r&d activities and plan changgen yang institute of high energy physics beijing
TRANSCRIPT
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R&D Activities and Plan
Changgen YangInstitute of High Energy
PhysicsBeijing
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Daya
LingAo
LingAo2(2010?)
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Design 1 (No LingAo2)
Daya
LingAo
Near Detector distance: 650m overburden: ~100mFar Detector dist.(Daya) : 2240m dist.(LingAo): 1860m overburden: ~420m (overburden: 160m)
Overburden: 160m
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Design 2 (With LingAo2)
Daya
LingAo
Near Detector(Both) distance: 500m overburden: 95mFar Detector dist.(Daya) : 2240m dist.(LingAo): 1860m overburden: ~420m (overburden: ~200m)
Overburden: ~200m
LingAo2
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Liquid Scintillator
1. Palo Verde type: Gd(0.1%) + PC(40%) + n-paraffin(60%)
2. GdCl3 + fluor + Organic solvent High Gd : 5-10% (no Ge seperation) Stable Easy mixing High H/C ratio
Light attenuation length(?, further investigation)On-line purification and dust removal(?)
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Liquid Scintillator Tank
1. Normal acrylic painted with epoxy to resiste the pseudocumene
2. Epoxy mould
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Out Tank
1. Polyethylene rotomolding2. Glass fibre reinforced plastic
MC simulation(detector design), calibration, trigger etc.
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A Prototype(1:1) with normal 8” PMT
• Experience on the Gd loaded scintillator
• Performance of the module• Calibration• Tank mechanics
• Experience on ……
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PMT s.p.e.