[en] A cerenkov counter design is given for operation in a 500 GeV/c secondary beam with 10⁹ to 10¹¹ particles per 1 millisecond spill. The design allows the fractions of pions, kaons and protons to be determined. In particular the fraction of kaons should be measured with a relative accuracy of a few percent

[en] The Pion Proton Charge Exchange (CEX) defferential cross section was measured at fourteen beam momenta from 6987 MeV/c to 247 MeV/c. The neutrons were detected at nine angles ranging from -.8 to +.8 in the cosine of the pi-zero center of mass angle, and on or both of the pi-zero decay gammas were detected. The neutrons were detected at each angle by a pair of cylindrical plastic (NE110) scintillation counters. These counters were calibrated in a separate series of measurements. The photons were detected in either of two photon detectors. Each of the detectors used a thin lead sheet to convert the photons into an electron shower and then used both wire chambers and double ended scintillation counters to locate the shower. The detectors were calibrated in a separate tagged photon study and the acceptance of the detectors was found with a Monte Carlo usng the calibration results and the results of a shower Monte Carlo. The cross sections are tabulated listing separately the angular dependent and normalization uncertainty at each beam momentum

No abstract available

[en] A special task force was appointed to study the experience with the present beamline control system at Fermilab and to make recommendations in this area. The charge of the committee and the list of its members are appended. In order to carry out its assignment, the committee conducted a series of meetings in which it discussed the controls situation in general and the best way to approach the user community. The various groups of users were identified, and a letter was written to representatives of these groups asking questions concerning the present system and future needs. The committee met with each group to discuss the response to these questions. Written summaries of the discussions are appended. Conclusions are drawn regarding current problems, systematic upgrades and specific recommendations

[en] We have measured the detection efficiency of a large solid angle photon detector, using a tagged, monochromatic photon beam. The detector consists of a lead converter of thickness 1.7 radiation lengths, a multiwire proportional chamber and counters. Efficiencies were measured at eleven photon energies between 25 and 234 MeV/c. The systematic uncertainties were minimized by measuring the photon tagging efficiencies using a large NaI counter. The overall uncertainties in the detection efficiencies are <= 2%. We compare the results with values calculated for the efficiencies using the Stanford EGS Monte Carlo code. Agreement between the measured and calculated values is excellent. (orig.)

[en] Differential cross sections for πsup(+-) p -> πsup(+-)p have been measured at Psub(π) between 378 and 687 MeV/c at 9 angles in the range -0,8 <= cos thetasub(c.m) <= 0.6. Scattered pions and recoil protons were detected in coincidence using scintillation counter hodoscopes. For almost all of the data the statistical and normalization uncertainties are each less than 2%. Our measurements are compared with existing data and the results of recent partial wave analyses. (orig.)

[en] The D0 detector has over 100000 input channels and over 7000 printed circuit boards distributed across seven major systems. This paper describes some of the hardware and software tools that are being developed to aid in installing and commissioning the detector electronics up to the level-2 trigger system. (orig.)

No abstract available

[en] This paper reports on the longitudinal particle punchthrough probability from shower cascades produced by hadrons incident on the iron-scintillator calorimeter of the CCFR neutrino detector. Measurements of the dE/dx energy loss in Fe of high energy cosmic ray muons (up to 1 TeV) incident on the same detector are presented and compared against calculations

[en] The wide-band, high energy neutrino beam at the Fermilab Tevatron has made possible the observation of several electroweak processes with relatively high statistics. We present here measurements of μe^- → μ^-ν_e (inverse muon decay, IMD), ν_μN → μ^-Nμ⁺ν_μ (coherent trilepton production, CTP), and also a search for ν_μN → XΝ_μ → Xμ⁺μ^-ν_μ (a particular case of neutral heavy lepton, NHL). These data are from a preliminary analysis of 670,000 neutrino- and 124,000 antineutrino scattering events, with visible energy in the range 30-600 GeV, observed by experiment FNAL E744, the CCFR Collaboration. (orig.)