SHORT STRAIGHT SECTION TYPES IN THE MATCHING SECTIONS
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1 CERN CH-1211 Geneva 23 Switzerland the Large Hadron Collider project LHC Project Document No. CERN Div./Group or Supplier/Contractor Document No. IN2P3-IPNO/FL/cc EDMS Document No Date: Engineering Specification SHORT STRAIGHT SECTION TYPES IN THE MATCHING SECTIONS Abstract This Engineering Specification defines equipment codes in the LHC Matching Sections for the Cold Mass (CM) mechanical assemblies, cryostats and Short Straight Section (SSS-MS) types from Q4 to Q7. A total of 27 different types of CM mechanical assemblies, 33 cryostat types and 41 different SSS-MS types are identified. Prepared by: Franck Lutton lutton@ipno.in2p3.fr Checked by: Vittorio Parma Herve Prin Karl-Martin Schirm Approved by: Alain Poncet LHC Short Straight Sections List: A. Ballarino, Ch. Boccard, D. Bozzini, J. Casas-Cubillos, S. Chemli, P. Cruikshank, P-M. Dos Santos de Campos, L. Evans, D. Hagedorn, C. Hauviller, K. Kershaw, Ph. Lebrun, F. Lutton, M. Mayoud, K- H. Mess, M. Modena, R. Ostojic, V. Parma, J-L. Périnet-Marquet, A. Poncet, H. Prin, P. Proudlock, J- P. Quesnel, Th. Renaglia, G. Riddone, J.M. Rifflet, L. Rossi, I. Ruehl, R. Saban, K-M. Schirm, H. Schmickler, M. Schmidlkofer, R. Schmidt, G. Schneider, F. Seyvet, N. Siegel, A. Siemko, F. Simon, P. Strubin, L. Tavian, J-Ph. Tock, Th. Tortschnanoff, R. Trant, G. Trinquart, R. Veness, M. Vitasse, L. Walckiers, R. van Weelderen, S. Weisz, R. Wolf
2 Page 2 of 9 History of Changes Rev. No. Date Pages Description of Changes 0.1 draft Version 0.1-draft prepared by Emmanuel Roy 0.2 draft Version 0.2-draft checked by V. Parma, H. Prin, K-M. Schirm and sent for approval to the LHC Short Straight Section list. Deadline: 8 December draft , 7 Integrated IFS Box configuration in table 2 and 3; added DFBA instead of DFBM for LMQMK cold mass; added QQMAO instead of QQMO for LQTFC SSS MS equipment code in table draft Version sent for approval to the LHC Short Straight Section List. Deadline: 02 April , 2 5 Version 1.0 following comments given on version 0.4-draft. First line, DFBM/DFBL/DFBA has replaced DFBM/DFBL. Version 1.0 released. 1.1 draft 1.1 draft Version 1.1 draft prepared by F. Lutton, checked by C. Boccard, H.P rin and S. Chemli. 33 types of cryostat instead of 32 and 41 types of SSS-MS instead of 39. Addition of reference. Addition of QQMAU cryostat code in table 4. Introduction of BPM types in table 5 and addition of QQMAU cryostat code and LQNFD, LQNFJ SSS MS codes. Correction of QQMAU, LQNFD and LQNFJ codes in table 6. Addition of reference. Sent for approval to distribution list. Deadline: 14 January No modification asked after approval. Version 1.2 released.
