Why superferric magnets for a desertron

It has been proposed by R.R. Wilson and L. Lederman that it may be advantageous and cheaper to construct a large accelerator (> 10 TeV) with superferric magnets (approx. 2.5 Tesla). We take as a premise that a sufficiently large piece of land is available for the accelerator (see paper on Site and Tunnel), that is, one is not limited by the radius of the tunnel. The word superferric has been interpreted to mean a super conducting magnet where the coils are used principally to drive the field in the steel. We also add the constraint of simplicity and keep the coil shaped in a rectangle with no more than a few turns

20-TeV Colliding Beam Facilities

In March, a workshop was held at Cornell University on the accelerator. The conclusion of this workshop was that a 20 TeV on 20 TeV proton-proton collider is technically feasable, that construction could begin after 2.5 to 4 years of research and development, and the cost would be 1.3 to 2 billion dollars. To put this machine into perspective one must consider the existing facilities listed in table I. There are about 23 high energy physics laboratories in the world that are being operated or constructed. Most of these labs have an effective energy of less than 100 GeV and study principally the known quarks and leptons. The only accelerator operating at an effective energy greater than 100 GeV is the CERN proton-antiproton system. As has been presented at this conference in other papers their success has been great in a very short time, the discovery of the vector bosons W and Z. The only machine approved that will have an effective energy greater than 1000 GeV is the Russian accelerator UNK. The effective energy of a 20 TeV on 20 TeV proton-proton collider would be about 15 TeV

Potential 20-TeV site in Illinois - Dekalb

The Batavia, Illinois location has all the necessary requirements for a major high energy physics laboratory, i.e., near a major airport and road system, many good universities within driving distance, a large pool of technical people in the area, all types of industry nearby, and centrally located. Even with these characteristics usually associated with urban areas, there also exists nearby open land where perhaps a 20 TeV collider could be located. Preliminary studies are being made of potential sites in Illinois for a 20 TeV collider. The largest ring that has been looked at has a 25 kilometer radius (30 mile diameter). This was picked since the lowest magnetic field (3 Tesla) would give 20 TeV and smaller rings should be easier to accommodate. The motivation for the siting of this ring was to find a location near Fermilab so that the infrastructure could be used including the Energy Doubler as an injector. One ring considered went through Fermilab and out toward the west. The obvious advantage of this ring would be to have the experimental areas on the Fermilab site. The difficulty with this ring is that it must be quite deep to pass under the Fox river twice. At this time we have only looked in some detail at a site west of the Fox river with an injection line from Fermilab that passes under the river. We call this ring the Dekalb site

Tunnel construction for a desertron

The tunnel in this model of construction is 3-1/2 feet wide by 5 feet high. It is assumed that the tunnel contains a rail system and guidance system for: (1) An enclosed car used for transport of 2 people and some tools. (2) A magnet mover. This robot could pick up a magnet and transport it at about 10 miles per hour. (3) An alignment robot. The alignment robot would intercept E.M. waves (microwaves, lasers) to determine its position in the tunnel. Then workers could come along inside the tunnel hoop and nail it together and to the floor. The trench would then be back-filled with a 1 foot berm on top. A rail system would be installed and a support stand for the magnet

Proposal to Study Dilepton Neutrino Interactions with the Triplet Quadrupole Beam, the Phase 1 EMI, and the 15' Bubble Chamber Filled with a H-Ne Mixture

The authors propose to study dilepton neutrino events in the 15-foot bubble chamber using the quadrupole beam. The chamber is filled with at least 80% neon (15 ton fiducial target), the EMI is rearranged into 2 planes to give at least 7 absorption lengths for muon identification and give time coincidence, and the beam has a 1 millisecond spill. This will give about 150 dimuon events and 150 muon electron events per 100,000 pictures. They request 200,000 pictures

Transport properties of a discrete helical electrostatic quadrupole

The helical electrostatic quadrupole (HESQ) lens has been proposed as a low energy beam transport system which permits intense H{sup {minus}} beams to be focused into an RFQ without seriously increasing the beam's emittance. A stepwise continuous HESQ lens has been constructed, and preliminary tests have shown that the structure does provide focusing. In order to understand the transport properties of this device, further detailed studies have been performed. Emittances were measured 3.5 cm from the end of the HESQ at two different voltages on the HESQ electrodes. A comparison of these experimental results with a linear model of the HESQ beam transport is made. 4 refs., 5 figs