Title :
High Enery Electromagnetic Shower Position Measurement by a Fine Grained Scintillation Hodoscope
Author :
Cox, B. ; Hale, G. ; Mazur, P.O. ; Wagner, R.L. ; Wagoner, D.E. ; Areti, H. ; Conetti, S. ; Lebrun, P. ; Ryan, T. ; Gearhart, R.A.
Author_Institution :
Fermi National Accelerator Laboratory P.O. Box 500 Batavia, Illinois 60510
Abstract :
We have measured the centroids of high energy electromagnetic showers initiated by positrons in the energy range 2 to 17.5 GeV with a fine grained scintillation hodoscope composed of seven 1 cm wide elements placed behind a 3.6 radiation length (15 cm) converter composed of SCG1-C scintillation glass. A simple first moment calculation using the ionization observed in each element of this hodoscope yields a shower position resolution as a function of energy of: ¿(mm) ¿ 0.7 ± 5.6/¿E(GeV). We present results on the energy dependence of the shower profiles and the ionization measured by this hodoscope.
Keywords :
Electromagnetic measurements; Electromagnetic radiation; Energy measurement; Fingers; Glass; Ionization; Position measurement; Positrons; Radiation detectors; Testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1983.4332235
