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Diode pumped Birefringent Tunable Nd∶YAG Laser with Large Frequency Difference

Chinese Journal of Lasers 2001年第1期 7-11页

作者： chang li zhang shulian han yanmei li yan (The State Key Lab of Precision Measurement Tech. and Instruments, Tsinghua University, Beijing 100084, China) received jan. 17, 2000 Revised manuscript received Apr. 19, 2000

A dual frequency Nd∶YAG laser which can output two frequencies with frequency difference of more than 5 gigaherz is developed. By inserting and moving an intracavity quartz crystal wedge in diode pumped Nd∶YAG laser, It can be obtained and tuned frequency difference in a wide frequency range. The stabilization of frequency difference in free state is much better than that of birefringent dual frequency He Ne lasers at similar laboratory conditions. With such a large tunable frequency difference i.e. short synthetic wavelength, the laser may be used as the light source of absolute distance interferometers. In our experiment, the methods for tuning frequency difference by rotating and applying a tunable force on the intracavity quartz plate are also studied.

关键词： large frequency difference birefingent Nd∶YAG absolute distance interferometry

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CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun chang Yue chang Zhe chang Xinyuan chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal University Beijing Brown University ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central China Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan China academy of engineering physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy Beijing China Jiliang University HangzhouZhejiang China Nuclear Instrument CO. LTDBeijing China University of Geosciences Beijing China University of Geosciences WuhanHubei China University of Mining and Technology XuzhouJiangsu China West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East China University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

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肝内静脉分流对肝静脉压力梯度测量的影响

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复旦学报（医学版） 2022年第1期49卷 73-80,99页

作者：马力罗剑钧颜志平张雯张子寒杨敏捷李长煜周永杰庄志泉周长武马婧嶔上海市影像医学研究所上海200032 复旦大学附属中山医院介入治疗科上海200032 复旦大学附属中山医院放射科上海200032

目的探讨肝内静脉分流(intrahepatic veno-venous shunt,IHVS)对窦性肝硬化门脉高压患者肝静脉压力梯度(hepatic venous pressure gradient,HVPG)测量的影响。方法回顾性分析复旦大学附属中山医院2015年1月至2020年11月接受经颈静脉肝... 详细信息

目的探讨肝内静脉分流(intrahepatic veno-venous shunt,IHVS)对窦性肝硬化门脉高压患者肝静脉压力梯度(hepatic venous pressure gradient,HVPG)测量的影响。方法回顾性分析复旦大学附属中山医院2015年1月至2020年11月接受经颈静脉肝内门体分流术(transjugular intrahepatic portosystemic shunt,TIPS)治疗的259例肝硬化门静脉高压患者的临床资料。采用血管造影参数成像(angiographic parameter imaging,API)软件对前后位数字减影血管造影(digital subtraction angiography,DSA)图像进行时间-强度的彩色像素编码,从而定量分析IHVS,并与直接门静脉压(portal venous pressure,PVP)进行比较,评估其对HVPG的影响。结果36.3%的患者(94/259)存在不同程度的IHVS:轻度11.6%(30/259),中度10.0%(26/259),重度14.7%(38/259)。与无IHVS的患者相比,IHVS患者平均肝静脉楔压(wedged hepatic venous pressure,WHVP)和HVPG更低(P均<0.001)。IHVS的严重程度不同对WHVP和HVPG的影响程度也不同。相较于平均PVP和门静脉压力梯度(portal venous pressure gradient,PPG),轻度IHVS患者的平均WHVP和HVPG降低约7 mmHg(WHVP:P=0.027,HVPG:P=0.039),中度IHVS患者降低约10 mmHg(WHVP:P=0.022,HVPG:P=0.013),重度IHVS患者降低约15 mmHg(WHVP:P<0.001,HVPG:P<0.001)。结论对伴有IHVS的患者,HVPG的测量结果可能严重低估了实际的PVP,应通过门静脉导管直接测定实际PVP。

关键词：肝硬化肝内静脉分流(IHVS) 肝静脉压力梯度(HVPG) 门静脉压力梯度(PPG)

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国产西罗莫司洗脱支架治疗冠心病的近远期疗效

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中华心血管病杂志 2007年第3期35卷 216-219页

作者：何继强李峥高阅春吴长燕张晓玲李宇赵华汪烨韩智红张维东陈方首都医科大学附属北京安贞医院心内科 100029

目的评价国产西罗莫司洗脱支架(Firebird)在冠心病患者中应用的近、远期疗效。方法 2003年11月至2005年1月共410例冠心病患者(460处病变)置入 Firebird 支架501个。所有患者术前、术后均给予足量抗血小板药物,通过门诊或电话随访,部分... 详细信息

目的评价国产西罗莫司洗脱支架(Firebird)在冠心病患者中应用的近、远期疗效。方法 2003年11月至2005年1月共410例冠心病患者(460处病变)置入 Firebird 支架501个。所有患者术前、术后均给予足量抗血小板药物,通过门诊或电话随访,部分患者进行了冠状动脉造影复查来评估 Firebird 支架在国人冠心病治疗中的临床疗效。结果手术成功率99.5%,术中有1例支架内血栓形成;术后住院期间有1例猝死,主要不良心脏事件(包括死亡、非致死性心肌梗死和靶病变血管重建术)发生率为0.2%(1/410);376例患者完成随访,随访率91.7%,平均随访时间(12.8±3.2)个月,死亡3例,非致死性心肌梗死4例,11例进行了再次靶病变重建术,主要不良心脏事件发生率为4.3%(16/376),支架内血栓发生率1.1%(4/376)。102例(122处病变)进行冠状动脉造影复查,支架内再狭窄率占所有随访患者的2.9%(12/418),占所有造影复查的9.8%(12/122)。结论Firebird 支架在国人冠心病介入治疗中的应用是安全和有效的,但尚需大规模的随机对照试验来评价。

关键词：冠状动脉疾病支架再狭窄支架内血栓

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