AD/SSC/Tech.No.83
AcceleratorDevelopmentDepartment
BROOKHAVEN NATIONAL LABORATORY
AssociatedUniversities, Inc.
Upton,New York 11973
SSCTechnicalNote No.83
SSC-N- 645
CONSTRUCTIONAND TEST OF 1.SM DIPOLE DSSO13
C. Goodzeit, J. F. Muratore, P. Wanderer
June24, 1989
CONSTRUCTION AND TEST OF l.8M DIPOLE DSSO13C. Goodzeit, J. F. Muratore, . wanderer
June 24, 1989
S1ZThThARY.
This magnet was the first to be assembled with"line-to-line" fit of the yoke-collar assembly. The taperedkeys were inserted in the collars using both vertical andhorizontal force, as is standard. The magnet quenchperformance was good. At 4.35K, it reached a plateau at 6.9Tafter two training quenches. After a thermal cycle themagnet’s only quench below plateau was within 1% of the plateaucurrent. The magnet reached ST with little additionaltraining. Erratic performance at ST was traced to themagnet’s hookup to the test stand. The multipoles were verygood. The strain gauge data indicated that the coils were notunloaded at 7.4 kA. The results have been summarized in aconference paper Appendix A. This note adds quench locationand strain gauge data to that presented in the paper, andupdates the multipole analysis.
QUENCH HISTORY AND LOCATION
With DSSO13, as with previous 1.8 m SSC dipole magnets,the quench test procedure consisted of training by ramping upthe magnet current at a rate of 16A/s until a quench wasgenerated, and repeating this until the quench currentsachieved had reached a four-quench plateau, within an allowablerange of 30A. Since it was shown to have no apparent effect onthe plateau quench currents in the DSSO12 tests, the timebetween quenches was reduced to 1/2 hour. Training wasperformed at the SSC operating temperature of 4.35K nominal,where the central magnetic field is 6.9T, then again at thesubcooled temperatures of 3.85K and 3.35K, where the centralfield is about 7.6T and 8.1T, respectively. This schedule wasthen repeated after a warm-up to room temperature and recoolingthermal cycle. The training at subcooled temperatures isdone to test the magnet to the limits of its mechanicalperformance under the stress of the higher magnetic fieldspossible at the lower temperatures. In addition, at the end ofeach set of plateau quenches, strain gauge measurementsweremade every 500A until the magnet quenched.
Figure 1 gives the quench history of the magnet and showseach of the training and conductor-limited plateau quenchesby symbols which distinguish between upper and lower coilquenches. As in DSSO11, DSSO12, and DSSO14, all quenches inDSSO13 occurred in the inner coils, as expected. The trainingquenches were located mostly in the ramp-splice region of theupper or lower inner coils. All conductor-limited plateauquenches started in the upper inner coil except for one quench
Page 2
after a strain gauge run. As seen in Fig. 1, the quenchcurrents are all very consistent except in the 8.lT test afterthe thermal cycle, as will be discussed later. However, onstudying the quench location details in Table 1, it is noticedthat the quench locations are not quite as consistent as inDSSO14. Most plateau quenches at 6.9T were closer to theramp-splice and were in the same location as the trainingquenches; whereas, in DSSO14, the plateau quenches were all ina long middle straight section of the pole turn T16SS. At7.6T and 8.lT, however, the plateau quenches in DSSO13 weremostly in Tl655, as in DSSO14.
Details of each quench as to temperature, current, andlocation, are given in Table 1. As can be seen, theconductor-limited quenchesat 4.35K, 3.85K, and 3.35K were ataverage plateau values of 6919 - A, 7570 A, and 8095 A,respectively; the corresponding calculated short sample limitsat each temperature were exceeded by 1%, 3%, and 4%,respectively. It should also be noted that the average quenchcurrents at each test temperature after the thermal cycle wereslightly lower, by about 0.4%, than they were before thethermal cycle. This can be accounted for by a 0.02K increasein the magnet temperature.
