1. Calorimeter Status Electronics Installation and Commissioning
Online Calibration
Unpacking and Timing calibration
First Energy Scale estimations

2. Calorimeter: Electronics Installation
LAr & HV:
all cryostats filled
all HV (2kV) on all channels
LAr purity (< 0.4 ppm O2 equiv)
LAr temp. and purity monitored
PreAmp & BLS:
all PreAmps & PS (-1 -ICD)
all Pulsers & PS installed
all BLS PS + spares installed
~ 200 BLS boards still in production (~50/week)
ICD
5 tiles installed on ECS-SW
PMT box, HV + LV power, electronics pulser installed
Cables run through winders
pORC in work
Calibration and characterization ongoing in cosmic ray test-stand
Infrastructure
almost all in place
10/12 quadrants ready for read-out
CC commissioned at 1%, ECS started
all Calorimeter equipped after April-shutdown

3. Calorimeter: Trigger & Read Out
Trigger summers/drivers in CC-S
complete CC-SE and 2/3 CC-SW installed
overlap with instrumented region of SMT/CFT and ICD
Trigger in CC completed by end of April
Ordering parts (resistors) for EC’s
fully installed trigger by summer
ADC & Timing and Control:
Run I ADC’s and modified ADC controllers working fine
12 T&C boards operational
T&C controller prototype working: final board ~6 weeks
FPGA code under development
PIB prototype working, final board without functional modifications
EPROM code finalized and to be burned

4. Calorimeter: commissioning
Shifts during access
U. Bassler, G. Bernardi, M. Bhattacharjee, V. Bhatnagar, L. Duflot, T. Eltzroth, S. Fu, M. Gao, R. Hauser, M. Hohlfeld, B. Kehoe, N. Parua, M. Ridel, D.Schamberger, M. Tuts, D. Whiteson, V. Zutshi
Cal_elec -
ADC counts /  vs channel
mapping checks to be implemented

5. Calorimeter: Online Software
Cal_elec
offline use via SAM as basis for refined analysis
test program for pulser calibration:
unpacking of T&C information
unpacking of PIB information
developing separate branch for L1 Cal trigger commissioning and calibration
em-channel
had-channel
“delay ramp”
“dac ramp”
Delay = 50

6. Calorimeter Pedestal Calibration
Online Calibration –
L3CalCalib calculates pedestals and limits on L3 scriptrunner nodes
CalibManager stores data in Oracle online-DB
Python tools extract values to pickle files for download
pedestal calibration done for CC and ECS and used for 0-suppression

7. Calorimeter Online Calibration
Online Calibration developments:
Automatic validation and extraction tools needed for pedestals and zero suppression limits
Implementation of automated ramps with pulsers for gain calibration
Scheme for running calibrations still needs to be worked out (frequency, #events, #DAC/delay settings, corrections, etc.)
data base tables for offline-database designed – might want to retrofit online (estimate 25 GB for 3 years)
development of online/offline transfer and DB-Manager code for use of calibration constants in the offline reconstruction

8. Calorimeter Crate Unpacking
To be added to ADC unpacking:
Simultaneous read out of gain1/gain8
Unpacking of 3 consecutive crossings for timing calibration
Timing & Control - Crate (0x4C)
Contains all meta-data (L1 crossing, analog-cell read out, PIB information etc.)
Existing unpacking from cal_elec to be generalized
L1CAL - Crate (0x10)
Structure similar to Run I but there are significant changes in particular for L3 readout

9. Calorimeter Timing Calibration
Most crates timed between T&C and BLS crate controler
timing of L1 trigger framework done
FPGA modification of 1s necessary
Fine timing calibration has to be done with collisions or beam-gas events
special ReadOut mode of 3 consecutive BC (Tibor Kurca)
fit in order to obtain timing for maximal response to be adjusted within one crate
needs modification of FE unpacking

10. Sampling Weights
sampling fractions and dead material corrections are combined in optimized sampling weights
EM section
optimized layer weights for the 4 EM layers calculated using electrons in plate geometry.
weights calculated as a function of the tower ieta.
HAD section
weights for the fine hadronic sections calculated using single pions.
weights for the EM layers are kept fixed relative to their electron values.
coarse hadronic sections are being appropriately left out from the optimizations.

11. First energy scale estimation
dynamic range of electronics adjusted to be the same as in Run I
absolut energy scale known at ~ 10% level
estimation of absolut scale using pulsers: (Pierre Petroff/Gisele Martin)
measurement of charge injected into the preamps
simulation necessary to compare charge injected by physics signal w.r.t. calibration signal
needs modification of sampling weights into sampling fractions + dead material corrections
estimated precision 5-10%

12. Outlook Calorimeter in rather good shape
useful data from the CC within the next weeks
em + jet triggers in CC after 2 weeks shutdown
no useful tracks before September shutdown