XJ9800228

OBbEflMHEHHblM

MHCTHTYT

HflEPHblX

MCCJlEflOBAHMM

flydna

PI 97-368

A.H.AjieeB, B.n.BajiaHflHH, A.A.EopflioKOB, A.H.3HHH6HKO, H.F.KocapeB, H.A.KysbMHH, C.H.KyKapHHKOB, B.K.MaKOBees, A.III.MecTBHpHiiiBHJiH, K).K.rioTpe6eHHKOB, H.O.OypManeu, H.D.IOflHH

H3MEPEHHE IlOJIfl CIlEKTPOMETPHHECKOrO MAEHHTA YCTAHOBKH 9KCHAPM

HanpaBJieHO b acypHan «ripn6opbi h tcxhhk3 3KcnepHMCHTa»

2 9-421997

VcTaHoBKa SKCHAPM (pac. 1) McnoJibsyeica fljm HByaeaHH xapaaxe- pMCTMK powfleHHH h pacnana oaapoBaHHbix Hacxau a noncKa aKaoxaaecKMX aapoHoa [1] m pacnoJiOHteHa b HeiixpoHHOM Kaaajie 5H ycKopaxenn Y—70 (H<J>B9, r.IIpoTBHHo). SjieKTpoMarHMT cneKxpoMeipa MMeex BHeuiHue pas- Mepbi 4,485 x 3,196 x 3,058 m3 h anepxypy 2,740 x 0,489 m2.

M3MepeHMe MarHMTHoro nojia ocymecxBJwniocb xpexKOMnoHeHXHHM xojijio- BCKHM MarHMTOMeXpOM B BBTOMaTHSHpOBaHHOM peHKMMB Ha CBH3M C nepCOHaJIb-hhm KOMnbiOTepoM. Pa6onan o6jiacib MSMepeHMM cocTaBHJia 2,40 x 0,32 x" 3,78m3. B pa6oxe flaexca onHcaHHe H3MepnxejibHOH annapaxypw a npoqeflypM MSMepeHMii. IlpHBefleHH peayjibxaxn MgMepeHHM, flaexcH opeHKa hx xohhocih.

-6 -5 -4 -3 -2-1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Pac. 1. CxeMa pacnojioHceHHB uexeKXopoB cneKxpoMexpa 9KCtTAPM.M — cneKTpoMexpMHecKMH Maranx CII-40A, PC — nponopuaoaajibabie

naMepbi, HI,2 — cqMHxajaiflUMOHHbie roflocKonu, Cl,2 — noporoaue aepea- KOBCKMe caexaMKM, HC — aApoHHHii KaJiopmviexp, A — aaxMcaexaaK, T — MMineab, Mn — aeiixpoHHHii Moaaxop

I. BiioK-cxeMa HSMepHTejibHoro KOMnjieKca

HsMepeaae MarHaxaoro no jib ocymecxBjnuiocb TpexKaaajibHMM xojuiobckhm MaraaxoMexpoM (M3X) [2] b aBTOMaxasapoBaHHOM pewHMe aa cbhsii c nep- coaanbHbiM KOMnbtoxepoM (UK). BiioK-cxeMa M3MepeaHfl MamaiHoro nojib ycxaaoBKM 9KCT4APM npencxaBJieaa aa pac.2. Heaxp cneKxpoMexpHMecicoro Maraaxa CI1-40A npHHHMaeica sa aaaajio ’’npaBoii” neKapxoaoM chcxomh ko- opflMHax (XYZ) cneaxpoMexpa.

