Status of Database and Calibration Project In BES-3 Offline Software System Status of Database and Calibration Project In BES-3 Offline Software System

Status of Database and Calibration Project Status of Database and Calibration Project In BES-3 Offline Software SystemIn BES-3 Offline Software System

Bin Huang, Chunxiu Liu, Dayong Wang, Jianming Bian, Jinfa Qiu, Linli Jiang, Linghui Wu, Qiumei Ma, Yuguang Xie

Jan. 12, 2006

Abstract

The work of this group is one of the important parts in our BES-3 offline software project. And it includes the following jobs:

Framework(Calib), DB, Sub-Detector calibration algorithms, Auto-Job-Sub-Script and Monitor programs.

In this report, I would like to talk about the Status of Database and Calibration for BES-3 in the following way:

• Introduction

• The offline calibration framework

• Database (MYSQL)

• Auto-Job-Sub-Script

• Sub-detector calibration algorithms

• Summary

Status of Database and Calibration Project In BES-3 Offline Software System

一 Introduction

• The experimental data analysis flow

• The significance of offline calibration

• The basic process of offline calibration


e+ e-

Detector

physics

Data(Raw, MC)

Reconstruction

Physics Results

MC

Calibration



The significance of offline calibration

• To guarantee the physics data correction

Raw data Correcting and Scaling

Groups of Coefficient

Rec. and Physics Result

• To track the qualification of the data acquisition

Detector performance Monitor program

Hardware persons

The flow of BES2 offline calibration


The relative parameters after offline calibration



二 The offline calibration framework

• The philosophy of designing the program ( Gaudi, C++, ROOT… )GLAST

• The structure of the framework and the packages

• The calibration data : the metadata, stored in the database(MySQL), and the bulk data (ROOT file)

• Calibration data will be made available for read access according to usual Gaudi practice for TDS data.

http://www.slac.stanford.edu/exp/glast/ground/software/calibration/notes/calib-gaudi_v2.shtml


The offline calibration framework

Data (persistent) Metadata (persistent)

Calibrator

bad strips(XML)

CAL, ACD calibs(XML,ROOT) MySQL rdbms

reference

uses

program, scriptrdbGuiRegister, search

reads

ROOT macros, etc.

writes to

The Packages of the Calibration FrameworkCalibSvc: CalibDataSvc the DataSvc responsible for providing

access to data in a TDS. CalibMySqlCnvSvc the conversionSvc for metadata “conversion” CalibRootCnvSvc CalibXmlCnvSvc

calibUtil: provide the interface between the client of calibration fremwork and the MySQL DataBase

facilities ： supply tools that are commonly used in the framework

rdbGui ： a GUI that can register and write the metadata dbms

rdbModel: contain the classes and interfaces that describe and access a rdb

xmlBase: used for interpret and produce xml files 。CalibData: define the Data Model and corresponding ClassID of each subdetector in the TCDS, including the runfrom and runto numbers in each dataset

the ConversionSvc for bulk data conversion


TCDS StructureTransient (Calibration) Data Store

Calib

MdcCal TofCal DedxCal

vanilla vanilla vanilla

/Calib/MdcCal/vanilla /Calib/TofCal/vanilla /Calib/DedxCal/vanilla

(More)

digi

/Calib/MdcCal/digi



• The Data Model design: MDC, TOF and dE/dx

• The test of the framework: MDC, TOF and dE/dx

• The file written from TCDS

• Works to be continued on EMC and MUC

• The selection(Oracle 、 MySQL 、 Postegre) / installation

• The construction of Metadata list

• Test of the system (Mdc Tof dE/dx)

• Browsing the Database from Website


三 Database (MYSQL)

Field name Who fills Explanation, typical contents

Ser_no Mysql (rdbms) Unique serial # for this record

Calib_type Calibrator Mdc Emc Tof Muc Dedx …

Data_fmt Calibrator XML or ROOT

Run_from Calibrator Start run to which calibration applies

Run_to Calibrator End run to which calibration applies

Sft_ver Calibrator

Cal_ver Calibrator

Cal_par Calibrator

Rec_alg Calibrator

Rec_par Calibrator

Status Calibrator ‘OK’, ‘TEST’, ‘ABORT’

Creator prog (e.g.rdbGui) Name of program or script creating entry

Uid prog (e.g.rdbGui) login id

Enter_time Mysql (rdbms) Time entry was made in database

Data_ident Calibrator Typically file spec.

Input_desc Calibrator Description of input data.

Notes Calibrator Anything else about calibration or conditions under which it was performed that might be of interest.