As can be seen from Fig. 1, there were eight trainingquenchesduring the testing schedule. Four of these originatedin the short straight section adjacent to the ramp-spliceregion, close to the tap 16G tap l6G is about 1/2 inch intothe GlO box which houses the ramp-splice itself. Three werein the lower inner coil and one in the upper inner, where allthe plateau quenches occcurred. This differs from DSSO14,where three out of the four ramp-splice training quencheswerein the upper coil like the plateau quenches. Calculation ofthe approximate quench origin locations for the ramp-splicetraining quenchesplaces the start point about 1 - 2 inchesfrom the tap 16G on the straight section side of the GlO box.The first three such quenchesstarted outside but near the GlObox while the last one happenedinside the box. These quencheswere essentially the same as for DSSO14.
The magnet initially quenched, at 6.9T, in the upper coilin the left hand straight section of turn 13, which is adjacentto the thick copper wedge on the midplane side. Its locationcan be placed about 1 inch behind the ramp and this puts it inthe same axial region as the ramp.
The next training quench started in the lower coil poleturn return end section T16RE, but in the left hand straightsection part about 1 1/2 inches from spot heater 4. The otherquench which occurred in the T16RE was at 8.1T before thethermal cycle and was located at the position of spot heater
4, about 11 inches from the tap l6C. Since the quenchpropagation times for these are similar to those for a quenchtriggered by the spot heater 4 itself, it is inferred that theT16RE training quenchesmight be related to the presence of
Page 3
that device on the cable.
As can be seen by studying Fig. 1, the second T16REtraining quench was the second training quench which occurredat 8.lT before the thermal cycle and was separated from thefirst quench a ramp-splice quench in the lower coil by anapparent plateau quench. This behavior indicates that at STthe magnet first trained in the lower coil and then had totrain again in the upper coil. Similar behavior was seen inDSSO14 at 8.lT.
The only aberrant behavior exhibited by DSSO13 appeared at8.1T after the thermal cycle, where, after apparently showingone training quench data for locating this quench origin waslost, the magnet quenched at abnormally low currents. Thestart locations for these quenches,denoted"L" in Fig. 1, wereplaced at lead connections outside the magnet and the quencheswere therefore not due to any problem with the magnet itself.
Voltage tap data indicate that these aberrant quenchesoriginated in a section of magnet lead which passes from verylow field to very high field. From the plots of magnet voltageversus time in Fig. 2 it can be seen that the development of atypical conductor-limited quench top is much faster than thedevelopment of the abnormal quenches bottom, indicating thatthe quench originated at a current far below the conductorlimit. Note that the vertical and horizontal scales of theplots are quite different. Data from the abnormal quencheswere compared with data at the same temperature and currentgenerated by a spot heater located in the high field region ofthe magnet midplane. These data indicated that the abnormalquenchesoriginated in a low-field region. The lead region ofthe magnet was inspected after testing and a GlO piece wasfound touching the lead at the location of the quenches. Thedesign of this piece was changed to prevent this from happeningagain.
The plateau quenchesall occurred in the pole turn of theupper inner coil as expected and as was also seen in DSSO14.All were in the left hand straight section of that turn Tl6,but, unlike DSSO14, where all were located in the middlestraight section, the 6.6T plateau quenches in D55013originated in the ramp splice region straight section, closerto tap 16G than to tap 16A. In the other cases, the quencheswere on the other side of tap 16A.
STRAIN GAUGE DATA
The coil stress data at significant points in the historyof the magnet are given in Table 2 and in Fig. 3. A plot ofthe coil stress versus current squared up to 7.4kA is containedin Appendix A.