3 Page 3 of 9 Table of Contents 1. INTRODUCTION NAMES S FOR CM ASSEMBLIES S FOR CRYOSTATS S FOR SHORT STRAIGHT SECTIONS SSS-MS, CRYOSTAT AND COLD MASS LOCATIONS REFERENCE...9
4 Page 4 of 9 1. INTRODUCTION This Engineering Specification defines the equipment codes of the Cold Mass (CM) mechanical assemblies, cryostats and SSS types in the LHC Matching Sections, Q4 to Q7. The magnet configuration in the present Engineering Specification is based on LHC optics version 6.4. The cryogenic parameters are based on the Cryogenic Diagram Drawings [5]. The electric power scheme is defined by the Engineering Specification LHC-DCC-ES-0003 [1]. The type of BPM is defined by the Engineering Change Order LHC-BP-EC-0001 [7]. 2. NAMES 2.1 S FOR CM ASSEMBLIES In the MS region, there are 2 main SSS MS Cold Mass (CM) assemblies: Half shell technology cold mass assembly for quadrupole magnets type MQM, MQY, MQML and MQTLH. The general equipment codes for this type are LMQ_ and LMQT_. Inertia tube technology cold mass assembly for quadrupole magnets type MQ, MQTL. The general equipment code for his type is LMQT_. In total, 27 different types of SSS-MS cold mass assemblies are identified; their equipment codes are listed in Tables 2 and 3. The assigned cold mass equipment takes into account: The cold mass mechanical assembly (number of supports, lengths, etc). See Cold Mass Reference drawings [2]. The combination of MQ quadrupole types and corrector magnets. The front covers type, depending on the cryogenic scheme which is directly linked to the QRL interface type and the helium phase separator type (only for type Q7), see Table 1 [6]. The diode types installed in the cold masses are of type MQ. The type of diode is given according to the drawing LHCDCQAA0002. The configuration of IFS box, depending on the type of cold mass. Table 1 - Cold Mass Interface with Cryogenic Lines For Q7 3 types Type Jumper Type Exchanger tube (line X) Line X Upstream Interface A QRLCB/QRLCC None Phase Separator type N B QRLCA/QRLCG Line X Phase Separator type P C QRLCF/QRLCH Line X Type Z (plug / no plug at cryostating stage) For Q4 Q6 2 types Type Jumper Type CL (cool down and magnet level) LD (Quench) D QRLFC/QRLFF/QRLFD/QRLFE ID 40 mm ID 50 mm E QRLEA/QRLEC CL1 ID 20 mm CL2 ID 20 mm ID 30 mm
![The electric power scheme is defined by the Engineering Specification LHC-DCC-ES-0003 [1]. The type of BPM is defined by the Engineering Change Order LHC-BP-EC-0001 [7]. 2. NAMES 2.](/docs-images/42/2949774/images/page_4.jpg "1 S FOR CM ASSEMBLIES In the MS region, there are 2 main SSS MS Cold Mass (CM) assemblies: Half shell technology cold mass assembly for quadrupole magnets type MQM, MQY, MQML and MQTLH.")
5 Page 5 of 9 In addition, some corrector magnets are powered via the DFBM/DFBL/DFBA instead of the Dipole Current Feed Through (120 A). The units concerned are: Q4 at IR1 and IR5, Q4, Q5 at IR6, Q6 at IR2L, Q4, Q5 at IR2 and IR8. Table 2 - Cold Mass Equipment Codes for Half Shell Technology Cold Mass Assembly QUANTITY Total: 46 QUADRUPOLE CORRECTOR CM INTERFACE WITH CRYOGENIC LINES CORRECTOR POWERING IFS BOX CONFIG. LMQMB 1 MQM MCBCB A DCF 120A HCQQI011 LMQMA 1 MQM MCBCA C DCF 120A HCQQDIS011 LMQYH 2 MQY MCBYB D DCF 120A HCQQMIS013 LMQYA 1 MQY MCBYA E DCF 120A HCQQMIS013 LMQYB 1 MQY MCBYB E DCF 120A HCQQMIS013 LMQYL 2 MQY MCBYB E DFBM HCQQMIS010 LMQYK 2 MQY MCBYA E DFBM HCQQMIS010 LMQMN 4 MQML MCBCB E DCF 120A HCQQMIS014 LMQMM 4 MQML MCBCA E DCF 120A HCQQMIS014 LMQYC 2 MQY MCBYB+MCBYA+MCBYB D DFBL HCQQMIS010 LMQYD 2 MQY MCBYA+MCBYB+MCBYA D DFBL HCQQMIS010 LMQMF 4 2MQM MCBCA C DCF 120A HCQQDIS012 LMQME 3 2MQM MCBCA B DCF 120A HCQQDIS012 LMQMG 1 2MQM MCBCA A DCF 120A HCQQDIS012 