X.Dong, USTC/LBNL 1Feb. 20th, 04, STAR Collaboration Meeting

TOF Software Progress

Xin Dong, for TOF Group

TOF detectors in Run IVOnline softwareOffline software -- Data base & Geometry -- Makers

- match - calibration - simulation and embedding - MuDstSummary & Outlook

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 2

TOF detectors in Run IV

TPC

pVPDeast

pVPDwest

Au

TOFx

East-TPC

TOFp TOFr

x

y

Au

Some changes this year:

pVPDs moved ~4” further from Z=0 TOFp moved one slot clockwise when facing west from the east side --- read out channels no change (41) TOFr did not move, but the tray size and module positions in the tray changed --- First 20 modules (out of 32) in the tray have read-out electronics ( 72+48 channels totally)

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 3

Online Software

‣ Online software extended to 3 CAMAC crates in order to accommodate the read-out of 48 additional TOFr channels. ‣ new TOF raw data format (41+72+48 channels) required similar changes to the offline DAQ reader. ‣ Clearly we still have issues with the TCD-Bira communications which show up in TOF DAQ. --- mostly due to a hardware problem, not a software problem

-- TOFr HV is now only one channel. Software was updated accordingly and so was its interface with SlowControls. -- TOFp HV. No changes, only updated the Cell Mapping for its SlowControl interface -- TOFr Gas. No changes. -- SlowControls interfaces. Reviewed the Red/Yellow alarm settings and made them available as a document

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 4

TOF Offline Software Framework

STAR/TOF DAQ

TOF Data

TOF Cell/Slat

TOF Hit

TOF Match Maker

TOF Calibration MakerTO

F C

olle

ctio

n

StE

ven

tGSTAR geant hits

TOF DAQ Reader, TOFMaker TOF Simulation Maker

MuDst TOF

TOF MuFill Maker+ MuDst Maker

TOF Mixer Maker

TOF MCCell/MCSlat

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 5

TOF Geometry

Data Base

Find the tracked cell/slat from a HelixCoordinates transferringInitialization from GEANT

TOF configurations --- ready --- pVPD configuration --- pVPD Strobe events configuration --- tof detectors configuration --- tof Tray configuration --- tof Module configurationDAQ mapping --- ready --- tof DAQ mapping

TOF geometry & dbase

Many new introduced structures

Calibration parameters --- ongoing --- tof T0 (timing offset) --- tof Correction (overall) --- tof Correction (each channel)Simulation parameters --- ready --- MRPC simulation parametersTOFp Geometry --- need to be updated this year

GEANT definition change due to the geometry & position change this year

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 6

TOF Collection in StEvent

TOF Data:Raw ADC, TDC in each DAQ channel 42 + 6 + 72 (120)

TOF Cell/Slat:Cells/Slats with track matchedCell/Slat Id, ADC, TDC, associated tracks, projected position

TOF Hit:After calibrationPhysical tof, β, pathlength, etc.

MCCell/MCSlat: Additional MC information

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 7

Ongoing Makers I

TOF Match Maker:

Fired channels from DAQ

Projected cells from global tracksMatched within one pad distance

Get rid of multi-hit cells

Order cells for cross talks

Save those have primary tracks into TOF Cell Collection

TOFp Match Maker already in library,TOFr Match Maker ready to be committed

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 8

Ongoing Makers II

TOF Calibration Maker:

Calibration parameters from dbase

TOF Cell in StEvent

pVPD calibration – start time

TOF Data in StEvent

Time-of-flight correction

Write TOF Hit in StEvent

Waiting for dbase structure ready to do corresponding change for checking in

Fast offline data for calibration

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 9

Ongoing Makers III

TOF Simulation Maker:

Ready to be committed in

Simulation parameters in dbase

Geant hits

Cell response simulation

Write raw ADC & TDC in TOF Data

TOF embedding Makers:TPC embedding

TOF Data from DAQ TOF Data from simulation

Tof Mixer Maker

Tof association MakerNeed corresponding change for dbase configuration read-in

?

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 10

Ongoing Makers IV

TOF in MuDst: ---- MuTof introduced in MuDst

TOF Hit

TOF CellMuTofFill Maker – write MuTof

Corresponding changed MuDSTMaker

Write into MuDst

Ready to be reviewed and committed

Makers summary:Almost all are ready!Need to be committed ASAP before production

pVPD Fill Maker?

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 11

Summary

Online DAQ corresponding change for additional TOFr channels, little changes for other online software

Many new introduced structures in dbase --- calibration structure on the way --- request corresponding changes for the Makers or Utilities

Geometry changes in GEANT due to the position change of detectors this year

Most of the offline Makers are ready to be committed for the coming production

Feb. 20th, 04, STAR Collaboration Meeting X.Dong, USTC/LBNL 12

Outlook

Preliminary timing resolution ~120psPreliminary calibrations for Run IV

Great thanks to the Software Group & … helpers!

With the development of software,important physics will come out soon!

Overall slewing correction