H.Taureg Technical Forum June 2003 1

B and T monitoring

•News on

•B field mapping

•B field monitoring

•Temperature monitoring

H.Taureg Technical Forum June 2003 2

B field mapping

• measuring machine for dipole is being constructed

• solenoid machine to be modified

• mapping in September /October 2004

H.Taureg Technical Forum June 2003 3

Dipole measuring machine LHC-b, view along beam

H.Taureg Technical Forum June 2003 4

Dipole measuring machineLHC-b, view of vertical plane through the beam

H.Taureg Technical Forum June 2003 5

Solenoid measuring machine

sensors

rotation axis

rail

chariot

H.Taureg Technical Forum June 2003 6

Sensor head for solenoid

H.Taureg Technical Forum June 2003 7

56.5 mm30 mm

56.5 mm

30 mm

precision hole for dowel pin

hall probes

ADC

addressing

thermistor

mux

Hall probe plate

H.Taureg Technical Forum June 2003 8

probe 1

probe 2 probe 3

thermistor

glass cube

“bond”

support

Hall probes

H.Taureg Technical Forum June 2003 9

NMR and Hall probes

NMR

Hall

H.Taureg Technical Forum June 2003 10

• Try to monitor ‘environment’ inside L3 solenoid and UX cavern

• Temperature probes NOT part of any specific sub-detector

• Counting rooms (PX, SX) and racks not included in this job

Temperature probes

H.Taureg Technical Forum June 2003 11

Temperature probes

H.Taureg Technical Forum June 2003 12

8 along cavern roof,

4 above cooling units

along gangways

above racks below muon arm

Locations in the cavern

H.Taureg Technical Forum June 2003 13

Locations on the support frames

18 probes around outer rim of support frames,

3 times along beam direction, at the two ends and in the center,

54 total