Page 4
FIELD QUALITY DATA
A summary of the geometric multipole coefficients of thecentral 76cm of the magnet straight section is given in Table 3for both cold and warm measurements. The results are given inthe standard "units" l0**4/Bo at 1 cm radius. For the coldmeasurements,the geometric terms are obtained by averagingup-ramp and down-ramp data from 2 to 3 kA to eliminate theeffect of magnetization currents. For the warm measurements,the geometric tens are obtained by averaging data at +lOA and-bA to remove the effect of residual iron magnetization. Forboth cold and warm data, the unallowed 16-pole and 18-poleterms have been used to obtain the location of *the measuringcoil with respect to the magnet. Thus, the values for b7, a7,b9, and a9 given in Table 4 are not meaningful. Upper limitsfor these terms can be obtained from the data before centeringand are at most 0.02 units at 2.5 T.
A plot of the sextupole versus current, which demonstratesthe small effect of saturation, is given in Appendix A. Morecomplete presentations of the multipole data are given ininternal "prompt reports," TMG 395 uncentered data and TMG398 centered data. At 1. 8kA, the N measurement of thetransfer function gave the result 1.04596 T/kA.
TIME-DEPENDENT EFFECTS
A measurementof the change in sextupole with time atinjection current is given in Fig. 4. The setup for thismeasurementwas the same as for the last several magnets:spontaneous quench, AC cycle to 5.3kA, 8 minute wait at 25Aidle current, ramp to 300A 3A overshoot, hold constantcurrent, measure. Ramps were 16A/sec. The time dependenceislarger than that observed in DSS6 and DSS11. Curiously, DSS13has smaller filaments in both inner and outer coils than DSS6and DSS11.
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TABLEDSSO13 & DSSO14 COIL STRESS SUMMARIES
February 24, 1989
1. D55013 SUMMARY
PACK1 - Straight Section AVG. AVG. DELTA DELTADATE Near Lead End INNER OIJTER* INNER OUTER
10/ 5/88 After Collaring 7386 477710/10/88 Before Shell Welding 6534 4373 -852 -40410/18/88 After Shell Welding 6691 5601 158 122810/20/88 On Ass’y Floor 6619 5545 -72 -5612/16/88 in Dewar at 4.3 deg K 4220 5143 -2399 -40212/26/88 In Dewar at 298 deg K 6072 5360 1853 21712/27/88 In Dewar at 4.3 deg K 3853 4950 -2219 -411
Average of Gauge #5&6
PACK2 - Transition Sectionat Return end
10/ 5/88 After Collaring N/A N/A10/10/88 Before Shell Welding 8144 4390 N/A N/A10/18/88 After Shell Welding 8202 5639 58 124810/20/8812/16/88
On Ass’y FloorIn Dewar at 4.3 deg K
81113508
56013238
-91-4604
-38-2363
12/26/88 In Dewar at 298 deg K 7360 5543 3853 230512/27/88 In Dewar at 4.3 deg K 3319 3280 -4041 -2264
2.OSSO14 SUMMARY
Packi - Straight Section
10/19/88 After Collaring 9390 67811/19/89 On Ass’y Floor w/ Shell 9048 7927 -342 11391/25/89 In Dewar at 4.3 deg K 4820 4809 -4228 -3117
Pack2 - Return End Transition
10/19/88 After Collaring 11816 80051/19/89 On Ass’y Floor wI Shell 10345 8207 -1471 2021/25/89 In Dewar at 4.3 deg K 7128 6054 -3217 -2153
Table III
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DSSOIO l.8m Initial Test and training quench locations
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Quench Number Location of training quenches:
1 quench turn 13 T13 left-hand side, same axial regionas ramp-splice. Turn 13 Is on mldplane side
of thick wedge.
3 quenches In ramp-splice R-S region, 2"±l" past 010
ptece in straight section Tap 16G. Both coils.
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L’PEPD BNL-41.898VEST WTWU I.S M SSC MUULL.. ‘ifs witu ITURATUD ULIGN
P. WaIIIICTCr. J.O. Cnilinghain, P. Dahi. G. Ganctis. hi. Garber, A. ChoW. C. Goodzcii. A. Greene. 3. Barren. S. Kahn.E. KcIly, C. Morgan. 3. Muruiorc. A. Prodgil. 52. Ronrer.W. Sampson. It. Shun. P. Thompson.6. WiIIcui
Brooknavca NatiOnal Laboratoryiptoi. New York 11973
Abstract
We report reulis from two 1.8 m.Ion thpoltz built as pan ofhe Superconducting Super Collide; SSC R&D prognw. theac:nagncis contain design cflanges madeon both Ibe 1.8 in and tbclull-length 17 cvi dipates to improve quench performance. mquetkjeW uniformity, and inanuUcturabilüy.the mapea reach S Twith Iiiic !73ifl1fl9.
