THE APPLICATION OF THIN-PLATE SPARK CHAMBERS TO HIGH-ENERGY $pi$-p EXPERIMENTS

Journal Article · Tue Jan 01 00:00:00 EST 1963 · Nucl. Instr. Methods

DOI:https://doi.org/10.1016/0029-554X(63)90422-1· OSTI ID:4709775

Bleuler, E; Caldwell, D O; Elsner, B; Harting, D; Jones, L W; Middelkoop, W C; Zacharov, B; Perl, M L; Ting, C C

Experiments on elastic pion-proton scattering and peripheral production of pions are described as illustrations of techniques involved in use of spark chambers. Features specifically pointed out include the following: use of thin- plate spark chambers spaced by some distance to sample two portions of a track in order to determine the angle of a track to a high precision; folding of the images of the several spark chambers and their stereoscopic views using a number of mirrors in order to present all the chamber data on a single 35-mm film frame; a method of aligning mirrors accurately based on the auto-collimation principle; a method of eliminating stereo ambiguity in cases where two tracks completely traverse a chamber without taking a third view. In general, use of spark chambers in these experiments corresponds to a sampling of particie trajectories in contrast to applications where an entire event is recorded as continuous tracks. (A.G.W.)

• Research Organization: CERN, Geneva
• NSA Number: NSA-17-023663
• OSTI ID: 4709775
• Journal Information: Nucl. Instr. Methods, Journal Name: Nucl. Instr. Methods Vol. Vol: 20
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ENERGY
ENERGY RANGE
INSTRUMENTS AND INSTRUMENTATION
PARTICLE TRACKS
PIONS
PLATES
PROTONS
REFLECTION
SCATTERING
SPARK CHAMBERS