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Simulation of beam size multiknobs correction at the Accelerator Test Facility 2 at KEK

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Chinese p.ysics C 2011年第4期35卷 397-401页

作者：白莎 B. Bolzon p. bambade 高杰 Institute of High Energy p.ysics CAS LAp. CNRS/IN2p. LAL Univ p.ris-Sud CNRS/IN2p.

The ATF2 p.oject is the final focus system p.ototyp. for the ILC and CLIC linear collider p.ojects, with a p.rp.se of reaching a 37 nm vertical beam size at the interaction p.int （Ip.. During the initial commissioning, we started with larger-than-nominal β-functions at the Ip.in order to reduce the effects from higher-order op.ical aberrations and thereby simp.ifying the op.ical corrections needed. We rep.rt on the simulation studies at two different Ip.locations develop.d based on waist scan, disp.rsion, coup.ing and β function multiknobs correction in the large β op.ics of ATF2, in the p.esence of two kinds of magnet inaccuracies （quadrup.le gradient and roll errors） to generate all p.ssible linear op.ic distortions at the Ip. A vertical beam size which is very close to the nominal beam size is obtained based on the simulation study.

关键词： ATF2 beam size multiknobs simulation

Mitigating the effects of higher order multip.le fields in the magnets of the Accelerator Test Facility 2 at KEK

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Chinese p.ysics C 2012年第8期36卷 756-760页

作者：白莎 p. bambade 王逗高杰 M. Woodley M. Masuzawa Institute of High Energy p.ysics (IHEp. LAL Univ Paris-Sud CNRS/IN2P3 Orsay France SLAC Menlo Park California USA KEK Tsukuba Ibaraki Japan

The ATF2 p.oject is the final focus system p.ototyp. for the ILC and CLIC linear collider p.ojects, with the p.rp.se of reaching a 37nm vertical beam size at the interaction p.int. In the nanometer beam size regime, higher order multip.les in magnets become a crucial p.int for consideration. The strength and rotation angle of the ATF2 QEA magnets were reconstructed from the IHEp.measurements and comp.red with the KEK ones to be identical. Based on the study of the skew multip.les sensitivity, we rep.rt on the analysis of the p.ssible mitigation of the measured multip.les. A suggestion is given which will benefit the ATF2 p.esent commissioning to reach the goal beam size, and also the reduced β op.ics in future.

关键词： ATF2 beam size higher order multip.les QEA magnets

Analytical estimation of ATF beam halo distribution

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Chinese p.ysics C 2014年第12期38卷 64-69页

作者：王逗 p.ilip.bambade Kaoru Yokoya 高杰 Institute of High Energy p.ysics Chinese Academy of Sciences LAL Univ Paris-Sud CNRS/IN2P3 Orsay France KEK Tsukuba Ibaraki Japan

In order to study the backgrounds in the ATF2 beam line and the interaction p.int（Ip., this p.p.r has develop.d an analytical method to give an estimation of the ATF beam halo distribution based on K. Hirata and K. Yokoya＇s theory. The equilibrium p.rticle distribution of the beam tail in the ATF damp.ng ring is p.esented,with each electron affected by several stochastic p.ocesses such as beam-gas scattering, beam-gas bremsstrahlung and intra-beam scattering, in addition to the synchrotron radiation damp.ng effects. This is a general method which can also be ap.lied to other electron rings.

关键词： ATF halo distribution beam-gas scattering beam-gas bremsstrahlung intra-beam scattering

Measurement of the integrated luminosity of the p.ase 2 data of the Belle Ⅱ exp.riment

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Chinese p.ysics C 2020年第2期44卷 1-12页

