LHC???ATLAS??? SCT????????? ????????

1
LHC???ATLAS???SCT?????????????????
??? ???A ?????B ???C ?? ?? ???????????????????A
,????????B,????C, ????C,???C,?????C,???? B
,?????A,???C,????A

• LHC?ATLAS SCT???
• superLHC
• superLHC???????????
• N-on-P????
• ?????
• ?????????

2
LHC??

• ?????CERN????, 2007???7 TeV?????????
• (????????1034 /cm2s??????25nsec)
• ATLAS????????????Higgs??????????????

ATLAS???
3
ATLAS???????????

• ?????
• ????????
• ??????????
• ?????????
• (???????????????????)

45 m
SCT
Liq Ar
??? ?7000??
22 m
TRT

• ???????(2T????)
• PIXEL (3?)
• SCTSemi Conductor Tracker
• (4???Si microstrip?8?)
• TRTTransition Radiation Tracker
• (36??straw tubes 4mmf)

Pixel
2.5m
7m
4
SCT?????????
6cm 768ch
SCT???
????????
???????(6x6cm)???2????40mrad????????????.
???????????(?2112?)?980?(?????)???????????.???????
??????????4?????CERN????????????
5
???????????(B6)
6
Super LHC

• low ß(???????)???(700fb-1)?20142016??
• ???????????10???(1035/cm2/s)????
• (?????????) ?superLHC

7
Super LHC ???????????

• ???????????????TRT ? Si microstrip ???
• ???????????(?????)????ch???????

• ?????SCT??????

• ??????(12cm?3cm?????)???????????
• ??????????(31014 ? 1015 /cm2 )

N-on-P ??????? ????????

• ??????SCT??????

• ??????????????
• ???R??cm?????
• ???SCT?????????????

G4???????????
8
N-on-P ?????????
?????N-on-P???? (SDC???10???????)
P-on-N (???SCT)
P
????????n?p????
P-N??????????????????????????????? ???????????(?S
CTlt500V)
P-N????????????????????????????????? ?S/N????????
9
??????
1.11014/cm2
???????C-V??
??????????????????
???
1.11014/cm2
????(fC)
??????
?????????????
P-on-N

• ??????(C-V??)?????????
• ??????????????????
• P-on-N??15?????????????????????(??)

N-on-N ? N-on-P
P-on-N
BiasVoltageV
10
???????????
???
???
Vb100V
Si3N4
??????????????????????????????1um????????? ?????
????????? ?????????????? ????????
n
n
p-stop
Vb300V
????(fC)
????????p-stop??????????????????? ???????????(Vb
100V)?????????
????????(um)
11
?????????????????????

• GEANT4.6.0??????????
• x6cm,y100cm,z0.03cm???????????
• ???x???2T??????
• R?sLHC?????????????
• ??3?PIXEL(????????50µm)
• ??34?SCT (????????80µm)
• ??13?SCT
• (????????80?120???µm)
• 5,10,100GeV?µ-?(0,0,1)??????
• ??????????????????????
• ??????????????????
• ?????????????????????

12
??????

• ???????????mu- 5GeV 100event
• ????????????????
• ????????????????(???)
• ????????gt50KeV?????
• ?????????????????
• z????????
• ??????????????????????
• ?????????????????
• 1?????????????????
• ?????superLHC????????????

E
1????????????????
Y
Z
Z
13
?????????

• ????????????
• ????N-on-P????????????????????????????????????
• N-on-P?????????????1015/cm2????????????
• MCz??????????????????????????????MCz?????????
• ??????????????????
• GEANT4?????????????sLHC??????????????????(SCT?????
  ??R?)?????? GEANT4????????geometry????????????????
  ?