ATLAS SCT Testbeam : August 2002

ATLAS SCT Testbeam

(14 - ) 21 - 28 August 2002 beamtest at CERN H8

Offline Analysis and Preliminary Results (Valencia group)

Scan log file

Module Calibrations and Characterisations

Photos

The last testbeam for 2002. In this beamtest we concentrate on final measurements of the irradiated modules, including the last two barrels, and the two newly irradiated endcaps. If possible, we will include late irradiated barrel modules with new-epi chips.
Volunteers for shifts, especially new people, would be extremely welcome.
People available for shifts (please send me your available dates and times)

Schedule : 14 - 28 August 2002

Preparation of modules and preliminary beam runs during parasitic running: 14 - 21 August
Main installation: 08:00 - 16:00 Wednesday 21 August
Running: 16:00 Wednesday 21 August - 10:00 Wednesday 28 August
Removal from beamline: 10:00 Wed 28 August - 10:00 Thurs 29 August
Following this beamtest, all equipment should be made safe for the winter shutdown.

Modules

10 Slots, plus two end-wall positions, for 12 modules in total.

Modules should be positioned bearing in mind their order of arrival, and the arrangement for the proposed tracking exercises. The pitch of the slots in the chamber is 45mm. Evolving module table:

Name	Type	Irrad?	From/Contact	When ?	Wafer	C-factor	Comment
0026	Barrel	No	Joern/ST	start			Efficiency reference
0097	Barrel	No	KEK	16/8			Unirradiated barrel, new-epi series run, 111 series wafers
0096*	Barrel	Yes	KEK	26/8	Z40859-W07	1.044	Irradiated barrel, new-epi series run, 111 series wafers
Q3*	Barrel	Yes	USA/Felix	26/8	Z38850-W20	1.154	Irradiated barrel, new-epi "fast corner run"
0007*	Barrel	Yes	KEK	start			Irradiated barrel, old-epi
0034*	Barrel	Yes	KEK	start			Irradiated barrel, old-epi
0044*	Barrel	Yes	KEK	start			Irradiated barrel, new-epi "normal corner run"
0047*	Barrel	Yes	KEK	start			Irradiated barrel, new-epi "normal corner run"
k5_308*	Outer F	Yes	FR	19/8			Irradiated outer endcap
k5_310*	Outer F	Yes	CERN-Geneva	start			Irradiated outer endcap
k5_312*	Outer F	Yes	CERN-Geneva	start			Irradiated outer endcap
k5_303	Outer F	No	ST/Jo	start			Unirradiated outer endcap
k5_315	Outer F	Hybrid only	C/G	23/8			Module assembled from unirradiated sensors and an irradiated hybrid.
kb_104	Outer F	No	C/G Mariane	19/8			KB
kb_105	Outer F	No	C/G Mariane	19/8			KB

Modules to be installed in the following slots, arranged for tracking studies of the irradiated modules. Two warm-up/cool-down cycles are foreseen, one on Friday to install k5_315 as soon as it is available after assembly and testing, and one on Monday to exchange irradiated barrels to the two which finish annealing on Monday morning (0096* and USA-Q3*). We will do basic threshold scans at several bias voltages on all modules, i.e., we repeat these basic scans several times as modules are exchanged.


   ID Slot    At start:      Friday:      Monday:

   11  -1     kb_104      -> k5_315
    0   0     0026
    1   1     k5_312*
    2   2     0034*
    3   3     0097
    4   4     0007*
    5   5     k5_310*
    6   6     0047*                     -> 0096*
    7   7     k5_303
    8   8     0044*                     -> Q3*
    9   9     k5_308*
   10  10     kb_105

Program

Comments or suggestions to the program are invited. We plan:

To perform a detailed bias scan at normal incidence of all modules, including the irradiated endcaps with improved front-end settings
To take some high-statistics runs near the operating point with sets of similar irradiated modules (outer endcap and barrel) arranged so that an independent tracking efficiency analysis can be performed.