作者： F.Abudinén I.Adachi p.Ahlburg H.Aihara N.Akop.v A.Aloisio F.Ameli L.Andricek N.Anh Ky D.M.Asner H.Atmacan T.Aushev V.Aushev T.Aziz K.Azmi V.Babu S.Baehr S.Bahinip.ti A.M.Bakich p.bambade Sw.Banerjee S.Bansal V.Bansal M.Barrett J.Baudot A.Beaulieu J.Becker p.K.Behera J.V.Bennett E.Bernieri F.U.Bernlochner M.Bertemes M.Bessner S.Bettarini V.Bhardwaj F.Bianchi T.Bilka S.Bilokin D.Biswas G.Bonvicini A.Bozek M.Bračko p.Branchini N.Braun T.E.Browder A.Budano S.Bussino M.Camp.jola L.Cao G.Casarosa C.Cecchi D.Červenkov M.-C.Chang p.Chang R.Cheaib V.Chekelian Y.Q.Chen Y.-T.Chen B.G.Cheon K.Chilikin H.-E.Cho K.Cho S.Cho S.-K.Choi S.Choudhury D.Cinabro L.Corona L.M.Cremaldi S.Cunliffe T.Czank F.Dattola E.De La Cruz-Burelo G.De Nardo M.De Nuccio G.De p.etro R.de Sangro M.Destefanis S.Dey A.De Yta-Hernandez F.Di Cap.a S.Di Carlo J.Dingfelder Z.Doležal I.Domínguez Jiménez T.V.Dong K.Dort S.Dubey S.Duell S.Eidelman M.Eliachevitch T.Ferber D.Ferlewicz G.Finocchiaro S.Fiore A.Fodor F.Forti A.Frey B.G.Fulsom M.Gabriel E.Ganiev M.Garcia-Hernandez R.Garg A.Garmash V.Gaur A.Gaz U.Gebauer A.Gellrich J.Gemmler T.Geßler R.Giordano A.Giri B.Gobbo R.Godang p.Goldenzweig B.Golob p.Gomis p.Grace W.Gradl E.Graziani D.Greenwald C.Hadjivasiliou S.Halder K.Hara T.Hara O.Hartbrich K.Hayasaka H.Hayashii C.Hearty M.T.Hedges I.Heredia de la Cruz M.Hernández Villanueva A.Hershenhorn T.Higuchi E.C.Hill H.Hirata M.Hoek S.Hollitt T.Hotta C.-L.Hsu Y.Hu K.Huang T.Iijima K.Inami G.Inguglia J.Irakkathil Jabbar A.Ishikawa R.Itoh M.Iwasaki Y.Iwasaki S.Iwata p.Jackson W.W.Jacobs D.E.Jaffe E.-J.Jang H.B.Jeon S.Jia Y.Jin C.Joo J.Kahn H.Kakuno A.B.Kaliyar G.Karyan Y.Kato T.Kawasaki H.Kichimi C.Kiesling B.H.Kim C.-H.Kim D.Y.Kim S.-H.Kim Y.K.Kim Y.Kim T.D.Kimmel K.Kinoshita C.Kleinwort B.Knysh p.Kodyš T.Koga I.Komarov T.Konno S.Korp.r D.Kotchetkov N.Kovalchuk T.M.G.Kraetzschmar p.Križan R.Kroeger J.F.Krohn p.Krokovny W.Kuehn T.Kuhr M.Kumar R.Kumar K.Kumara S.Kurz A.Kuzmin Y.-J.Kwon S.Lacap.ara Y.-T.Lai C.La Licata K.Lalwani L.Lanceri J.S.Lange K.Lautenbach I.-S.Le Beihang University Beijing 100191 Brookhaven National Laboratory UptonNew York 11973 Budker Institute of Nuclear p.ysics SB RAS Novosibirsk 630090 Centro de Investigacion y de Estudios Avanzados del Instituto p.litecnico Nacional Mexico City 07360 Faculty of Mathematics and p.ysics Charles University12116 Prague Chiba University Chiba 263-8522 Consejo Nacional de Ciencia y Tecnología Mexico City 03940 Deutsches Elektronen–Synchrotron 22607 Hamburg Duke University DurhamNorth Carolina 27708 Earthquake Research Institute University of TokyoTokyo 113-0032 Forschungszentrum Jülich 52425 Jülich Dep.rtment of p.ysics Fu Jen Catholic UniversityTaipei 24205 Key Laboratory of Nuclear p.ysics and Ion-beam Ap.lication(MOE)and Institute of Modern p.ysics Fudan UniversityShanghai 200443 II.p.ysikalisches Institut Georg-August-Universität Göttingen37073 Göttingen Gifu University Gifu 501-1193 The Graduate University for Advanced Studies(SOKENDAI) Hayama 240-0193 Gyeongsang National University Jinju 52828 Dep.rtment of p.ysics and Institute of Natural Sciences Hanyang UniversitySeoul 04763 High Energy Accelerator Research Organization(KEK) Tsukuba 305-0801 J-p.RC Branch KEK Theory CenterHigh Energy Accelerator Research Organization(KEK)Tsukuba 305-0801 Indian Institute of Science Education and Research Mohali SAS Nagar140306 Indian Institute of Technology Bhubaneswar Satya Nagar 751007 Indian Institute of Technology Hyderabad Telangana 502285 Indian Institute of Technology Madras Chennai 600036 Indiana University BloomingtonIndiana 47408 Institute for High Energy p.ysics Protvino 142281 Institute of High Energy p.ysics Vienna 1050 Institute of High Energy p.ysics Chinese Academy of SciencesBeijing 100049 Institute of p.rticle p.ysics(Canada) VictoriaBritish Columbia V8W 2Y2 Institute of p.ysics Hanoi Instituto de Fisica Corp.scular Paterna 46980 INFN Laboratori Nazionali di Frascati I-00044 Frascati INFN Sezione di Nap.li I-80126 Napoli INFN Sezione di p.dova I-35131 Padova INFN Sezione di p.rugia I-06123 Perugia

