nu xusiccas, shanghai, nov. 15-16, 20051 siccas visit ioan dafinei (rome) andrea giuliani (como)...
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![Page 1: Nu XuSICCAS, Shanghai, Nov. 15-16, 20051 SICCAS visit Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore) Ezio Previtali (Milano) Nu Xu](https://reader035.vdocuments.net/reader035/viewer/2022070418/56649efa5503460f94c0cb30/html5/thumbnails/1.jpg)
Nu Xu SICCAS, Shanghai, Nov. 15-16, 2005 1
SICCAS visit
Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore)Ezio Previtali (Milano) Nu Xu (Berkeley)
- Background in TeO2 powder- Crystal dimension accuracy- Mass production and storage
![Page 2: Nu XuSICCAS, Shanghai, Nov. 15-16, 20051 SICCAS visit Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore) Ezio Previtali (Milano) Nu Xu](https://reader035.vdocuments.net/reader035/viewer/2022070418/56649efa5503460f94c0cb30/html5/thumbnails/2.jpg)
Nu Xu SICCAS, Shanghai, Nov. 15-16, 2005 2
The Technical Process of TeO2 Raw Materials
二氧化碲原料处理工艺流程图
Te
过滤Filtration
化学反应 : TeO2+HCl→TeCl4+H2O
Chemical reaction
洗涤Washing
TeO2
化学反应 : 2Te+9HNO3 → Te2O3(OH)NO3+8NO2+4H2O
Chemical reaction: Te2O3(OH)NO3→2 TeO2+HNO3
洗涤Washing
干燥去Dryness
离心Removing water
洗涤Washing
化学反应 : TeCl4+4NH4OH→Te(OH)4+4NH4Cl
Chemical reaction: Te(OH)4→TeO2+H2O
HNO3
HClNH4OH
Water sample and filter brought back to Milano for background check
![Page 3: Nu XuSICCAS, Shanghai, Nov. 15-16, 20051 SICCAS visit Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore) Ezio Previtali (Milano) Nu Xu](https://reader035.vdocuments.net/reader035/viewer/2022070418/56649efa5503460f94c0cb30/html5/thumbnails/3.jpg)
Nu Xu SICCAS, Shanghai, Nov. 15-16, 2005 3
Preparing Pt Material
ZengWei Ge
![Page 4: Nu XuSICCAS, Shanghai, Nov. 15-16, 20051 SICCAS visit Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore) Ezio Previtali (Milano) Nu Xu](https://reader035.vdocuments.net/reader035/viewer/2022070418/56649efa5503460f94c0cb30/html5/thumbnails/4.jpg)
Nu Xu SICCAS, Shanghai, Nov. 15-16, 2005 4
Pt Crucible
![Page 5: Nu XuSICCAS, Shanghai, Nov. 15-16, 20051 SICCAS visit Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore) Ezio Previtali (Milano) Nu Xu](https://reader035.vdocuments.net/reader035/viewer/2022070418/56649efa5503460f94c0cb30/html5/thumbnails/5.jpg)
Nu Xu SICCAS, Shanghai, Nov. 15-16, 2005 5
Preparing Crystals
![Page 6: Nu XuSICCAS, Shanghai, Nov. 15-16, 20051 SICCAS visit Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore) Ezio Previtali (Milano) Nu Xu](https://reader035.vdocuments.net/reader035/viewer/2022070418/56649efa5503460f94c0cb30/html5/thumbnails/6.jpg)
Nu Xu SICCAS, Shanghai, Nov. 15-16, 2005 6
Crystals Growing
Remove dirt
Grew crystals
Material preparing
- 9 week/circle- several TeO2
- lower T to reduce Pt
- few months after contract batches of TeO2 shipping possible- 18-24 months to finish 1000 crystals- accuracy: 0.05mm- SINAP: 50m well mass storage
![Page 7: Nu XuSICCAS, Shanghai, Nov. 15-16, 20051 SICCAS visit Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore) Ezio Previtali (Milano) Nu Xu](https://reader035.vdocuments.net/reader035/viewer/2022070418/56649efa5503460f94c0cb30/html5/thumbnails/7.jpg)
Nu Xu SICCAS, Shanghai, Nov. 15-16, 2005 7
Production Site - Jiading
Scientific Satellite City: Jiading
- Nuclear research institute: SINAP - SICCAS production site - Shanghai University … ~ One hr. drive from downtown
CAS Shanghai branch
![Page 8: Nu XuSICCAS, Shanghai, Nov. 15-16, 20051 SICCAS visit Ioan Dafinei (Rome) Andrea Giuliani (Como) Eric Norman (Livermore) Ezio Previtali (Milano) Nu Xu](https://reader035.vdocuments.net/reader035/viewer/2022070418/56649efa5503460f94c0cb30/html5/thumbnails/8.jpg)
Nu Xu SICCAS, Shanghai, Nov. 15-16, 2005 8
Summary
• SICCAS: professional, very cooperative
• Site: Easy access, friendly people, good food