Electron-Tracking Compton Camera (ETCC)1()(~3str)

TPC(time projection chamber) 3 (~3str)(0.1-a few MeV)In use of electron trackno use of electron track

ETCC~ 150km100keV1MeVFlux(2006) 10cm

1 cmSMILE Project Sub-MeV gamma-ray Imaging Loaded-on-balloon ExperimentSMILE - I Project I-131

PMT45.85.815mm38848.548.5mm25454mm2 100abcdx = (a + b - c - d) / (a + b + c + d)y = (a + c - b -d) / (a + b + c + d)E = a + b + c + d1/3

A13

C23

BD20

M10

G15

J17

H20

F31

L31

E16

X

APIC

HNEWAGETPC

CTPC?

F

E

X3He@JPARC

BDX

MUVUV

GPMT

JISS

L

NEWAGE100m3TPC Physics Letters B 686(2010)11 Physics Letters B 654 (2007) 58Physics Letters B 578 (2004) 241

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