MaraMTOMexpaaecKaH annapaxypa nossojMJia oflaoBpeMeaao MSMepsxb ace xpa npoeiuiMH b BM6paaHOH CHCxeMe KoopflHaax (XYZ) seKxopa Maraaiaoro

1

Phc.2. BnoK-cxeMa usMepeHtia nona MarHHTa 3KCTAPM

norra b saflaHHOH tchkc c noMonjbio Tpex HeaaBMCMMHX H3MepMTejibHbix naHa- jiob. OcHOBHaa MSMepMTejibHaa annapaiypa pacnojiarajiacb HenocpeflCTBeHHo Boajie MarHHTa b 3KcnepnMeHTajibH0H 30He nanajia 5H. Hpo6hmkh c aamw- KaMM Xojuia (^X) pasMemaJiHCb b cneqnajibHOH roaoBKe h naTHMexpoBbiM na- 6eJieM coeflHHHJiMCb co bxobiOM annapaiypH. Bbixo# H3MepHTeJibHofi annapa- Typbi coe^MHBJica nHTHaflqaTHMeTpoBbiM KaSejieM c I1K, pacnojioateHHbiM bhb 3KcnepHMeHTaabHoii sohh b cneqnaJibHOM flOMHKe. flaHHHe o MarHHTHOM nojie o6pa6aTbiBaJiHCb h sanMCHBajiHCb Ha MarHHTHOM ahckb IIK. MarHHTOMexp no- 3BOJiaji MSMepnib MaraHTHue noaa b #nana30He ot 0 flo 2 Tji (b Tpex noMH- anaaonax) c MaKCHMaJibHO bo3Mo>khoh nyBCTBHTejibHOCTbio He xyace 0,13 Fc. Tohhoctb MSMepeHHa MarHMTHoro nojia 6buia He Menee ± 0,02 % ot MancM- MyMa noflflManasoHa. flaHHbie o tokb nmaHHH Mamma cpHKCHpoBaJiHCb Ha peHTpaJibHOM nyjibTe c nocneflyroipeii aanMCbio b pa6oneM HcypnaJie HSMepe- HHH. CTa6HJIbHOCTb TOKa nHiaHM MarHHTa BO BpeM-H MarHMTHbIX H3MepeHHM6buia He xyace 0,01 %.

II. KoOpUHHaTHHH M6XaHH3M

IlepeMemeHHe tojiobkh c xpeMH npoOnHKaMH ocymecTBJiHJiocb c noMombio cneqHaJibHoro KoopflHHaTHoro MexannsMa (pnc.3). Ha neTbipex CTaqnoHapHHX onopax BHe MarHHTa saKpenMJiHCb abc ^ByTaspoabie fliopajnoMHHHeBHe SajiKH AJiHHOH no 3,5 m, KOTopbie Moran nepeMemaxbca no BucoTe (Y) na 480 mm. Ha BepxHen, o6pa6oTaHHoii noaepxHocTH 3thx danoK saapenjiajiacb aayTaBpoBaa fliopajiroMMHHeBcm 6ajiKa fljiHHoii 4,3 m, KOTopaa Moraa nepeMeipaTbca nonepeK

2

Pwc.3. KoopflHHaTHaa cHCTSMa ana HauepeHHa nona MarHHTa 3KC4APM

MarHMTa (X) Ha 2400 mm. Ho BepxHefi, ofipaSoTaHHoft noaepxHocTH stom 6aJiKn BfloJib MarHMTa (Z) KaTaaacb KapeTKa c saKpenjieHHHMM Ha Hew flamwKaMH. Hepi})opMpoBaHHafl xeHTa M3 Hep*aBeiomeM cTaJiM o6ecneHMBajia nepeMeme- HMe KapeTKM b flManasoHe 3780 mm c tohhoctmo He xy>Ke 0,1 mm. KoHCTpyKUMa KapeTKM no3BOJi«jia saupenaHTb ronoBKy c flX b aeyx KpaitHMX noaoweHMax, hto , oOecneHMBaJio MaKCMMaJibHoe npMOjiMxceHMe (no 5 mm) aaTHMKOB k no- jirocaM MarHMTa. lOciMpoBKa KOopaMHaTHoro MexaHMSMa m ero mpnaasKa k penepHMM ocbm MSMep-neMoro MarHMTa ocymecTBJifniacb c noMomiio npeyMSM- ohhom reoflesMHecKoii annapaxypbi (xeoflojiMT, yposeHb, yraoMep). ToHHocxb npMBH3KM KoopflMHaxHoro MexaHMSMa k ocjim MarHMTa cocxaBMJia 0,2 mm. Ot- KJIOHeHHe OX J1MH6MHQCXM HpM nepeMBBjeHMH KapeTKM BflOJIb OCH Z Ha flJIMHe 3780 MM COCTaBMJlO ± 1 MM. IlpoOHMKM C JJ,X SaKpeHJIHJlMCb B rOJIOBKC TaK,hto XI = X2 = X3, Y1 = Y2 = Y3, Z1 = Z2 - 10 mm = Z3 - 20 mm.

