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Comparison of Detector Sizes, Solvents, and Cost Estimation in GdLS Study

This document presents a summary of various parameters related to Gd-LS experiments, including detector size comparisons, solvent characteristics, cost estimation, and radiopurity. It covers findings from different experiments like Palo Verde, Double Chooz, Daya Bay, and RENO R&D, along with insights on Gd powder issues and LAB R&D results. It also includes information on the usage of ligands, radiopurity measurements, and single rates analysis between experiments.

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Comparison of Detector Sizes, Solvents, and Cost Estimation in GdLS Study

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  1. Summary of Various Parameters on Gd-LS  주경광(전남대) • 검출기 사이즈 비교 • 여러 solvent 특성 비교 • Cost estimation • LAB R&D 비교 • Ligand 사용양 • Radiopurity & Single rates • 기타 7th RENO Collaboration Meeting @SNU 2007-12-21

  2. 각 실험 검출기 크기 비교

  3. 여러 Solvent에 대한 일반적 성질

  4. 여러 배합과 사용시 문제점들 • Palo Verde: PC(40%)MO(60%)PPO(3g/l)bisMSB(50mg/l) +Gd(1g/l) • Double Chooz: PXE(20%)Dod(80%)PPO(3g/l)bisMSB(50mg/l) +Gd(1g/l) • Daya Bay: PC(20%)Dod(80%)PPO(3g/l)bisMSB(50mg) + Gd(1g/l) • RENO R&D: LAB(100%)PPO(3g/l)bisMSB(50mg/l) + Gd(1g/l)

  5. Solvent 정제 결과 • Borexino: PXE(4.4m, Koch company, USA 제품) RENO (Fisher, 일본산) • BNL: LAB의 attenuation length ~20m (Petresa 제품)

  6. Cost Estimation

  7. Gd Powder Issue Radiopurity • Gd2O3: U/Th concentrations are lower than 2x10-10 g/g and 3x10-10g/g • The concentrations of some others elements are: Pb: 1.4x10-6g/g Er: 1.5x10-7g/g Ho: 1.1x10-7g/g Dy: 1.5x10-6g/g Eu: 2.1x10-7g/g Sm: 7.6x10-8g/g Nd: 3.3x10-8g/g Pr: 3.8x10-9g/g La: 2.3x10-7g/g • The concentrations of the others elements are lower of limits of identifications

  8. LAB R&D 결과

  9. NIM-A 2007.09.044 Summary of Daya Bay paper

  10. GdR3 + Ligand 사용량

  11. (공대정박사) Radiopurity & Single rates between different Experiments

  12. (이재승박사)

  13. 문서화된 내용들 • How to use spectrometer • - Preparation Cuvette • - Procedure to measure attenuation length • Radiopurity 측정을 위한 sample preparation procedure • Gd-loading 일반적 내용 (Galina 방문 결과 요약) • Gd 적정법 (Nikolay 방문 결과 요약) • Gd-loading chemistry (Eugeny 방문 결과 요약) • TDR-LS part • 여러 가지 샘플에 대한 attenuation length 측정 결과표 • wiki web page에 upload 할 예정 • 결론 • 여기저기 흩어져 있는 LS 관련 숫자들의 일괄적인 통합 • TDR LS 부분 숫자와 그림 update

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