119387313
Charged hadron production at high X in E+ E- annihilation at S**(1/2) = 29-GEV
120023840
Study of two photon production of rho0 omega in e+ e- interactions
120827387
A measurement of A20 (1320) formation in photon photon collisions
125894282
BOSE-EINSTEIN CORRELATIONS OF PIONS IN e+ e-ANNIHILATION AT 29-GeV CENTER-OF-MASS ENERGY
121878723
Studies of parton fragmentation and baryon production with the TPC at PEP
Results are presented from the TPC on the analysis of 3-jet events, on the width of gluon jets versus quark jets, and on proton and lambda production and correlations.
123050118
$f1(1285)$ formation in photon photon fusion reactions
Abstract We have observed formation of the f 1 (1285) in the reaction e + e - →e + e - π + π - η ( η → γγ ). Its γγ ∗ width is determined in several Q 2 bins. The γγ coupling parameter for the f 1 (1285) is found to be 2.4±0.5±0.5 keV. This value is compared to that for the X (1420), another J =1 state formed in γγ fusion reactions, which may belong to the same meson nonet.
28264159
Magnets in the PEP Injection Lines
The electron and positron beams from the Stanford two-mile linear accelerator are brought to the PEP storage ring via two beam-transport lines, each about 225 meters in length. The beam pulses intended for PEP are switched out of the SLAC beam line by a pair of pulsed dipole bend magnets, which deflects them downward into a d.c. dipole magnet, where positron beams are bent into the south line and electrons into the north. See Figure 1. Each line beyond this common d.c. magnet contains 10 principal dipole magnets and 24 d.c. quadrupole magnets. The common "beam-splitter" magnet and the last dipole in each line are iron-septum ("Lambertson"-type) magnets, in which regions of strong and weak magnetic field are separated by thin iron septa. The other magnets are of a more conventional design but have design features with cost or size advantages.
111218115
Controlling Accelerator Engineering Costs
Cost control for accelerator engineering involves task definition, planning related expenditures, measuring progress, tabulation of costs and projections, and, most important of all, follow-up for corrections. Accelerator engineering costs are best regulated by the accelerator engineer, since those who are in any way detached from the work cannot exercise the most effective control. The accelerator engineer should be assisted by providing him with an effective system, appropriate forms and reports, and administrative support.
109159306
Program plan for the MBE-4 multiple beam experiment
The technical description treats the arrangement of the Injector System (made up of an existing High Voltage Marx Generator, a new Four-beam Source array and a Beam Conditioning Unit for matching and steering) and the Accelerator Apparatus which contains the 24 shaped-pulsed accelerating units. Flexibility in diagnostic capability and physics experiments has been maintained insofar as possible.
26156010
An electron accelerator for tunneling through hard rock
Earlier work1-3 demonstrated that intense sub-microsecond bursts of energetic electrons cause significant pulverization and spalling of a variety of rock types. The spall debris generally consists of sand, dust, and small flakes. If carried out at rapid repetition rate, this can lead to a promising technique for increasing the speed and reducing the cost of underground excavation of tunnels, mines and storage spaces. The conceptual design features of a Pulsed Electron Tunnel Excavator capable of tunneling approximately ten times faster than conventional drill/blast methods are presented with primary emphasis on the electron accelerator and only a brief description of the tunneling aspects. Of several candidate types of accelerators, a linear induction accelerator producing electron pulses (5 MV, 5 kA, 1.0 μs = 25 kJ) at a 360 Hz rate was selected for the conceptual example. This provides the required average electron beam power output of 9 MW. The feasibility of such an accelerator is discussed.