R&D Activities and Plan Changgen Yang Institute of High Energy Physics Beijing.

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Presentation transcript:

R&D Activities and Plan Changgen Yang Institute of High Energy Physics Beijing

Daya LingAo LingAo2 (2010?)

Design 1 (No LingAo2) Daya LingAo Near Detector distance: 650m overburden: ~100m Far Detector dist.(Daya) : 2240m dist.(LingAo): 1860m overburden: ~420m (overburden: 160m) Overburden: 160m

Design 2 (With LingAo2) Daya LingAo Near Detector(Both) distance: 500m overburden: 95m Far Detector dist.(Daya) : 2240m dist.(LingAo): 1860m overburden: ~420m (overburden: ~200m) Overburden: ~200m LingAo2

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(?)

Liquid Scintillator Tank 1.Normal acrylic painted with epoxy to resiste the pseudocumene 2.Epoxy mould

Out Tank 1.Polyethylene rotomolding 2.Glass fibre reinforced plastic MC simulation(detector design), calibration, trigger etc.

A Prototype(1:1) with normal 8” PMT Experience on the Gd loaded scintillator Performance of the module Calibration Tank mechanics Experience on ……

PMT s.p.e.