III. PesyjiMaTH HSMepeHHfl MarHMTHoro nona cneKipoMexpa

ripouecc MsMepeHMH MarHMTHoro nojia BKaionaJi B ce6a cJieflyrouiMe ochobhub sxanbi.

1. rtpoBepKa cxa6MJibHOcxM MarHMTHoro norm 3JieKTpoMarHMxa npn homm- HaabHOM pewMMe. J3,nn sxoro npoBo^Maocb MHoroKpaxHoe MSMeperiMe Ma­rHMTHoro nom b oflHoii saflaHHOM TOHKe. CxaxMCTMKa, ocHOBanHaa Ha 50 MSMepeHMflx, nossojinjia BMHMcaMTb cpeaneKBaapaTMHecKyto oniMSKy. 9ra ournGKa cocTaanaa He 6onee 0,02 % (ox MaKCMMyMa noaaManasoHa).

2. MsMepeHMe no^po6HOM Kapra seKiopa MarHMTHoro nojia (60000 tohck) npM HOMMHaJIbHOM peWHMe B neBBTM njIOCKOCTBX no BblCOTe MarHMTa. Ha pmc.4 a, 6, b npMse^eHH cooxBexcxBeHHo KOMnonen™ /(,. m Bz MSMepeHHoro MarHMTHoro noaa.

MsMepeHMe Br m ti- Ha <t>OHe cymecTaeHHo 6ojibiueM KOMnoneHTbi IS,, mo- tjio npMBecxM k cepbe3HMM ouiMCKaM npn HenapaJiJiejibnocTM h>'bctbm- TejIbHOM nJIOCKOCTM %(X OCHOBHOM KOMnOHGHTe ( IS,,) HpM MSMepCHMM 3TMX

3

10000

5000

Pmc. 4. KoMnoMeHTH MarHHTHoro rojih: a) - By, 6) - Bx, a) - Bz [Pc] b^ojib och z [cm] npH pasJiHHHhix x c rnaroM hx = 5 cm b hjicckocth y = 20 cm

4

KOMUOHeHT (Bx, B,). Jinx ynexa axon oiuh6kh npo6HMKH c flX recxn- posajiMCb b noae 1,67 Ta Kaan6poBOHHoro MarHHia c oflHopoflHocxbio He xyace 0,001 npn ycxaHOBKe 6asoBoi4 naocKocxn npofiHMKa napaaaeabHo BCKTopy noaa B. 3axeM npo6HMKH 3aKpenaaancb b roaoBKe, n npoaepKa noBxopaaacb nnn Been cOopKii b qeaoM. Teci noKasaJi, hxo BKaaa ocho- BHoii KOMnoHeHTM (1,6 Tji) npM pacnoaoaceHnn /(X napajuiejibHO axon KOMnoHeHTe cocxaBna 2-3 Fc. OKOHnaxeabHaa Koppenuna pesyjibTaxoB npn MSMepeHHH nonepeHHHX KOMnoHeHT Bx n Bz npoBo^naacb npH yexa- HOBKC KapeXKH B MaKCMMajIbHO OflHOplWHOH HaCXM MarHMXHoro no JIB, x.e. rfle Bx = Bz = 0, a By = Bmax. 9xo nosaojiHJio npn aHajmae pesyjibiaxoa ynnxHBaxb bosmohchmc oiiimGkh npn nsMepennn nonepenHux KOMnoHenx na-aa nexoHHocxn c6opKH n nepeMeajeHna Mexannama b qeaoM.

