Kicker magnet

Injection kicker magnet KF45 for the PS accelerator, CERN, Meyrin Campus

Kicker magnets are dipole magnets used to rapidly switch a particle beam between two paths. Conceptually similar to a railroad switch in function, a kicker magnet must switch on very rapidly, then maintain a stable magnetic field for some minimum time. Switch-off time is also important, but less critical.

An injection kicker magnet merges two beams incoming from different directions. Most commonly, there is a beam circulating in a synchrotron, in the form of a particle train which only partially fills the arc. As soon as the circulating particle train has passed the kicker, it is switched on so that an additional batch of particles may be appended to the train. The magnet must then be switched off in time to not affect the head of the train when it next rounds the synchrotron.

An ejection kicker magnet does the opposite, diverting a circulating beam so it leaves the synchrotron. Almost always, an ejection kicker is used to eject the entire particle train, emptying the synchrotron. This means that it has the entire tail-to-head gap in the synchrotron to function, and the switch-off time is essentially irrelevant. However, it must hold a stable field for longer (one full rotation of the synchrotron), and must generate a stronger magnetic field, as it is used to eject a higher energy beam that has been accelerated in the synchrotron.

The magnets are powered by a high voltage (usually in the range of tens of thousands of volts) source called a power modulator which uses a pulse forming network to produce a short pulse of current (usually in the range of a few nanoseconds to a microsecond and thousands of amperes in amplitude). The current produces a magnetic field in the magnet, which in turn imparts a Lorentz force on the particles as they traverse the magnet's length, causing the beam to deflect into the proper trajectory.

Because a kicker magnet applies a particular lateral impulse to the beam, to achieve a fixed deflection angle the strength of the kick must be accurately matched to the momentum of the particles. This is part of the power modulator's job.

References

  • Barnes, M.J.; Ducimetière, L.; Fowler, T.; Senaj, V.; Sermeus, L. (8 March 2011). "Injection and extraction magnets: kicker magnets". arXiv:1103.1583 [physics.acc-ph].
  • Barnes, M.J.; Borburgh, J.; Goddard, B.; Hourican, M. (March 2011). "Injection and extraction magnets: septa". arXiv:1103.1062 [physics.acc-ph].
Stub icon

This accelerator physics-related article is a stub. You can help Wikipedia by expanding it.

Read other articles:

Headquarters Building, Keswick Barracks

Heritage-listed military building in Adelaide, South Australia Headquarters Building, Keswick BarracksKeswick Barracks, Adelaide, c.1918LocationAnzac Highway, Keswick, South Australia, AustraliaCoordinates34°56′38″S 138°34′57″E / 34.9438°S 138.5824°E / -34.9438; 138.5824 Commonwealth Heritage ListOfficial nameHeadquarters Building 32, Keswick BarracksTypeListed place (Historic)Designated22 June 2004Reference no.105308 Location of Headquarters Building,...

 

Fu Zuoyi

Fu Zuoyi傅作义Jenderal Fu ZuoyiLahir(1895-06-02)2 Juni 1895Linyi, ShanxiMeninggal19 April 1974(1974-04-19) (umur 78)BeijingPengabdian Republik Tiongkok TiongkokLama dinas1911–1949PangkatJenderalKesatuan Tentara Revolusioner TiongkokKomandanKorps ke-59, Area Perang ke-12, Komando Pertahanan Tiongkok UtaraPerang/pertempuran Revolusi Xinhai Ekspedisi Utara Perang Dataran Tinggi Tengah Kampanye Suiyuan Perang Tiongkok-Jepang Kedua Pertempuran Taiyuan Pertempuran Wuyuan Pe...

 

Demam kuning

Demam kuningMikrograf virus demam kuning melalui TEM (pembesaran 234.000X).Informasi umumSpesialisasiPenyakit infeksi  Demam kuning (dijuluki Yellow Jack) adalah sebuah penyakit hemoragik virus akut.[1] Virus ini berupa virus RNA sebesar 40 hingga 50 nm dengan sense positif dari famili Flaviviridae. Virus demam kuning ini ditularkan melalui gigitan nyamuk betina (nyamuk demam kuning, Aedes aegypti, dan spesies lain) dan ditemukan di kawasan tropis dan subtropis di Amerika Se...

