skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Shower counter resolution scaling

Abstract

The EM shower counter for the SDC detector has a resolution expression containing two stochastic terms plus a constant term. Recent measurements clarifying the sources of these terms are presented here. 3 refs., 4 figs.

Authors:
Publication Date:
Research Org.:
Argonne National Lab., IL (United States). High Energy Physics Div.
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10102688
Report Number(s):
ANL-HEP-TR-91-91
ON: DE92003460; IN: SDC-91-108
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 14 Oct 1991
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; SHOWER COUNTERS; ENERGY RESOLUTION; BENCHMARKS; SCALING LAWS; COST; ELECTROMAGNETIC INTERACTIONS; 440104; HIGH ENERGY PHYSICS INSTRUMENTATION

Citation Formats

Kirk, T.B.W. Shower counter resolution scaling. United States: N. p., 1991. Web. doi:10.2172/10102688.
Kirk, T.B.W. Shower counter resolution scaling. United States. doi:10.2172/10102688.
Kirk, T.B.W. 1991. "Shower counter resolution scaling". United States. doi:10.2172/10102688. https://www.osti.gov/servlets/purl/10102688.
@article{osti_10102688,
title = {Shower counter resolution scaling},
author = {Kirk, T.B.W.},
abstractNote = {The EM shower counter for the SDC detector has a resolution expression containing two stochastic terms plus a constant term. Recent measurements clarifying the sources of these terms are presented here. 3 refs., 4 figs.},
doi = {10.2172/10102688},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1991,
month =
}

Technical Report:

Save / Share:
  • The EM shower counter for the SDC detector has a resolution expression containing two stochastic terms plus a constant term. Recent measurements clarifying the sources of these terms are presented here. 3 refs., 4 figs.
  • Activities and accomplishments related to the Monte Carlo shower counter studies are summarized. A tape of the VMS version of the GEANT software was obtained and installed on the central computer at Gallaudet University. Due to difficulties encountered in updating this VMS version, a decision was made to switch to the UNIX version of the package. This version was installed and used to generate the set of data files currently accessed by various analysis programs. The GEANT software was used to write files of data for positron and proton showers. Showers were simulated for a detector consisting of 50 alternatingmore » layers of lead and scintillator. Each file consisted of 1000 events at each of the following energies: 0.1, 0.5, 2.0, 10, 44, and 200 GeV. Data analysis activities related to clustering, chi square, and likelihood analyses are summarized. Source code for the GEANT user subprograms and data analysis programs are provided along with example data plots.« less
  • We propose to conduct a short test to check the basic concepts used in the Total Absorption Shower Counter (TASC) being developed for the Alvarez cosmic-ray experiment (BCR-5) on the HEAO-B satellite. The objective is to ascertain whether the probability for an incoming proton of energy E {ge} 100 GeV to interact in the TASC and simulate the response due to an incoming e{sup {+-}} is smaller than 10{sup -4}. We will thereby obtain a preliminary estimate of whether the TASC should be able to distinguish incident e{sup {+-}} from incident protons to one part in 10{sup 4} over themore » BCR-5 momentum range from 5 to 10{sup 4} GeV/c.« less