3. OnpefleJieHne noBxopaeMocxn Beniopa MarHnxnoro noaa npn MHoronpax- non nepenojiiocoBKe xona nnxannji aaeKxpoMamnxa. Ona cocxaanjia 0,1 %.

4. HaMepenne Kapxw seKxopa MarHnxnoro noaa npn naMeHennn anana xoxa nnxanna gjieKxpoMarnnxa b ceMn naocnocTax no bhcoxc MarHnxa. Ilpn nepenojiiocoBKe ncnoJibaoBajica peat mm paaMarnnyMBanna MarHnxa. 3na- neHne MarHnxnoro noaa npn naMeneHHOM anane xoKa nmaHm sjieKipo- MarHnxa oxjinnajiocb ox aHaneHna MarHMXHoro noaa npn HOMMHaabHOM pe>KHMe na 0,3 %. Jinx ycxpaHenna axon ouih6kh (ao 0,025 %) naMepena noapoGHaa Kapxa MarHMXHoro noaa nocjie nepenoarocosKn xona.

5. Jinx MOHHXopnHra MarHMXHoro noaa b npoqecce 3KcnepnMeHxa b aaaope MarHnxa cxannoHapHO ycxanoBaen flX. IIpoBeaena KaanGpoBKa sxoro aaxnnKa b npoqecce MarnnxHbix naMepeHnn npn ochobhmx pe*HMax.

3aKJiK)HeHHe

OcHOBHue napaMexpH naMepnxeabHoro KOMnaenca.1. KoannecxBO HeaaBncMMbix naMepnxeabHbix KanaaoB - 3.2. .UnanaaoH naMepaeMHx MarHnxHbix noaen - 04-2 Ta.3. Tohhocxb naMepeHna MarHMXHoro noaa - ± 0,02 %.4. PaSoHHn ananaaoH nepeMeiqeHna aaxnnKOB:

saoab ocn X - 2400 mm, —1150 mm < X < +1250 mm, c niaroM 50 mm;aaoab ocn Y - 320 mm, —120 mm < Y < +200 mm , c inaroM 40 mm;Baoab ocn Z - 3780 mm, -1720 mm < Z < +2060 mm, c raaroM 20 mm.

5. ToHHocxb ycxanoBKH aaxHHKOB no ocbm X, Y, Z - 0,1 mm.

Aoxopbi GaaroflapHH B./%. KeKeanaae n B.^. KaaarnHy aa nocxoaHHoe bhh-Manne k flanhoS pa6oxe n BcecxopoHHioio noAAepxuty npoenxa.

5

JIwxepaTypa

1. A.H.Ajieea m #p. Ha6jiiofleHMe onapoBaHHoro 6apwoHa E° b 3KcnepmvieHTe SKCHAPM. KpaxKwe cooSmeHwa OI/IRVL N3 [77]-96, c.31-46.2. V.K. Makoveev. Hall Three-Channel Magnitometer (H3M).Proceedings of the 9th International Magnet Measurement Workshop IMMW-9, (June 19-22, 1995, Sacley, France), vol.2, Sacley, 1995.

PyxonHCb nocTyrama b HSflaTeJifcCKHii otobji 26 flexa6pa 1997 ro«a.