Lnhroducuon
The good quench performince ot wo recent 17 in modelWpoies II established the principlesocededfor producingJnagDCIScapableof reaching the conductor curTent-canyinglimli with littleraining. Desicti changcs hayc bccn madc to impkmcrn ihcsc prin
ciples andother impronmcnlsin a more production-orientedway.Excepi For length. the LB in magnet series2.31 has the featuresofitte SSC dci. which is band on a two-layer cosine thetacoilwidi 4 cm aperlurc.As compazcd to the J7 m Onign length SSC,Iip..l.s. Ihcsr ii .u ul;a1tuen are a a*icr andmore ccnnnlniczit way
iii Ic$I.ii UC%ISII cIIaIIsu. ru ctwet uutg,IcI jictlutiuwice. IIICCdipoics have beenheavily iuslzuazenagdwith vohagcian. stainsauses and spol healers.Ezissius;baling sets thc magnet length at
I . m. The mgncI arc tested in liquid helium in vertical dewa:.The design changes incorponicd in :hcsc magnets arc briefly
sumimirized here. lIic coil, were wound wish a reylied crosssection which included asymmetric copper wedges and weremolded hi a single-cure ptocedure. In both magnets. th collarswhich compress Ihe coils were locked with iapercdkeys.When oneof mc magnciwas assembled, however, no ptcasust was applic.d topu,ih the keys So ftc coil isis. The yokc innac diamclcr was reducedID obuun a iine-Io.Iine zero clearance fli lo UIe collars. The yokelamirnitons were assembled to produce a monolithic yoke sinicture.The two yo&e halves were keyed with respect to each other at themidpLinc.
ti Design and Cunsaruciiun
The cnil apenure is 4 cm and iftc coil ouier diameter is $ cm.The yokc rnncr diameteri II.! cm; its ovtcr dksmctcr is 26.7 cm.The magnet is deigncd to openic al 6.6 1 central Acid in 4.35 KIseiluili weal i cwrrcnl of oJ kA. Fuawws cit Inc inaguct dcsigsiwhich arc not discussed in detail here are as ducribed in the SSCConceptual Dcsign Repon CDt. 4
CahW
The cable used in the irutct outer quaner coiLs 01 bothmagnets came from a siqie reel. It had a critical cuncnldensity of2.77 2.47 kA/mm 8i $ T. 4.22 IC, a coppcr-lo-supcrcDnducwsr:IIic nt 1.47 1.74 .aIilamcnl size of 6 $pm. and a relailvercst,itancc flILIC between room tcmpcralurc and 10 K o63 123.
Coil
A cross scction of the coltared coil in the yoke and heliumI i shuwI in Fit. I. The coil cross setaion dcsignaIcd
is ; Fin’’ .witlge ,,g,,,-nnJiaI block design. J5J The designthi len wily sIiIll ly tro.l% Ihc previowl dc%icPI C35KA. tic cI.aiu8c
unite to Furitter reduce ilOwtd mullipoics.
I’i1. I CoIanz4 u,I ...d yokc.
54_n .I._._ C
S-S
Tb eliminate cbs abznion of wedge Lnulation during coilmolding. cflc outcr radius o tift wedgeswas madewitb thc samcurvisurt n the ioit. The result, in this non-radial design, was ;tnasymmetric wedse.
To inipron coil moLding time, a "single size at the shim usedin Lbs curing fiztun wu determinedfrom a sizeme*scrementmadein lit. samefixture when the B-stage epoxybadbecomejust warmenoughto liquffy. Also. funhar twigcs wCtc nwdc to ha cuii endsto make them strongcr and more unifnnn in Om.
