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Murata .Lab 2012 Last Group M eeting. Correlation signal OASys to Zero field. Rikkyo University Murata.lab / RIKEN Master course 2nd Kentaro Watanbe. motivation : What is OASys signal ??. ④. ⑤. ③. half octant . half octant . ⑥. ②.

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Correlation signal oasys to zero field

Murata .Lab 2012

Last Group Meeting

Correlation signalOASys to Zero field

Rikkyo UniversityMurata.lab/ RIKEN

Master course 2nd

KentaroWatanbe


motivation : What is OASys signal ??

half octant

half octant

I investigatethe correlation half octant movement to the most inner OASys camera on each half octant.



South Arm track map March Zero field

Run9 South Arm Conditions

・octant 7 half octant 1 is dead area.

track efficiency movment

octant 7 half 1

South Arm track map May Zero field

octant 7 half 1


Normalized Sagitta distribution March Zerof & May Zerof

Black: March data , Red May data

Southarm sagitta distribution is normalized -2cm to 2cm


South Arm : the movement of Zero field mean & OASys

dead octant

Octant 4-2

dead octant

Octant 7-1

↑ it seems to be healthy tracks

South Arm に関してはdeadoctant (oct 7-1) を除くと、その変位は80日間でOASys、Zero field共に±200μmである。

この中に相関があるかどうかを評価したい。


South Arm : the movement of Zero field mean & OASys

Almost half octant ID is 1

half octant

half octant

Almost half octant ID is 2

しかし、大事な点はOASysとZero fieldの間に相関があるかどうか?



North Arm


North Arm : the movement of Zero field mean & OASys

こりゃ非道!!!

Zero field 合ってる??

これが本当だと大変な事だ

もっかい解析して


North Arm : the movement of Zero field mean & OASys


North Arm : the movement of Zero field mean & OASys

March

st1 march : oct 2-2 dead

st1 march : recovered

May

st3 march : oct 5-1 dead


統計量の変動

the efficiency par half octant is different in the term ??


Normalized Sagitta distribution March Zerof & May Zerof

Black: March data , Red May data

North arm sagitta distribution is normalized -2cm to 2cm


800μmとかズレちゃう連中。0

拡大して見て更にわかる様に中心値はズレています。fittigによるズレでわなく。生データの段階でズレてます。よって、このmeanのズレはBGの揺らぎから来ているのか?tarckのイベントセレクションを行う事で、変化するのであろうか??んー疑わしいが、イベントセレクションしてみます。


ちなみにsouthを見るとこんなにもキレイ!!


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