths of S-band standing-wave, disk-loaded waveguide have been successfully RF-processed to accelerating gradients equivalent to about 175 MeV/m in a traveling-wave structure, the 20 MeV/m gradient of the SLC 50 GeV linac has been the highest gradient S-band accelerator in operation. However, the 1.5 m traveling-wave constant impedance capture section for the SLC positron source, operating with a dedicated 60 MW klystron, is now routinely accelerating single-bunch beams of more than 7 x 101° e/pulse at rates of up to 60 Hz with an accelerating gradient section are described. 11 refs., 1 fig. 1 tab.
A Possible Design for the NLC E Sup + Source
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
The Next Linear Collider (NLC) currently under investigation at SLAC requires a positron source with a flux of about 8.6 x 1013 particles per second, 14.4 times more than the SLC source. Based on the SLC experience, a source for NLC is proposed that can be realized with present accelerator technology. It consists of a 7 GeV S-band electron linac, a solid moving target, a 1.8 GeV L-band positron accelerator and a pre-damping ring with a large acceptance. The pre-damping ring performs positron accumulation and the matching of the positron source emittance to the NLC main damping ring acceptance. The scheme and parameters of the NLC positron source are given and the expected source performance is computed.
Unique Radiation Problems Associated with the SLAC Linear Collider
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The SLAC Linear Collider (SLC) is a variation of a new class of linear colliders whereby two linear accelerators are aimed at each other to collide intense bunches of electrons and positrons together. Conventional storage rings are becoming ever more costly as the energy of the stored beams increases such that the cost of two linear colliders per GeV is less than that of electron-positron storage rings at cm energies above about 100 GeV. The SLC being built at SLAC is designed to achieve a center-of-mass energy of 100 GeV by accelerating intense bunches of particles, both electrons and positrons, in the SLAC linac and transporting them along two different arcs to a point where they are focused to a small radius and made to collide head on. The SLC has two main goals. The first is to develop the physics and technology of linear colliders. The other is to achieve center-of-mass energies above 90 GeV in order to investigate the unification of the weak and electromagnetic interactions in the energy range above 90 GeV; (i.e., Z°, etc.). This note discusses a few of the special problems that were encountered by the Radiation Physics group at SLAC during the design and construction of the SLAC Linear Collider. The nature of these problems is discussed along with the methods employed to solve them.