Coil AsscmbJy and ColIaS
Th. 010 0rzmp.splicCnumbly wu modified to better support and prestreathe cabic. This pieceencapsulate;the thner coilcable as the caDic IDOVC$ 10 Itt own coil radius; i1 also eflcupsulabs the splice bciwcen die inner and outer coils.
Al in earlier models 121, the collars were punched ironiNiironic 40 stainlcn steal andspot welded in pain, with Uic pairsthcn Icft.flgflt altcruarnd to prevent wist in the collared coil.Tapered keys were used in ihe collaring For DSSOI3. flit usimiprocedurefor tapered key assembly was followed. wheteby theovenll preMra* ou the mipel duflng coflartng is minimized byusing bosh vertical 3n4 horizoital force to scat the keys. A anespcritncutto lest di11crczivt bclwccn this prueSure and aucuiblywith rccian1u&r k7s. 055014 was assembled whit ;apctai kcybut with no significinc horizontal force.Yoke and Shell
Theinncr radius of the yoke bminaiionz was L63 mm suiaiicrthan on previousmagnetsso that therewould be a lint-to-line zeroclearancefit ot yoke and unstresiedcoflan at room temperature.
For the portion at he yoke which covered the straight secUonof the magnel. 15cm-long stacks of nsndard iron lantinacions werealternated with single scainlen steel Inninaiions punched to provide channels or radial helium flow during quenches.AM ihclaminations wac cIked oh rods and then comprcucd Lu ‘t prude.termined Iengih to oblain a monoIiihiC axial siruclure. The yokeend inctuding the Ias 5.2 cm of the inner coil nraighi .ccuoncontainedonly stainlesssieci amStions. boadeci IoseLbn.
To assure cozsccl relative pniuonmg. flac two yoke hadves
were keyed logeffier r the midplanc with iron keys. as shown inFig. l.The slainles; sceel half shellswere then welded around ihe
C-
Irs wet..cj.. r .acsac.*e - .- t.
%Vort pcrtornwd under the auspicts of the US. Depanment at Encrgy
yokc. Ibe welding wus dune by hMnd. by Iwo wcidcrs. mc mdzused to stack bc yoke were wilfldrwn atcr flue welding wascompleted and the end plates installed. A modesi preioad & fewhunWtd pounds was applied to the coil ends via the one-piece3M. I -cm thick end plates.
Test RcuIls
Thc initial quench program was carried out at cmpcraIurcsclose o those of SSC operation.4.35 K. The helium lemperaturewas hen lowered in two 0.5 K stepsto determinethe mcchanicaiimics of magnet performance. After a cycle io room temperature.
these steps were repcated.As seenin Figs. 2 and 3. both tuagnetireached the conductor 1jun11 at fleith above 8 t with little trainingand uhe training was retained after a tflarnal cycle. The maximumquenchcun.enc in DSSOI3 was8.11 k’.; in DSSOI4 it wit 8.14 tAThc curreni rcquircd ic reach 8.0 T is approximately L07 kA.
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Quench Number30
Fit 2 Quench performanceol DS5013. The solid 111w indicaics ahcrntal ycle. Quenches oflginating in ‘tic lower upper lime, coil atnd,C,led by squaresdiamonds. I is ‘he calculatedquench cisrrtfll.
on IIIcaurcuIunIs inadc on a than au.pk ol Ihc cable. QucnchcadcsIsnat4 L wcn duc to a %cs* stand Inn.
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hit S3U1C 83 ib the
Eachmagocihadmore than IOU voftage taps, nearly all in Ieinner coils. Quinclacswhich occurredwhen Ihe magnel reachedthecurrenI-canyingcapacily o the conductor pIateatC quenchesoTiginatcd in thccxpcctcd place.the poic writs of Ihe inner coils. Al4.35 K. platen qucnchcx wcrc at 6.93 kA. wproduwblc wiuhiluabout 0.0 LA.
