IBDsingles JUNO JUNO Preliminary estimation has been updated
主要 作:江门中微子实验 • 作为主要人员参加江门中微子实验, – – 参与实验灵敏度计算; 初步计算探测器不同组成部分对反应堆IBD事例singles及关联本底的贡献及要求; 组织JUNO模型探测器的讨论,筹备模型探测器实验; JUNO黄皮书散射超新星中微子章节的编撰人之一 Preliminary estimation, has been updated by simulaiton. Event/day B/S Note Dead time/volume Or 40 / / / 40 Geo neutrino ~1. 5 ~3. 75%± 1. 8% / / ~1. 5(3. 75%± 1. 8%) Cosmic related <1. 2 <3%± 1. 5% No relationship to detector option ? <1. 2 (3%± 1. 5%) LS (a, n) <4 <10%± 1% No relationship to detector option / <1 (2. 5%± 0. 2%) LS (singles) <1 <2. 5%± 0. 02% No relationship to detector option / <1 (2. 5%± 0. 02%) PMT(singles) <20 <50%± 0. 5% Can be reduced by offline cuts ? <1 (2. 5%± 0. 02%) Nylon film(singles) <1 <2. 5%± 0. 02% Can be reduced by offline cuts ? <1 (2. 5%± 0. 02%) Acrylic (singles) <20 <50%± 0. 5% Can be reduced by offline cuts ? <1 (2. 5%± 0. 02%) 6 signal
Calculation 液 闪漏率: <0. 047 cc/ s; 气体漏率: ~1. 5 cc/ s SF 6 in Nylon bag: 1 e 5 ppm@ 1 mbar, ~2150 m 3, ~13 t, ~1. 3 MYu an 0. 01 ppm 0. 1 ppm 10 ppm 100 ppm 0. 002 cc/s 3. 5 day 35 day 0. 95 year 100 year 0. 01 cc/s 17 h 7 day 71 day 1. 9 year 20 year 0. 1 cc/s 1. 7 h 17 h 7 day 71 day 1. 9 year 1 cc/s 10 min 1. 7 h 17 h 7 day 71 day 1, 00 E+08 1, 00 E+07 measured 1 mg in day 1, 00 E+05 1, 00 E+04 level 1 mg in day 1, 00 E+03 1, 00 E+02 model 1 mg in day � � 公 量 � 室 室 同 位 素 我 � 号 暗 大 � 十 万 四 四 号 � 万 � � 号 三 2号 � 百 千 � � ss 10 cla ss 1 1, 00 E+01 cla 不同洁净 度下空气 灰尘含量 1 mg in day 1, 00 E+06 8
近 5年文章发表情况 1. Study of a Prototype Detector for the Daya Bay Neutrino Experiment, Zhimin Wang, Changgen Yang, Mengyun Guan, Weili Zhong, Jinchang Liu, Zhiyong Zhang, Yayun Ding, Ruiguang Wang, Jun Cao, Yifang Wang, Haoqi Lu, Nuclear Inst. and Methods in Physics Research, A 602 (2009), pp. 489 -493. 2. A new gadolinium-loaded liquid scintillator for reactor neutrino detection, Yayun Ding, Zhiyong Zhang, Jinchang Liu, Zhimin Wang, Pengju Zhou, Nucl. Instr. and Meth. A, 587, 584 (2008). 3. 高能物理实验中CAEN系列高压系统的自动化控制方案(The project of auto control for CAEN high voltage systems in high energy physics experiments)钱森,蔡啸,王志民,王贻芳,张家文,杨长根, 核电子学与探测技术 31, 第 28卷第 5期(2008). 4. Circulation Model for Water Circulation and Purification in Water Cerenkov Detector, LU Hao-Qi, YANG Chang-Gen, WANG Ling-Yu, XU Ji-Lei, WANG Rui-Guang, WANG Zhi-Min, WANG Yi-Fang, accepted by Chinese Physics C,编号Ò 2008 -0211 (2008) 5. Maximum likelihood reconstruction of a detector with reflective panels, Liangjian Wen, Jun Cao, Yifang Wang, Zhimin Wang and Changgen Yang, Nucl. Instr. and Meth. A, Nuclear Instruments and Methods in Physics Research A 629 (2011) 296– 302 6. Observation of electron-antineutrino disappearance at Daya Bay, Daya Bay Collaboration (F. P. An et al. ), Phys. Rev. Lett. 108 (2012) 171803, 7. A side-by-side comparison of Daya Bay antineutrino detectors, Daya Bay Collaboration (F. P. An et al. ), Nucl. Instrum. Meth. A 685 (2012) 78 -97, 8. Study of Tyvek reflectivity in water, Chinese Physics C, Volume 36, Issue 7, pp. 628 -632 (2012). 9. Improved measurement of electron antineutrino disappearance at Daya Bay, Chinese Physics C, 37, 011001, 2013 10. Advantages of Multiple Detectors for the Neutrino Mass Hierarchy Determination at Reactor Experiments, Physics Letters B 736 (2014) 110– 118 11. Advantages of multiple detectors for the neutrino mass hierarchy determination at reactor experiments, PHYSICAL REVIEW D 89, 073006 (2014) 11
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Preliminary considered 1. Raw material (ppt) 2. Film production (Class 10000) 3. Film storage (Vacuum) 4. Film cut (class 10000) 5. Film clean (class 10000, surface level 25) 5. Cut film store (class 10000) 11. Bag store onsite (gas) 7. Film welding (Class 10000) 12. Bag installation (Class 1000, gas) 8. Bag leakage checking (Class 10000, gas) 13. Bag leakage check (Class 1000, gas) 9. Bag package/store (Class 10000, gas) 14. LS filling (Class 1000, gas) 10. Bag transporting (gas) 15 Detector running (liquid) 15
doc. DB-9903 16
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