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Weekly LS Meeting

In weekly meetings, JSPark and E.H.Kwon discuss LED PMT prototype design for the dark box. Detailed specifications and quantities are reviewed, including necessary chemicals and equipment to be used in production.

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Weekly LS Meeting

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  1. Weekly LS Meeting JSPark, E.H.Kwon

  2. 700 700 LED 2인치PMT 60.3 120 holder 50 165 105 300~400 1200 Dark box prototype design 단위 : mm

  3. Daya-bay : EHA, TMHA 100ml, Gd 0.1% 기준으로 제작을 할 때. 1 EHA : 0.102 ml 실험실 보유 : 20 ml 그간 결과 : 6EHA 까지 실패한 적 있음. 1 TMHA : 0.1006g 실험실 보유 없음. 가격이 비싸서 구입을 보류 했던 것으로 기억.

  4. Mock –up 용 필요한 LS list LAB : 2170 L MO : 6200 L PPO : 3 g/L * 2170 L = 6.51 kg Bis-MSB : 1/100 of PPO = 65.1 g GdR3 : 3.197 g/L * 170 L = 543.49 g HR : 6HR 이면 4.76 mL/L * 170 L = 809.2 mL TOPO : 2TOPO 이면 4.909 g/L * 170 L = 834.53 g TBP : 0.1M TBP 이면 27.26 mL/L * 170 L = 4.6342 L EHA : 6EHA 이면 6.12 mL/L * 170 L = 1.0404 L TMHA : 1TMHA 이면 1.002 g/L * 170 L = 170.34 g • 45 8-inch PMTs • Target : 170 ℓ •  Catcher : 2000 ℓ • Buffer : 6200 ℓ

  5. Daya Bay Double CHOOZ

  6. Reno Full 검출기 크기

  7. Full 검출기에 필요한 양 LAB : target(19700 L) + catcher(35200 L) = 54900 L MO : buffer(76900 L) Water : veto(201800 L) PPO : 54900 L * 3 g/L = 164.7 kg Bis-MSB : 1/100 of PPO = 1.647 kg GdR3(0.1%) : 3.197 g/L * 19700 L = 62.9809 kg *Ligand* HR : 6HR 일 때 4.76 mL/L * 19700 L = 93.772 L TOPO : 2TOPO 일 때 4.909 g/L * 19700 L = 96.7073 kg TBP : 0.1M TBP 일때 27.46 mL/L * 19700 L = 540.962 L EHA : 6EHA 일 때 6.12 mL/L * 19700 L = 120.564 L TMHA : 1TMHA 일 때 1.006 g/L * 19700 L = 19.8182 kg Reno는 동일한 검출기 2개 이므로 위 양에 2배가 필요

  8. 남은거 TMHA, EHA구입 TOPO 영향 조사: w/ TOPO, w/o TOPO 샘플의 att length, LY 측정 controlled sample 만들기: N2 효과 LT sample att length

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