ITSAMS Installation September 26 2007

On September 23 2007 David Truesdale, Bjørn S. Nilsen and Lodovico Riccati were able to install 2 of the 4 ITSAMS mirror assemblies. In the evening of September 25 2007, they were able to install the other two. Later that evening the final work on the ITS was done and the SSD protective cover was removed. By the morning of September 26 2007, the support platform was mostly removed, just one piece left to help install the part which are used to move the TPC in place. These pictures where taken at that time.

ALICE's Point 2 site at CERN

ALICE's Point 2 site at CERN A ALICE's Point 2 site at CERN B ALICE's Point 2 site at CERN C

Here is a view, from just outside of the gate, of the CERN site Point 2 where the LEP L3 experiment used to be and now where the ALICE detector is being installed. In the center is the main building where the primary access to the underground site is located and were all of the electronics and control facilities are located for ALICE.

The ALICE magnet with A side doors open The ALICE magnet with A side doors open A The ALICE magnet with A side doors open B The ALICE magnet with A side doors open C The ALICE magnet with A side doors open D The ALICE magnet with A side doors open E The ALICE magnet with A side doors open F


Here is the ALICE magnet with it's A side doors open. In front of it is the blue Delphi frame used to support the TPC during installation. On that frame is a platform with rails used to support the ITS and its A side cables during installation. Around the TPC, which is pushed out to give access to the ITS on the other side, is the Space frame where a few TOF and TRD super modules have been installed and the HMPID is attached. On the left side is where the EMCAL and its support structure will be installed.

ITS Temporary Support Upper
In this rather dark picture you can just make out the A side of the TPC with the ITS support platform and rails. It on this side of the TPC that the ITSAMS cameras will be installed.

ITS Temporary Support Middle
Here, again in a rather dark picture, you can see the structure used to carry the ITS down into the pit. This structure is connected to rails which are in the TPC and are attached to the Muon absorber on the other side. These rails will eventually be removed. The plastic tubes are temporary water cooling line used by the SDD group to test their systems while ALICE is in this practically assembled state.

ITS Temporary Support Lower
Here, again in a rather dark picture, you can see the open end of this ITS temporary support. At this end, small pins can be controlled to rails or lower the ITS while it is in its final position. This allows for the TPC to smothery travel over the ITS and easily connect to the ITS via its support pins. The is also, at this end, a mechanism which was used to move the ITS through the TPC into its final.

Patch panel P0 i side (?)
Viewed from above is the Patch panel 0.0 and 0.1 (i side?) as viewed from above.

Patch panel P0 o side (?)
Here is the o side patch panel 0.2 and 0.3 also viewed from above.

Rack A12 Top front Rack A12 Bottom front
Here is the front of Rack A12, where the SDD low voltage power supplies are located, only a few shown which are wrongly marked as SSD. In this rack the ITSAMS will have one 1" high rack unit.

Rack A12 Top Back Rack A12 Middle Back Rack A12 Bottom Back
here is shown the back of rack A12.

North west of Mont Blanc
Here is shown the cards in the back of the low voltage power supplies in rack A12. The ITSAMS will use two of these power supply modules in one of the create in this rack.

The left side view, looking away from the beam dump towards the A side, of the installed ITS
The left side view, looking away from the beam dump towards the A side, of the installed ITS A The left side view, looking away from the beam dump towards the A side, of the installed ITS B The left side view, looking away from the beam dump towards the A side, of the installed ITS C
Here is the left side view of the Installed ITS detector. The TPC c-side is in plane view. The metal TPC cooling panels are shown to the left. The ITS and its cable trays are on the right.

The right side view, looking away from the beam dump towards the A side, of the installed ITS
The left side view, looking away from the beam dump towards the A side, of the installed ITS A The right side view, looking away from the beam dump towards the A side, of the installed ITS B The right side view, looking away from the beam dump towards the A side, of the installed ITS C The right side view, looking away from the beam dump towards the A side, of the installed ITS D
Here is the right side view of the Installed ITS detector. The TPC c-side is in plane view. The metal TPC cooling panels are shown to the right. The ITS and its cable trays are on the left.

Installed ITS right side.
Here is the right side of the installed ITS.

Installed ITS right bottom side
Here it the right bottom side of the installed ITS.

Installed ITS left side
Here is the left side of the ITS as installed.

Here is the left bottom side of ITS
Here is the left bottom side of the ITS as installed.

The rest of this September 26th 2007 day is devoted to preparing the for moving the TPC back to its final position. During the last few cm, the ITS will be raised up so that it can be lowered onto the TPC hooks. All during the TPC movement, to be done September 27th 2007, a survey of the beam pipe location will be performed to assure that there are no problems. Additionally, during the last few cm, a visual inspection of the ITS and TPC will be done to make sure there are no problems when the ITS placed on its final TPC mounting hooks.

After the movement has finished, we, the ITSAMS team, hope to get one of the first opportunities to install at least 3 of the 4 camera system. The 4th will have to wait until the TPC has been surveyed in place. One of the survey rods is in the way of the installation of camera 1.

More pictures to come.