QXA and QXB

Nominal parameters - layout database

Length MQXA = 6.37 m
I nominal MQXA = 6450 A
I ultimate 7000 A
Nominal gradient MQXA = 205 T/m

Length MQXB = 5.5 m
I nominal MQXB = 10630 A
I ultimate 11410 A
Nominal gradient MQXB = 205 T/m

MQXB are designed to operate with a maximum operating gradient of 215 T/m - 70 mm aperture/1.9 K. However, trained to 230 T/m.

Point 8

Maximum normalized strength

kqx.r8 = -.00950981818181818 ; kqx.l8 = .00950981818181818 with beta* = 10 m at 7 TeV.

Gardients at 7 TeV

Gradient MQXA = MQXA strength*7000/.2998 = 222.044 T/m
Gradient MQXB = MQXB strength *7000/.2998 = 222.044 T/m

Required Currents - layout database

Current QXA = 6986.26 A
Current QXB = 11513.8 A

Required currents IP8 at 7 TeV - measured transfer functions.

Current QXA = 7433.63 A

Current QXB = 12365.7 A

i..e. around 7400 A on the outer, 4900 A on the inner.

Outer power converters out of DCCT limits

• RPHF - outer - I rated 8000 A, DCCT 7000A
• RPHGC - inner - I rated 6000 A, DCCT 5000A

Point 5

Max strength MQXA point 5 = .00873014128728414

Max strength MQXB point 5 = .00873018181818182

Gradients - 7 TeV

Gradient QXA = KqxAMax 7000/.2998 = 203.839 T/m
Gradient QXB = KqxBMax 7000/.2998 = 203.84 T/m

Required Currents - layout database
Current QXA = (BA/BnomMQXA) InomMQXA = 6413.48 A
Current QXB = (BB/BnomMQXB) InomMQXB = 10569.9 A

Required currents IP5 at 7 TeV - measured transfer functions.

Current QXA = 6778 A

Current QXB = 11315 A

ML April 08