Taking the locations ol ihc non-plaieau qucuches of ilic Iwomagnets n a group, Ihe most common origin wn the secIéoit Ofinner coil cable 3-10 cm beyond the 010 ramp-splice assembly.Other qucnchcs also originated in the pole turn, in and near Ibenon-lead cad, and in the turn ant io the largesi wcdgc.
The longicudinal quenchvelocities gcnnafly agree with thosein 17 s SSC dipoles. 61 These veiociflesare substantiallybigDerthan thou measured ii 4.3 a SSC dipoles 71 md in I m SSCinodets bulb rn 1St ISL Thesevejoclija arealsointer thin woukdbe calculatedin the adiabatic approximalion.[61 The reasonfor thisdiscrepancyis not undentood at this Urns.Azimuthal quenchveloc.tics an about the samefor alt thus magnets.
Stress Measuremeniz
Eacho the magnetswas instrumentedwiIb Iwo bcam-typCstrain gauge packs. 91 One packwaslocated in the straight section.near the leadend. The other was th, last pack in the uraifli sectionat cite non-leadend.Each packhad four gauges tor eachcoil. plusceinpcnlurecomptuadaggauges. Avenge data from the gaugepack in the siraighi scclion o DSSOI3 arc presented in Fig. 4.Gauge-to-gaugevatiationsin siren make lbs av.nçc stresssonic-what uncertain;however, the linear variation with I does indicatechat the coils do not become unloadedat the highest cuntolmeasured.7.3 kA.
8000
7000
6000
3000U,4OOO
O 3000
2000
1000
a0 .7 2s7 3.7 ‘.7
CURRENT, AMPS SQUARCO
?ig 4 Ann1s lacer coil suns vs. or sinS gaugepack in DS3013- iccuoc.Field Strength and Mulcipoles
lion:Thenotation for muhipolea is defined by the following equa
+ iB - B, b5 ++ jyfl
where a is the dipole field. x and y arc the hocizocuatand verticalcoordinatesmeasuredfrom the maguetcenter. ft is convenient todefine a muiiápolc isnit" as 10t o Ibe dipoLe ficid, with themultipole evaluated at a radius ol 1 cm.
Magnetic fleld measurements from the central section of themagneuire reportedin Tabk I. The vanaliono he sextupolc withcunenr is shown in Fig. 5: The iuuitipoles were measuredwith a
Qtienc Qain
i
V
t30
U
‘a=0
0
9000
a
a
U
UaU
0’
A
S
2
0
5.7 5.7
Fig. 3 Quench pcrfocruancc of DSSIfl4. Nolailon Upftvo%ss utt.
76-cm long roIating coil centered axially in me magnet. Measure-menu have been analyzed to remove feeddowu and magnetizationcffecrc. 1 2
o a2-
C
:6
C
aC
aI-
Fig. 5 Vanacion of sexttzpotewith cunent in DS5014.The OUfl ateup-ramp data; Ihe squares. down-ramp data.
Insofar as can be determined from iwo I. m magnets, thehigher order Icrins meet the SSC iwo-dimcnsiomd loicranccs. 101The low order terms deserve witty CQmmC*C. The quadzupoketerms cm be affecied by Ihe hand-welding involved in welding ifle.ThcIl around the yote. Useof an atuomazicweiding machine,to beintroduced in the future. may reduce these ienns. Allowedrnuktipolcs can be aItccted by eflangesin production procedures.such as the implementation of the Iine.lo.Iine yoke-collar fit. Iishould be possible io compensate or these effects by makingfurther smaJl changes in the coil ernst section.