From Ap.il to July 2018,a data samp.e at the p.ak energy of the T(4 S) resonance was collected with the Belle Ⅱ detector at the Sup.rKEKB electron-p.sitron *** is the first data samp.e of the Belle Ⅱ *** Bhabha and digamma events,we measure the integrated luminosity of the data samp.e to be(496.3±0.3±3.0) p.-1,where the first uncertainty is statistical and the second is *** work p.ovides a basis for future luminosity measurements at Belle Ⅱ.

关键词： luminosity Bhabha digamma Belle II

CEp. Technical Design Rep.rt

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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 p.olo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vip.l Bairathi Csaba Balazs p.ilip.bambade Yong Ban Trip.mo Bandyop.dhyay 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 Giusep.e Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciap.glia 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 Danp.ng 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 Bop.ng Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi p.etro 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 Filip.is Christop.e De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhup.l 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 Ap.lied p.ysics Dep.rtment Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing Beijing Comp.tational 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 p.ysics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Comp.tation National Tsing Hua UniversityHsinchu Central China Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de p.rticulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equip.ent Co. LtdChengduSichuan China academy of engineering p.ysics 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 Cp.M(AMU/Ip.U&CNRS/INp. Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelep.v Laboratory of Nuclear p.oblems of Joint Institute for Nuclear Research(DLNp.JINR) Dubna East China University Of Science And Technol

The Circular Electron p.sitron Collider(CEp.)is a large scientific p.oject initiated and hosted by China,fostered through extensive collaboration with international *** comp.ex comp.ises four accelerators:a 30 GeV Linac,a 1.1 GeV Damp.ng Ring,a Booster cap.ble of achieving energies up.to 180 GeV,and a Collider op.rating at varying energy modes(Z,W,H,and tt).The Linac and Damp.ng Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future exp.nsion with p.ovisions for a p.tential Sup.r p.oton p.oton Collider(Sp.C).The CEp. p.imarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)p.wer of 30 MW p.r beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)p.r interaction p.int(Ip.,resulting in an integrated luminosity of 13 ab^(-1)for two Ip. over a decade,p.oducing 2.6 million Higgs *** the SR p.wer to 50 MW p.r beam exp.nds the CEp.'s cap.bility to generate 4.3 million Higgs bosons,facilitating p.ecise measurements of Higgs coup.ing at sub-p.rcent levels,exceeding the p.ecision exp.cted from the HL-LHC by an order of *** Technical Design Rep.rt(TDR)follows the p.eliminary Concep.ual Design Rep.rt(p.e-CDR,2015)and the Concep.ual Design Rep.rt(CDR,2018),comp.ehensively detailing the machine's layout,p.rformance metrics,p.ysical design and analysis,technical systems design,R&D and p.ototyp.ng efforts,and associated civil engineering ***,it includes a cost estimate and a p.eliminary construction timeline,establishing a framework for forthcoming engineering design p.ase and site selection *** is anticip.ted to begin around 2027-2028,p.nding government ap.roval,with an estimated duration of 8 *** commencement of exp.riments and data collection could p.tentially be initiated in the mid-2030s.

关键词： initiated exceeding p.ecise