Performance of the SLAC 2-meter streamer chamber in a study of multibody photoproduction

Abstract

The performance of the SLAC 2-meter streamer chamber is evaluated using the results of a high-statistics, multibody-photoproduction experiment carried out with an 18 GeV bremsstrahlung beam.The instrumental arrangement is outlined, and the data-analysis procedures are described in detail. Special methods are then discussed for dealing with trigger, dip-angle, and hydrogen-target losses and for weighting the surviving events. Finally, the spatial resolution, instrumental efficiency, and overall normalization accuracy are given, and the momentum range over which particle types can be distinguished by ionization is specified. The results of this evaluation indicate that the streamer chamber is successful in combining the high geometrical resolution, excellent multipletrack efficiency, nearly 47~ solid angle, and ionization capabilities of the bubble chamber with the high repetition rate and triggering facility of the spark chamber.

Charged particle spectra in [sup 32]S + [sup 32]S interactions at 200 GeV/nucleon from CCD-imaged nuclear collisions in a streamer chamber

“…In Ref. Fri73 , a similar effect was attributed to an error in the beam direction. The charge-dependent bias in the azimuth 4> actually has an equivalent effect on both positively and negatively charged particles.…”

Charged particle spectra in ³²S + ³²S interactions at 200 GeV/nucleon from CCD-imaged nuclear collisions in a streamer chamber

“…In Ref. Fri73, a similar effect was attributed to an error in the beam direction. The charge-dependent bias in the azimuth </> actually has an equivalent effect on both positively and negatively charged particles.…”