LMQMK 1 MQM+MQML MCBCA E DFBA HCQQMIS010 LMQMJ 3 MQM+MQML MCBCA E DCF 120A HCQQMIS013 LMQTI 2 6MQTLH MCBCA E DCF 120A HCQQMIS012 LMQTJ 2 6MQTLH MCBCB E DCF 120A HCQQMIS012 LMQYJ 2 2MQY MCBYB+MCBYA+MCBYB D DFBM HCQQMIS011 LMQYI 2 2MQY MCBYA+MCBYB+MCBYA D DFBM HCQQMIS011 LMQYF 1 2MQY MCBYB+MCBYA+MCBYB E DFBM HCQQMIS011 LMQML 2 2MQM MCBYB+MCBYA+MCBYB E DFBM HCQQMIS010 LMQYE 1 2MQY MCBYA+MCBYB+MCBYA E DFBM HCQQMIS011 Table 3 - Cold Mass Equipment Codes for Inertia Tube Technology Cold Mass Assembly QUANTITY Total: 4 QUADRUPOLE CORRECTOR DIODE TYPE CM INTERFACE WITH CRYOGENIC LINES CORRECTOR POWERING IFS BOX CONFIG. LMQTE 1 MQ+MQTL F/D MCBCC A C DCF 120A HCQQDIS010 LMQTS 1 MQ+MQTL F/D MCBCC B C DCF 120A HCQQDIS010 LMQTF 1 MQ+MQTL D/F MCBCD B B DCF 120A HCQQDIS010 LMQTR 1 MQ+MQTL D/F MCBCD A A DCF 120A HCQQDIS010
6 Page 6 of S FOR CRYOSTATS The general equipment code for SSS-MS cryostat assemblies are: QQMA_ for cryostat Q4 to Q6. The magnets are fitted in individual cryostat, with stand alone or semi stand alone units operating at 4.5 K. See cryogenic drawings [4]. QQMB_ for cryostat Q7. These cryostats are located at the end of the long continuous arc cryostat beside the electrical feed box DFBA. These units are operating at 1.9 K. See cryogenic drawings [4]. At Q6 IR2 left (injection of beam 1), Q6 IR8 right (injection of beam 2) and Q4/Q5 at IR6 (extraction of the beams) the MS units are specific. In function of BPM support length (232 mm for BPM/BPMR/BPMC and 478 mm for BPMY), the QQS vacuum vessel is different. The Helium Level Gauge Port is 60 mm moved along the Y axis. 33 different types of SSS-MS cryostats are identified; their equipment codes are defined in Table 4. Table 4 - Equipment codes for SSS MS cryostats QUANTITY Total: 50 STANDARD VACUUM VESSEL N support-type-length QRL INTERFACE QQS SIDE BPM SUPPORT LENGTH JUMPER HEIGHT JUMPER ORIENTATION axis QQMAA 1 2-arc-4350mm QRLFF LEFT 478mm 1060mm -X QQMAB 1 2-arc-4350mm QRLFE RIGHT 478mm 1060mm -X QQMAC 2 2-arc-4350mm QRLEA LEFT 478mm 1060mm -X QQMAD 4 2-arc-4350mm-SP1 QRLEA LEFT 478mm 1060mm -X QQMAE 4 2-arc-5625mm QRLEC RIGHT 232mm 1060mm -X QQMAF 4 2-arc-5625mm QRLEC LEFT 232mm 780mm -X QQMAG 1 2-arc-7025mm QRLFD LEFT 478mm 1060mm -X QQMAH 1 2-arc-7025mm QRLFC RIGHT 478mm 1060mm -X QQMAI 1 2-arc-7025mm QRLFC LEFT 478mm 780mm -X QQMAJ 1 2-arc-7025mm QRLFD RIGHT 478mm 780mm -X QQMAK 1 3-dipole-9405mm-SP2 QRLEA RIGHT 232mm 2210mm -Y QQMAL 2 3-dipole-9405mm QRLEA RIGHT 232mm 1060mm -Y QQMAM 1 3-dipole-9405mm QRLEA RIGHT 232mm 1060mm -X QQMAN 1 3-dipole-9405mm-SP3 QRLDE RIGHT 232mm 1930mm +Y QQMAO 1 3-dipole-9405mm QRLEA RIGHT 232mm 780mm -X QQMAP 2 3-dipole-9405mm QRLEA LEFT 232mm 780mm -X QQMAQ 2 3-dipole-10360mm QRLFE LEFT 478mm 1060mm -X QQMAR 2 3-dipole-10360mm QRLFF RIGHT 478mm 1060mm -X QQMAS 1 3-dipole-10360mm QRLEA RIGHT 478mm 1060mm -X QQMAT 1 3-dipole-10360mm QRLEA LEFT 478mm 1060mm -X QQMAU 2 3-dipole-10360mm QRLEA RIGHT 232mm X QQMBA 1 2-arc-4350mm QRLCC LEFT 232mm 1040mm -X QQMBB 1 2-arc-4350mm QRLCH LEFT 232mm 1040mm -X QQMBC 1 2-arc-5625mm QRLCF LEFT 232mm 760mm -X QQMBD 1 2-arc-5625mm QRLCG LEFT 232mm 760mm -X QQMBE 1 2-arc-5625mm QRLCC LEFT 232mm 760mm -X QQMBF 1 2-arc-5625mm QRLCH LEFT 232mm 760mm -X QQMBG 2 2-dipole-8000mm QRLCF LEFT 232mm 1040mm -X QQMBH 2 2-dipole-8000mm QRLCA LEFT 232mm 1040mm -X QQMBI 1 2-dipole-8000mm QRLCF LEFT 232mm 2190mm -X QQMBJ 1 2-dipole-8000mm QRLCB LEFT 232mm 760mm -X QQMBK 1 2-dipole-8000mm QRLCH LEFT 232mm 760mm -X QQMBL 1 2-dipole-8000mm QRLCA LEFT 232mm 2190mm -X SP1 are vacuum vessels type 2-arc-4350 mm modified. SP2 is a vacuum vessel type 3-dipole-9405 mm modified. SP3 is a vacuum vessel type 3-dipole-9405 mm modified.