The Publishing Department of the Joint Institute for Nuclear Research offers you to acquire the following books:

Index Title

94-55 Proceedings of the International Bogoliubov Memorial Meeting. Dubna,1993 (216 p. in Russian and English)

E7-94-270 Proceedings of the Workshop on Physical Experiments and First Results on Heavy Ion Storage and Cooler Rings. Smolenice, 1992 (324 p. in English)

E2-94-347 International Workshop «Symmetry Methods in Physics». In Memory of Professor Ya.A.Smorodinsky. Dubna, 1993 (2 volumes, 602 p. in English)

E4-94-370 Proceedings of the IV International Conference on Selected Topics in Nuclear Structure. Dubna, 1994 (412 p. in English)

E4-94-386 Proceedings of the VI Trilateral German-Russian-Ukrainian Seminar on High-Temperature Superconductivity. Dubna, 1994 (340 p. in English)

D2-94-390 D.I.Blokhintsev. Proceedings of the Seminars. Dedicated to the 85th Anniversary of the Birthday of D.I.Blokhintsev. Dubna, 1995 (271 p. in Russian and English)

E3-94-419 Proceedings of the II International Seminar on Neutron-NucleusInteractions (ISINN-2) «Neutron Spectroscopy, Nuclear Structure, Related Topics*. Dubna, 1994 (363 p. in English)

D13-94-491 Proceedings of the XVI International Symposium on Nuclear Electronics and VI International School on Automation and Computing in Nuclear Physics and Astrophysics. Varna, 1994 (246 p. in Russian and English)

013,14-95-49 Proceedings of the International Symposium on Muon and PionInteractions with Matter. Dubna, 1994 (304 p. in Russian and English)

03-95-169 Proceedings of the International Seminar ADVANCED PULSEDNEUTRON SOURCES: Physics of/at ADVANCED Pulsed NeutronSources. PANS-II. Dubna, 1994 (336 p. in Russian and English)

01-95-305 Proceedings of the XVII Workshop on Neutrino Detector IHEP—JINR. Dubna, 1995 (178 p. in Russian and English)

E3-95-307 Proceedings of the III International Seminar on Interaction of Neutrons with Nuclei. Neutron Spectroscopy, Nuclear Structure, Related Topics. Dubna, 1995 (356 p. in English)

03,14-95-323 VII School on Neutron Physics. Lectures. Vol.l. Dubna, 1995 (356 p. in Russian and English)

Index Title

E10,11-95-387 Proceedings of the ESONE International Conference RTD’94 on REAL TIME DATA 1994 with Emphasis on Distributed Front-End Processing. Dubna, 1994 (358 p. in English)

D15-96-18 Proceedings of the International Workshop Charge and Nucleon Radii of Exotic Nuclei. Poznan, 1995 (172 p. in Russian and English)

E9-96-21 Proceedings of Vii ICFA Beam Dynamics Workshop on «Beam Issues for Multibunch, High Luminosity Circular Colliders*. Dubna, 1995 (198 p. in English)

E2-96-100 Proceedings of the 3rd International Symposium «Dubna Deuteron-95». Dubna, 1995 (374 p. in English)

E2-96-224 Proceedings of the VII International Conference ((Symmetry Methods in Physics*. Dubna, 1996 (2 volumes, 630 p., in English)

E-96-321 Proceedings of the International Conference «Path Integrals: Dubna’96». Dubna, 1996 (392 p. in English)

E3-96-336 Proceedings of the IV International Seminar on Interaction of Neutrons with Nuclei. Dubna, 1996 (396 p. in English)

E3-96-369 Proceedings of the X International Conference ((Problems of QuantumField Theory*. Dubna, 1996 (437 p. in English)

E3-96-507 Proceedings of the International Workshop ((Polarized Neutrons for Condensed Matter Investigations*. Dubna, 1996 (154 p. in English)

D 1,2-97-6 Proceedings of the International Workshop ((Relativistic Nuclear Physics: from MeV to TeV». Dubna, 1996 (2 volumes 418 p. and 412 p. in English and Russian)