Tabic IMoliupok Cocincients I uniC * IO B. r a I cm
CuvIIicicuiI
Measured SSC Tolerances body
DSSOI3 LSS014 knudo’ii rnts Sysientasic
a’ -.55 -2.53 0.7 0.2
": -65 -.01 0.6 0.!3, 43 -.12 0.7 0.2
aJ -fl -.01 0.2 0.2-.02 -.03 0.2 -
-.02 .01 0.1 -
i, -.0! -.01 0.2 -
., .00 .00 0.1 -
b1 -.55 .42 0.7 0.2I’. -2.Sfl -1St, 2.0 1.0b3 -.19 .01 0.3 0.1b4 -.59 -.S2 0.7 0.2
00 -.01 0.! 0.04h P2 04 0.2. LU?b, -.01 .0% 0.2 0.1h .05 .03 0.1 0.2
The flcid crcngcb was mcasurcd wâlh an NMR probc a 1.3 T.Themeasuredwanderfunctionswere 1.0460TIkA or DSSOI3aód1.0443 T/kA for DSSO14. The calculated value is 1.0439 TflcA.with design shim.
Rcfcrenccs
1 1. Strait ciii.. "Fesaof Pull ScaleSSCR&D DipokMagciets, prescuted at ibe AppliedSuperconducucicyCoufennce.San FnIICISCQ. CA..Aug. 21-25. 1982.
ii P. Wanderer et al, "Test Results from Recent I .3 inSSC Model Dipoies.’ ibid.
31 P. Wandereret ii., 1esz Results from 1.Sm SSCModel Magnaz, IEEE Trans.on Magneiics24, no.2, pp. 816419. March 1988.
4J C. Taylor and P. DanA, "Dipole Magnets: .4 BriefDescription. in SSC ConceptualDesign MagnetDesign Detsiis SSC-SR-20208.1986.
5 0. Morgan. C358D: A Revision of the SSC CoilDesign C358A. Magnet Division Note 25.I SSCMD-183, Brookhaven NanonalLaboratory. Upton.MS. 11973 1988 unpubllifled.
6J A. Dewed et aL. Dsvctupmcnt ol S poulancuinQuenchesin Full-Length SSC R&D DIpOIcL Contribution to this conference.
71 0. Owens sad A. Prodsil, Rcsulia from Meatcr*InducedQuenchesof a 4.54 m ReferenceDesign 0Dipole or the SSC. IEEE Trans. Magneiics.Vol.Mag-23. no. 2. pp. 495-498.Manh 1987.
81 W. V. Masseazafli. "}ieaIcr Induced Quenches inSSC Model Dipoles." ibiS, pp. 934-937.
9] C. I. Goodzeit ci th. "Measurementof InternalForces in SupewnduclingAcc*inror Magnetswith Strain Gauge traasducen,’presented ai theApplied Supc;conductivityConference.San Francisco. CA.. Aug. 21-25, 1988.
tb SSC Spcciflcation NumberSSC.MAG-D-IOIO Dc*ccrnber 1988.
-.
TECHNICAL NOTE DISTRfltTION
BLDG. 911 BLDG. 902
AD Library A. BlakeR. Cohen J. 0. CottinghantP. Hughes 1 N. Garberplus 1 for ea. author A. Chosh
C. CoodzeitA. Greene
BLDG. 460 It. Gupta3. Herrera
N. P. Sainios S. KahnE. Kelly
FOR SSC PAPERS A. MeadeC. Norgan3. Nuratore
FNAL A. Prodel].14. Rehak
P. Mantsch E. P. Rolirer3. Strait Ti. Sampson
t. ShuttLBL-CDG P. Thompson
P. WandererT. Bush E. VillenR. Coombes . 3. ICaugerts - CDG-902-AP. Dab].T. KirkR. SchermerJ TompkinsIt. Vesterfeldt 2 BLDG. 1005
D. Brown.1. ClausE. CourantF. DellA. FloodE. B. ForsythH. HahnS. Y. LeeT. Ludlam.1. HilutinovicC. ParzenH. Roades-BrownS. RuggieroJ. SonderikerS. Tepekian
S & P in fa2net Division for all MD vavers,S & P in Accelerator Physics Division for all A? Dapers.S & P in CnoQenic Section for all CryoRenic papers-
and J. Brjns. R. Dazradi. H. Huldebrand. IL Kol].mer.