Edi Sugardo

Edi Sugardo Informasi pribadiLahir(1925-06-29)29 Juni 1925Kota Kudus, Kudus, Hindia Belanda JepangMeninggal12 Juli 2002(2002-07-12) (umur 77)Karier militerPihak IndonesiaDinas/cabang TNI Angkatan DaratMasa dinas1945 – ?Pangkat Brigadir Jenderal TNINRP11121SatuanInfanteriSunting kotak info • L • B Brigadir Jenderal TNI (Purn.) Edi Sugardo (29 Juni 1925 – 12 Juli 2002) merupakan seorang perwira tinggi angkatan darat di Indonesia. Ia la...

 

Atipamezole

Veterinary medication AtipamezoleClinical dataTrade namesAntisedan, othersAHFS/Drugs.comVeterinary UseVeterinary UseLicense data US DailyMed: Atipamezole Routes ofadministrationIntramuscularDrug classReversal agentATCvet codeQV03AB90 (WHO) Legal statusLegal status CA: ℞-only[1] US: ℞-only[2][3][4][5][6] Pharmacokinetic dataMetabolismLiverOnset of actionLess than 3 min.Elimination half-life2.6 hours (dogs)Excret...

 

Brad Little

Brad Little Bradley Jay Little (lahir 15 Februari 1954) adalah seorang politikus Amerika Serikat yang menjabat sebagai Gubernur Idaho ke-33 sejak Januari 2019. Sebagai anggota Partai Republik, ia sebelumnya menjabat sebagai Wakil Gubernur Idaho ke-42 dari 2009 sampai 2019. Referensi Pranala luar Wikimedia Commons memiliki media mengenai Brad Little. Official government site Official campaign Site Kemunculan di C-SPAN lbsGubernur IdahoTeritorial (1863–90) Wallace Lyon Ballard Bowen Benne...

Roy O'Donovan

Questa voce sull'argomento calciatori irlandesi è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Roy O'Donovan Nazionalità  Irlanda Altezza 177 cm Calcio Ruolo Ala Squadra  Sydney Olympic CarrieraGiovanili 2001-2004 Coventry CitySquadre di club1 2005-2007 Cork City74 (31)2007-2010 Sunderland17 (0)2008-2009→  Dundee Utd11 (1)2009→  Blackpool12 (0)2009→  Sout...

 

الإمبراطورية البرتغالية

الإمبراطورية البرتغالية الإمبراطورية البرتغالية Império Português ↓ 1415–1999 ↓ الإمبراطورية البرتغاليةعلم البرتغال  الإمبراطورية البرتغاليةشعار البرتغال  المناطق التي كانت خاضعة للإمبراطورية البرتغالية حول العالم عاصمة لشبونةريو دي جانيرو نظام الحكم ملكية (1415–1910)جمهور...

 

Lebih Baik Sendiri

Lebih Baik SendiriAlbum studio karya Titi KamalDirilis11 Juli 2009Direkam2009GenrePop, R&BLabelE-MotionKronologi Titi Kamal Ost. Mendadak Dangdut(2006) kompilasiOst. Mendadak Dangdut2006 Lebih Baik Sendiri (2009) Lebih Baik Sendri adalah album musik pertama karya Titi Kamal yang dirilis pada tahun 2009. Lagu utamanya ialah Kamu Bilang. Daftar lagu Jangan Coba Mencintaiku Resah Tanpamu (feat. Anji) Lebih Baik Sendiri Cinta Memang Kejam Kamu Bilang Cintai Aku Lebih Baik Sendiri (Dance M...

Altopiano

Questa voce sull'argomento altopiani è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. L'Altopiano del Tibet, il più vasto altopiano al mondo In geomorfologia, l'altopiano (o altipiano)[1] è un territorio pianeggiante ma posto a un'altitudine di almeno 300 m s.l.m.,[2] circondato da zone ad altitudine inferiore, e spesso delimitato da versanti montuosi con la stessa inclinazione. Indice 1 Descrizione 1.1 Tipologie 1.2 Altipiani princip...

 

Sexual practices between men

Gay sexual practices redirects here. For sex acts between women, see sexual practices between women. Sexual activity between men 19th-century erotic interpretation of Hadrian and Antinous, by Paul Avril. Sexual activities involving men who have sex with men (MSM), regardless of their sexual orientation or sexual identity,[1] can include anal sex, non-penetrative sex, and oral sex. Evidence shows that sex between men is significantly underreported in surveys.[2][3] Beha...

 

五泄镇

此條目需要补充更多来源。 (2022年11月15日)请协助補充多方面可靠来源以改善这篇条目，无法查证的内容可能會因為异议提出而被移除。致使用者：请搜索一下条目的标题（来源搜索：五泄镇 — 网页、新闻、书籍、学术、图像），以检查网络上是否存在该主题的更多可靠来源（判定指引）。 五泄镇镇坐标：29°41′36″N 120°04′50″E / 29.69328°N 120.08049°E / ...