E7-97-49 Proceedings of the 3rd International Conferense ((Dynamical Aspects of Nuclear Fission*. Slovakia, 1996 (426 p. in English)

El,2-97-79 Proceedings of the XIII International Seminar on High Energy Physics Problems. Relativistic Nuclear Physics and Quantum Chromodynamics. Dubna, 1996 (2 volumes, 364 p. and 370 p. in English)

Please apply to the Publishing Department of the Joint Institute for Nuclear Research for extra information. Our address is:

Publishing Department Joint Institute for Nuclear Research Dubna, Moscow Region 141980 RussiaE-mail: publish@pds.jinr.dubna.su.

A/iees A.H. h ap. Pl-97-368HsMepeHHe noiia cneKTpOMerpHHecKoro MarHHxa ycTaHOBKH 3KCHAPM

VcTaHOBKa 3KCHAPM Hcnojibayerca jna HayaeHHa xapaKxepxrcxHK poiimenna h pacnaga ouapoBaHHbix qacjHU h noncica 3K30thh6ckhx ajtpoHOB h pacnojioxceHa b HCHTpoHHOM KaHane 5H ycKop-HTejM y-70 (HOB3, r.IIpoTBHHo). 3jieKrpoMarHHT cneKTpoMerpa HMeer BHeumne pasMepbi 4,485 X 3,196 x 3,058 m3 h anepxypy2,740 x 0,489 w2.

HsMepeiiHe MarnuTHoro nojia ocymecrBJianocb xpexKOMnoHeHXHbiM xojuiob- CKHM MaraHTOMexpOM B aBXOMaXH3HpOBaHHOM peatHMe Ha CB33H C nepCOHaJlbHMM KOMHbioxepoM. Pa6oHaa oGnacxb H3MepeHHH cocxaBHJia 2,40 x 0,32 x 3,78 m3. B pa6oxe naexca onHcanne H3MepHxenbHOH annapaxypbi h npoLtenypbi H3MepeHHti. ripHBeaenbi pesyjibxaxbi n3MepeHiiii, jtaexcn ouewca hx tohhocxh.

Pa6oxa BbinojiHCHa b JlaSopaxopHH cBepxBbicoKHX SHepraii OMMH npn nojt- aepacxe Pocchhckoxo tjjouaa cpymaMenranbin,ix uccnenoBWHH, rpauxbi 95-01-00737» 96-02-18734.

npenpHHT O&benHHeHHOro HHCTHTyra smepabix HccjieaoBaHHH. RyGua, 1997

riepeBoa aBxopoB

Aleev A.N. et al. Pl-97-368Measurement of Spectrometric Magnet Field of EXCHARM Setup

The EXCHARM spectrometer is used for studying charm, strange and exotic hadrons. It is located at the neutron 5N channel of U-70 accelerator (Protvino). The EXCHARM dipole magnet has external size 4.486 x 3.196 x 3.058 m3 with aperture 2.74 X 0.489 m2. The field measurement was made by three- component Holl magnetometer on-line computer in measurement region 2.40 x 0.32 x 3.78 m3. The apparatus and methods of the field measuring are described. The results of the measurements of the magnetic field are presented. The estimation of the measurement precision are given.

The investigation has been performed at the Laboratory of Particle Physics, JINR, and supported by the Russian Foundation for Basic Research, grants95-01-00737 and 96-02-18734.

Preprint of the Joint Institute for Nuclear Research. Dubna, 1997

PeaaKTop E.FO.LUaTaaoBa. Maicer H.A.KnceaeBort

rioanMcaHO b rieaaTb 03.02.98OopMar 60 x 90/16. OcfjceTHas nenarb. yH.-ma.aHCTOB 0,65

Tnpa>K 410. 3aKa3 50442. Uena 78 k.

HsaaTcabCKHii oraea 06beannenHoio HHCTH iyra aaepubix HccaeaoBanHii Ay6aa Mockobckoh o6aacrn