A steel-scintillator calorimeter has been designed to be used in a 250 GeV photon beam, and consists of approximately 10 nuclear absorption lengths of steel. Its sampling frequency is 1.5" and the sampling medium is 1/4" Kyowa SCSN-61T polystyrene based scintillator. Y7 Kyowa WLS was used to collect light into 8 Hamamatsu R2154 photomultipliers.
A monitoring system has been built for the calorimeter. A LSI UV laser pumps a sample of SCSN-61T, which emits light that is subsequently shifted by Y7 and transported to the PM's via jacketted 1 mm acrylic fibers. It simulates the passage of a charged particle. A PIN photodiode also monitors the light output, for cross reference with the PM's.
Interspersed among the steel and scintillator, there are 6 PWC's whose purpose is to discriminate between electromagnetic and hadronic showers. Some position information can be gathered. The PWC inter-wire spacing is approximately 1 cm. (Abstract shortened with permission of author.)
| Identifer | oai:union.ndltd.org:RICE/oai:scholarship.rice.edu:1911/13449 |
| Date | January 1990 |
| Creators | Lincoln, Don |
| Contributors | Corcoran, Marjorie |
| Source Sets | Rice University |
| Language | English |
| Detected Language | English |
| Type | Thesis, Text |
| Format | 123 p., application/pdf |
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