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Study of the effects induced by lead on the emulsion films of the OPERA experiment
- Source :
- Journal of Instrumentation, Journal of Instrumentation, IOP Publishing, 2008, 3, pp.P07002. ⟨10.1088/1748-0221/3/07/P07002⟩
- Publication Year :
- 2008
- Publisher :
- HAL CCSD, 2008.
-
Abstract
- The OPERA neutrino oscillation experiment is based on the use of the Emulsion Cloud Chamber (ECC). In the OPERA ECC, nuclear emulsion films acting as very high precision tracking detectors are interleaved with lead plates providing a massive target for neutrino interactions. We report on studies related to the effects occurring from the contact between emulsion and lead. A low radioactivity lead is required in order to minimize the number of background tracks in emulsions and to achieve the required performance in the reconstruction of neutrino events. It was observed that adding other chemical elements to the lead, in order to improve the mechanical properties, may significantly increase the level of radioactivity on the emulsions. A detailed study was made in order to choose a lead alloy with good mechanical properties and an appropriate packing technique so as to have a low enough effective radioactivity.<br />Comment: 19 pages, 11 figures
- Subjects :
- Physics - Instrumentation and Detectors
Materials science
Physics::Instrumentation and Detectors
Nuclear engineering
RIVELATORI DI PARTICELLE
FISICA DEL NEUTRINO
FOS: Physical sciences
Particle identification methods
Tracking (particle physics)
01 natural sciences
law.invention
Particle identification method
law
Particle tracking detectors
0103 physical sciences
Nuclear emulsion
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Detectors and Experimental Techniques
Nuclear Experiment
010306 general physics
Lead (electronics)
Neutrino oscillation
Instrumentation
Mathematical Physics
Large detector systems for particle and astroparticle physics
010308 nuclear & particles physics
Hybrid detector
RADIOATTIVITÀ NATURALE DI BASSO LIVELLO
Detector
Hybrid detectors
Instrumentation and Detectors (physics.ins-det)
Particle tracking detector
3. Good health
Condensed Matter::Soft Condensed Matter
Large detector systems for particle and astroparticle physic
Emulsion
RIVELATORI IBRIDI
Neutrino
Cloud chamber
Subjects
Details
- Language :
- English
- ISSN :
- 17480221
- Database :
- OpenAIRE
- Journal :
- Journal of Instrumentation, Journal of Instrumentation, IOP Publishing, 2008, 3, pp.P07002. ⟨10.1088/1748-0221/3/07/P07002⟩
- Accession number :
- edsair.doi.dedup.....7c8c8b9bfa6a490c74f1229cef4a9900