Results of dosimeter readings in IR3 and IR7 DGS-RP High Level Dosimetry LHC Collimation WG meeting...
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Transcript of Results of dosimeter readings in IR3 and IR7 DGS-RP High Level Dosimetry LHC Collimation WG meeting...
Results of dosimeter readings in IR3 and IR7
DGS-RP High Level Dosimetry
LHC Collimation WG meeting03/09/2012
LHC Collimation WG
• 100 RPL dosimeters installed during X-mas stop 2011 in Point 1, 3, 5 and 7– on the vacuum chamber close to the collimators,
warm dipoles and quadrupoles– on the coils of warm dipoles and quadrupoles
• Exchange and readout of selected dosimeters on 27/06/2012– Point 1 (6 RPL), – Point 3 (26 RPL)– Point 7 (19 RPL)
03/09/2012
100 Gy 105 Gy 106 Gy
Radio-photoluminescent dosimeter6mm
LHC Collimation WG
Dosimeter positions IR3 left
TCP.6L3.B1
MQWA.E5L3 MQWA.C5L3
TCSG.5L3.B1
MBW.C6L3
1213m to IP
Beam1 Beam 2
Dosimeter positions mirrored on the right side of IP
03/09/2012
LHC Collimation WG
Dosimeter positions IR7 left
Beam1 Beam 2
1180m to IP
TCP.B6L7.B1
MQWA.E5L7
TCSG.A6L7.B1MBW.B6L7
Dosimeter positions mirrored on the right side of IP03/09/2012
LHC Collimation WG
Dosimeter position on collimators
Dosimeters were attached to the vacuum chamber at approximately 2 cm far from the collimator end plate(P. Thonet)
Representative picture, not real location03/09/2012
LHC Collimation WG
Dosimeter position on dipoles
Representative picture, not real location03/09/2012
LHC Collimation WG
Dosimeter position on quadrupoles
Representative picture, not real location03/09/2012
LHC Collimation WG
IR3 – dose to TCP and D3
D4 D3 Q5 TCPTCSG
8.6kGy 3.1 kGy
D4D3Q5
TCP TCSG
15.7 kGy
6.3 kGy
18.0 kGy
9.2 kGy4.4 kGy
5.5 kGy2.3 kGy
03/09/2012
LHC Collimation WG
IR3 – dose to Q5 (E)
D4 D3 Q5 TCPTCSG D4D3Q5
TCP TCSG
81.7 kGy
1.3 kGy 2.3 kGy
297.4 kGy8.0 kGy
1.6 kGy6.7 kGy
03/09/2012
LHC Collimation WG
IR3 – dose to TCSG and Q5 (C)
D4 D3 Q5 TCPTCSG
3.5 kGy 4.2 kGy
D4D3Q5
TCP TCSG
14.3 kGy18.8 kGy
2.4 kGy1.6 kGy2.7 kGy 6.6 kGy
31.0 kGy103.9 kGynot exchanged
03/09/2012
LHC Collimation WG
IR7 – dose to TCP and D3
D4 D3 Q5
TCP TCSG
397.5 kGy
119.8 kGy > 500 kGy
106.3 kGy
302.1 kGy
Q5 D3 D4
TCPTCSG
487.3 kGy
469.1 kGy 297.4 kGy
329.4 kGy
> 500 kGy
03/09/2012
LHC Collimation WG
IR7 – dose to TCSG and Q5
D4 D3 Q5
TCP TCSG
297.4 kGy
Q5 D3 D4
TCPTCSG
478.2 kGy
> 500 kGy
43.7 kGy19.1 kGy
fallen off(487.3 kGy)
25.7 kGy
100.4 kGy
59.6 kGy
03/09/2012
LHC Collimation WG
Summary IR3 and IR7
IR 3left right
IR7left right
TCP 8.6 kGy 3.1 kGy 302.1 kGy > 500 kGy
MWB 6.3 – 18 kGy 2.3 – 5.5 kGy 106.3 - > 500 kGy 297.4 – 487.3 kGy
TCSG 3.5 kGy 4.2 kGy 297.4 kGy 478.2 kGy
MQWA.E 1.6 – 297.4 kGy 1.3 – 81.7 kGy 25.7 – 487.3 kGy 19.1 - > 500 kGy
MQWA.C 2.7 – 103.9 kGy 1.6 – 18.8 kGy
03/09/2012
LHC Collimation WG
Dose values Point 1
252.7 kGy
289.7 kGy171.8 kGy
4.9 kGy 3.9 kGy
26.5 kGy
first magnet after inner triplets and feedbox
03/09/2012