Abstract
Large lead/scintillator sandwich-type photon detectors, sensitive to visible energy depositions of 1 MeV, have been built for the K L 0 → π 0 ν over(ν, -) experiment at the KEK 12-GeV proton synchrotron. The front barrel (FB) is composed of 16 modules with a length of 2.75 m, forming the 1.5 m-diameter cylinder. The main barrel (MB) is composed of 32 modules with a length of 5.5 m, forming a 3.5 m-diameter cylinder. Scintillation light is read out through wavelength-shifter (WLS) fibers. In this paper, the design, construction and performance of these detectors together with some R&D results are reported.
| Original language | English |
|---|---|
| Pages (from-to) | 261-272 |
| Number of pages | 12 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 592 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2008 Jul 21 |
| Externally published | Yes |
Bibliographical note
Funding Information:Construction of these large-scale vetoes within such a short time period would not have been possible without substantial contributions from technical staff members of collaborating institutes and companies. We express our sincere thanks to them. A mechanical design of the calorimeter was made by ENTEK-HTTC, Russia, under the ISTC (International Science Technology Center) program No. 2118. Part of this work was financially supported by a Grant-in-Aid for Scientific Research of the Ministry of Education, Science, Sports and Culture of Japan.
Keywords
- Kaon rare decay
- Lead/scintillator sandwich-type photon detector
- Wavelength-shifter (WLS) fiber readout
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation
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