Lucretius

1st-century BC Roman poet and philosopher This article is about the Roman poet and philosopher. For other people named Lucretius, see Lucretia gens. For the impact crater on the far side of the Moon, see Lucretius (crater). Titus Lucretius CarusLucretius pointing to the casus, the downward movement of the atoms. From the frontispiece to Of the Nature of Things, 1682.Bornc. 99 BCDiedc. 55 BC (aged around 44)EraHellenistic philosophySchoolEpicureanismAtomismMaterialismMain interestsEthics, meta...

 

缅族

本页面有缅文字母，操作系统及浏览器須支持特殊字母与符号才能正確显示为缅文字母，否则可能變成乱码、问号、空格等其它符号。 緬人總人口約3300萬－3600萬人分佈地區 緬甸      30,110,000 泰國2,500,000 新加坡72,368 澳大利亞107,112 美国96,420 日本15,800 韩国22,000 马来西亚66,500 英国9,800 德国7,300 香港5,400 柬埔�...

 

Cape Lollo

Promontory on Bouvet Island Map of Bouvetøya Cape Lollo (Norwegian: Kapp Lollo), located at 54°25′S 3°29′E / 54.417°S 3.483°E / -54.417; 3.483, is a cape which forms the northeastern extremity of Bouvetøya in Norway. It was first charted in 1898 by a German expedition under Carl Chun, and was recharted and named in December 1927 by a Norwegian expedition under Captain Harald Horntvedt.[1][2] See also Spiess Rocks References ^ Cape Lollo. Geogr...

Battle of Lacus Curtius

Final battle in the war between the Roman Kingdom and the Sabines in the 8th century BC Battle of the Lacus CurtiusRome under the rule of RomulusDateDuring the reign of RomulusLocationNear the Lacus Curtius of the Roman Forum, RomeResult See § ResolutionBelligerents Roman Kingdom Foreign mercenaries (under Lucumo) Alban auxiliaries SabinesCommanders and leaders RomulusLucumoHostus Hostilius Titus TatiusMettius CurtiusStrength 20,000 infantry800 cavalry[1] 25,000 infantry1,000 cavalry...

 

St Mary's Church, Disley

Church in Cheshire, EnglandSt Mary's Church, DisleySt Mary's Church, Disley, from the southeastSt Mary's Church, DisleyLocation in Cheshire53°21′27″N 2°02′22″W / 53.3575°N 2.0395°W / 53.3575; -2.0395OS grid referenceSJ 974 845LocationDisley, CheshireCountryEnglandDenominationAnglicanChurchmanshipEvangelicalWebsiteSt Mary, DisleyHistoryStatusParish churchConsecrated1558ArchitectureFunctional statusActiveHeritage designationGrade II*Designated27 November 196...

 

英文虎報

此條目需要补充更多来源。 (2009年5月28日)请协助補充多方面可靠来源以改善这篇条目，无法查证的内容可能會因為异议提出而被移除。致使用者：请搜索一下条目的标题（来源搜索：英文虎報 — 网页、新闻、书籍、学术、图像），以检查网络上是否存在该主题的更多可靠来源（判定指引）。 英文虎報 The Standard類型日報版式小報持有者星島新聞集團出版商The Standard Newspap...

Nathaniel Davis

American diplomat (1925–2011) For the former U.S. ambassador to Costa Rica and minister to Hungary, see Nathaniel Penistone Davis. For other people named Nathaniel Davis, see Nathaniel Davis (disambiguation). Nathaniel DavisUnited States Ambassador to SwitzerlandIn officeNovember 20, 1976 (1976-11-20) – July 31, 1977 (1977-07-31)PresidentGerald Ford Jimmy CarterPreceded byPeter H. DominickSucceeded byMarvin L. Warner6th Assistant Secretary of State f...

 

Stefan William

Stefan WilliamLahirStefan William Umboh11 Agustus 1993 (umur 31)California, Amerika SerikatKebangsaanIndonesiaPekerjaanPemeranmodelpenyanyipolitikusTahun aktif2007—sekarangPartai politikPartai Amanat Nasional (2023–sekarang)Suami/istriCeline Evangelista ​ ​(m. 2016; c. 2021)​Ria AndrewsAnak3Kerabat Wim Umboh (kakek) Paula Rumokoy (nenek) Maria Umboh (bibi) Penghargaanlihat daftar Karier musikInstrumenVokalLabelBentuk MusicAnggotaT...