![These cryostats are located at the end of the long continuous arc cryostat beside the electrical feed box DFBA. These units are operating at 1.9 K. See cryogenic drawings [4].](/docs-images/42/2949774/images/page_6.jpg "At Q6 IR2 left (injection of beam 1), Q6 IR8 right (injection of beam 2) and Q4/Q5 at IR6 (extraction of the beams) the MS units are specific.")
7 Page 7 of S FOR SHORT STRAIGHT SECTIONS The combination of cold masses, cryostats and type of BPM on V1 and V2 lines, leads to 41 different types of SSS-MS assemblies. Table 5 - Equipment codes for SSS MS types SSS-MS CRYOSTAT COLD MASS BPM on Line V1 BPM on Line V2 QUANTITY TOTAL: 50 LQNAA QQMBB LMQMA BPMCA BPMCA 1 LQNAB QQMBA LMQMB BPMC BPMC 1 LQNDA QQMAF LMQMM BPM BPMR 2 LQNDB QQMAF LMQMN BPMR BPM 2 LQNDC QQMAE LMQMN BPMR BPM 2 LQNDD QQMAE LMQMM BPM BPMR 2 LQNFA QQMBK LMQMF BPM_A BPMRA 1 LQNFC QQMBH LMQME BPM_A BPM_A 1 LQNFD QQMBH LMQME BPM_A BPMRA 1 LQNFE QQMBL LMQME BPM_A BPM_A 1 LQNFG QQMBJ LMQMG BPM BPMR 1 LQNFI QQMBG LMQMF BPM BPM 1 LQNFJ QQMBG LMQMF BPM BPMR 1 LQNFK QQMBI LMQMF BPM BPM 1 LQNLB QQMAM LMQMJ BPM BPMR 1 LQNLD QQMAL LMQMJ BPM BPMR 1 LQNLF QQMAN LMQMJ BPM BPMR 1 LQNLH QQMAK LMQMK BPM BPMR 1 LQNMA QQMAU LMQML BPMR BPM 2 LQTAA QQMBC LMQTE BPM BPM 1 LQTAB QQMBD LMQTF BPM_A BPM_A 1 LQTAC QQMBF LMQTS BPM_A BPM_A 1 LQTAD QQMBE LMQTR BPM BPM 1 LQTFA QQMAP LMQTI BPM BPMR 1 LQTFB QQMAP LMQTJ BPMR BPM 1 LQTFC QQMAO LMQTJ BPMR BPM 1 LQTFD QQMAL LMQTI BPM BPMR 1 LQYAA QQMAC LMQYA BPMYA BPMYB 1 LQYAB QQMAC LMQYB BPMYB BPMYA 1 LQYAC QQMAD LMQYK BPMYA BPMYB 2 LQYAD QQMAD LMQYL BPMYB BPMYA 2 LQYBA QQMAB LMQYH BPMYB BPMYA 1 LQYBB QQMAA LMQYH BPMYB BPMYA 1 LQYCB QQMAI LMQYC BPMYA BPMYA 1 LQYCD QQMAJ LMQYD BPMYA BPMYA 1 LQYCF QQMAG LMQYC BPMYA BPMYA 1 LQYCH QQMAH LMQYD BPMYA BPMYA 1 LQYEB QQMAQ LMQYJ BPMYB BPMYB 2 LQYED QQMAR LMQYI BPMYB BPMYB 2 LQYFA QQMAS LMQYF BPMYB BPMYB 1 LQYFC QQMAT LMQYE BPMYB BPMYB 1