Data (persistent)Metadata (persistent)

Calibs(XML)

Calibs(ROOT)MySQL rdbms

calibUtilSearch db

reference

uses

executable

library

ConversionServices

(CalibSvc) reads



A very simple script finished#!/bin/bashTIMES=5iter=0while [ "$iter" -lt "$TIMES" ]doecho -n "$iter"boss.exe jobMdcCalib.txtiter=`expr $iter + 1`cp MdcCalConst.root "MdcCalConst$iter.root"echo "MdcCalConst$iter.root created"mv histogram.root "T0histogram_$iter.root"Doneexit


四 Auto-Job-Sub-Script

Manpower saved

• The calibration algorithm for MDC

• The calibration algorithm for dE/dx

• The calibration algorithm for TOF

• The calibration algorithm for EMC

• The calibration algorithm for MuC


五 Sub-detector calibration algorithms

http://epc.ihep.ac.cn/info(04-12)/images/BESIII.jpg

http://epc.ihep.ac.cn/info(04-12)/images/BESIII.jpg

2. The basic calibration method we used

Survival analysis mathod ( 残差分析 )

Δd = ddrift – doca

where ddrift: drift distance

doca: the distance between the track and the hit wire

1. What have we considered ?X-T calibration, T0 calibration, Wire survey calibration, Q-T calibration, and Space resolution calibration.

ΔT0 分布


Start

Initailize （ histo ， calib const… ）

Execute (Rec, Fill the histo…)

Survaval analyse

Correction and Renew the const(XT/T0/…)

Finish

Main classes designed ：

MdcCalibAlg

MdcCalib

MdcCalHistMgr

MdcCalConstMgr

MdcCalEvent

MdcCalGeo finailize( )


3. The flow of the program (MdcCalibAlg)

N

+bookHist()+fillHist()+statHist()

MdcCalHistMgr

+getRecInfo()+getResidue()

MdcCalEvent

+rdCalConst()+wtCalConst()+updateCalConst()

MdcCalConstMgr

+initDcCal()+getEvent()+exeDcCal()+endDcCal()

MdcCalib


XtMdcCalHistMgr


T0MdcCalHistMgr


WrMdcCalHistMgr


QtMdcCalHistMgr

+updateCalConst()

XtMdcCalConstMgr

+updateCalConst()

T0MdcCalConstMgr

+updateCalConst()

WrMdcCalConstMgr

+updateCalConst()

QtMdcCalConstMgr

+getMdcGeo()

MdcCalibGeo


3. The flow of the program (MdcCalibAlg)

残差分布ΔT0 分布


4. Some results tested by MC data

Results after T0 calibration

丝位偏移量分布

丝位

修正

量(m

m)

Results after survey calibration

每根丝的位置修正结果

Root 格式的直方图文件 (Wire.root)

4. Some results tested by MC data Status of Database and Calibration Project In BES-3 Offline Software System

twcobs

rawMdcCalibFunSvc

TimeToDistFunDistToTimeFun

…

Mdc Calibration Constants

TCDS

Reconstruction

Simulation

Others

MdcCalibFunSvc ：完成漂移室刻度常数到相关物理量的转换过程，既方便各模块调用，也有利于刻度人员的更新和维护。

Calibration

5.Mdc Calibration Function Service


+i ni t i al i se()+execute()+fi nal i se()+BookHi sts()+Fi l l Hi sts()+Anal yseHi sts()+Wri teHi sts()+getChargeOff Corr()+ReadParameters()+Wri teParameters()

DedxCal i b

Algori thm

DedxCal i bLayerGain DedxCal i bDri ftDi st DedxCal i bSaturati on DedxCal i bZposDedxCal i bWi reGain DedxCal i bRunByRun

DedxCal i bParameters<<uses>>

dE/dx Calibration Software Flow



(For the detail, please see the report given by Dayong Wang in this meeting )

The resolution after calibration

TOF Calibration Software Flow

Tof Calibration Algorithm

calibration constants

Tof ReconstructionAlgorithm

Calibration frameworkconverter

Initialize()

execute()

finalize()

TimeCalib()

SpeedCalib()

AttenCalib()

Calibration data（ Bhabha events ）

Calibration constant

Data base

Calibration data（ Bhabha events ）


Time after calibration

dt vs zHit Time resolution


(For the detail, please see the report given by Linli Jiang in this meeting )

Energy Calibration of BESIII EMCEnergy Calibration of BESIII EMC

‘Digi’-calibrationBhabha calibration

0 calibration

Radiative Bhabha calibration

‘Cluster’-calibration


•The R&D of calibration method / finished

•The Algorithms design / working on

Gamma-GammaCalibration

gi

Intermediate Data (matrix, vector)

Bhabha calibration const.

Bhabha calibration flow chart



Muc Calibration Software

•The alignment of Muc / finished

•The R&D of calibration method / working on

•The Algorithms design / working on


TOF Calibration Software Flow

• The database and calibration software was made a big progress in the last year.

• Calibration framework were released at the end of 2005

• Sub-detector algorithm softwares are carrying out smoothly:

MDC, dE/dx and TOF released soon

EMC and MUC worked on • Auto-job-submit-script: a very simple one--fini

shed


Summary

• In this year, we will have much works on the aboves (Algorithms modification, check with MC data … ) and the other Algorithms ( monitor programs, MDC D/H check …) should be considered soon.

• So we hope that more persons would join us!

---- Welcome!


Summary

Thank you all !

Documents

Status of Database and Calibration Project In BES-3 Offline Software System Status of Database and Calibration Project In BES-3 Offline Software System