SUTSdata taking and processing

K.Morishima

Introduction to Morishima

・ Refresh・ Development of Plate Changer・ Development of Dry lens scanning ・ Development of SUTS system

Prototype of Plate Changer 1

Prototype of Plate Changer 2

Plate Changer 01

Plate Changer 02

Dry lens scanning system 1

Dry lens scanning system 2

SUTS 04 began to run from 1/17

SUTS 04Efficiency

Status

Optical

Magnitude

Speed

(100cm2 area scan)

(cm2/hour)

Data taking from the dateafter moves to TONO

SUTS01 50 20 2008-Oct-31

SUTS02 35 50 2008-Aug-06

SUTS03 35 50 2008-Jul-08

SUTS04 35 50 2009-Jan-17

SUTS05 35 50 2008-Jul-17

All stages are constructed and tuned by Nakano and Morishima

Performance

Optical

Magnitude

Speed

(100cm2 area scan)

(cm2/hour)

MicroTrack Angle resolution

mrad (Tanθ<0.1)

X Y

SUTS01 50 20 14+-1 8+-1

SUTS02 35 50 13+-1 10+-1

SUTS03 35 50 13+-1 10+-1

SUTS04 35 50 13+-1 10+-1

SUTS05 35 50 12+-1 11+-1All stages are constructed and tuned by Nakano and Morishima

Running

90 % of SUTS machine time used for CS scanning10 % of ECC volume scan using 1 SUTS (normally SUTS02 or 03)

4 SUTS (01/02/03/05) 9.8 CS/day → 68.6 CS/week5 SUTS 12.6 CS/day → 88.2 CS/week

SUTS Scanning Shift

SUTS Running Speed

CS Data Taking （ first scanning）

■ SUTS01■ SUTS02■ SUTS03■ SUTS05

Flat area : Re-scanning

Stream of scanning and processing : CS

change plates

MakingMicroTracks

MakingBaseTracks

ComptonAlignment

Onlinescanningmonitor

Optimize the parameter of scanning and the flow of the processing

Check qualities of all eventsand Judge whether to do manual-check or re-scanning

3/4 connection

4/4 connection

selection

Online process : CS

Morishima

Manual checklist

Check monitor

When the trouble occures, call to Morishima

→ 　 automation

Onlineprocessing

monitor

shifter

CS

Improvement of scanning qualities

Side view of the surface recognized by suts

GOOD BAD

Bad Ratio : ~ 10 %

Now : ~ 2 %

Training and carefully setting

1. Condition of scanning parameter is changed (set the lowest threshold to secure base track efficiency more than 93% (now, only CS, not yet ECC) )

2 ． Plate setting

Result in these effects will be presented by next talker T.Fukuda

100micron

Air enters under film,and it is floating

ECC dataTracking efficiency distribution of some bricks

efficiency

Solution・ Slow speed scanning ・ Two or more recognition boards are used for one SUTS (one present)

Background component is different from CS.Not fog but compton tracks are the main.

Summery

5 SUTS are running　 CS scanning speed ~ 88 CS/week　Improving the qualities by changing the parameter setting and the plate setting.

In near future, CS data quality check will be automated as soon as possible, and built in the shift task.

I make efforts to the improvement of the data taking and processing of ECC for Vertex Confirmation and Decay Search Analysis.