8 Page 8 of 9 3. SSS-MS, CRYOSTAT AND COLD MASS LOCATIONS Equipment Codes Table 6 - SSS-MS types and locations in the machine See Mechanical Layout Drawings [3] L E F T IP R I G H T Q7L Q6L Q5L Q4L IR1 Atlas Cold Mass LMQMF LMQMM LMQMN LMQYC LMQYD LMQMN LMQMM LMQME Cryostat QQMBG QQMAE QQMAE QQMAG QQMAH QQMAE QQMAE QQMBH SSS-MS LQNFJ LQNDD LQNDC LQYCF LQYCH LQNDC LQNDD LQNFD Q7L Q6L Q5L Q4L IR2 Alice injection Cold Mass LMQMF LMQMK LMQYF LMQYJ LMQYI LMQML LMQMJ LMQME Cryostat QQMBI QQMAK QQMAS QQMAQ QQMAR QQMAU QQMAL QQMBH SSS-MS LQNFK LQNLH LQYFA LQYEB LQYED LQNMA LQNLD LQNFC Q7L Q6L Q5L Q4L IR3 Cleaning Cold Mass LMQTE LMQTI LMQTJ LMQTF Cryostat QQMBC QQMAL QQMAO QQMBD SSS-MS LQTAA LQTFD LQTFC LQTAB Q7L Q6L Q5L Q4L IR4 RF Cold Mass LMQMB LMQYA LMQYH LMQYH LMQYB LMQMA Cryostat QQMBA QQMAC QQMAA QQMAB QQMAC QQMBB SSS-MS LQNAB LQYAA LQYBB LQYBA LQYAB LQNAA Q7L Q6L Q5L Q4L IR5 CMS Cold Mass LMQMG LMQMN LMQMM LMQYC LMQYD LMQMM LMQMN LMQMF Cryostat QQMBJ QQMAF QQMAF QQMAI QQMAJ QQMAF QQMAF QQMBK SSS-MS LQNFG LQNDB LQNDA LQYCB LQYCD LQNDA LQNDB LQNFA Q7L Q6L Q5L Q4L IR6 Dump Cold Mass LMQYK LMQYL LMQYK LMQYL Cryostat QQMAD QQMAD QQMAD QQMAD SSS-MS LQYAC LQYAD LQYAC LQYAD Q7L Q6L Q5L Q4L IR7 Cleaning Cold Mass LMQTR LMQTI LMQTJ LMQTS Cryostat QQMBE QQMAP QQMAP QQMBF SSS-MS LQTAD LQTFA LQTFB LQTAC Q7L Q6L Q5L Q4L IR8 LHC-B - Injection Cold Mass LMQMF LMQMJ LMQML LMQYJ LMQYI LMQYE LMQMJ LMQME Cryostat QQMBG QQMAM QQMAU QQMAQ QQMAR QQMAT QQMAN QQMBL SSS-MS LQNFI LQNLB LQNMA LQYEB LQYED LQYFC LQNLF LQNFE
9 Page 9 of 9 4. REFERENCE [1] Powering Layout of the SSS Correction Scheme, LHC-DCC-ES-0003, P. Burla. [2] Cold Mass Reference Drawings: LHCLMQ 0002, 0003, 0006, 0009 to 0016, LHCLMQTF0001, 0002, LHCLMQTE0004. [3] Mechanical Layout Drawings V6.4: LHCLSX 0001 to [4] Cryogenic Diagram Drawing: LHCLSQR_0034 to 0048, LHCLSQR_0060, [5] Interface to LHC Machine Cryostat Drawings: LHCLJQRJ0001, 0005, 0007, 0009, 0013, 0015, 0023 to [6] Minutes Line X for Q7 Cold Masses 28/04/03 E. Roy EDMS N [7] ECR LHC-BP-EC-0001 Changes to the beam instrumentation for the LHC 22/11/04 C. Boccard EDMS N
![4: LHCLSX 0001 to 0016. [4] Cryogenic Diagram Drawing: LHCLSQR_0034 to 0048, LHCLSQR_0060, 0061.](/docs-images/42/2949774/images/page_9.jpg "[5] Interface to LHC Machine Cryostat Drawings: LHCLJQRJ0001, 0005, 0007, 0009, 0013, 0015, 0023 to 0026. [6] Minutes Line X for Q7 Cold Masses 28/04/03 E.")
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