Numerical Simulation of the Electric Field and the

Study of Electron Collection Efficiency in a

Xe TPC Julia C. Ziac

Geometry

height

separation distance

radius

3D2D

Study 1: Electrostatics

Study 2: Particle Tracing

Collection Efficiency

0 .0 0 .2 0 .4 0 .6 0 .8 1 .0D is tancecm

200

400

600

800

1000

Number o f E lectron s

0 .5 0 .6 0 .7 0 .8 0 .9 1 .0D is tancecm 0

200

400

600

800

1000

Number o f E lect rons

0.0 0 .2 0 .4 0 .6 0 .8 1 .0Fraction of Rad iu s Away from Cen ter0

200

400

600

800

1000

Number o f E lectron s at Top of TP C

0.25R

0.35R0.5R

0.55R

0.25R

width = 3/100 * R release width = 1/100 * R

Future