1. Pspice Simulations - Intro. To Capture/PSpice - Simulation of EST - Simulation of Existing Test Beam

2. Capture and PSpice can create schematics for analog or mixed signal designs, PCB layout PSpice can simulate analog designs PSpice libraries contain over 11,000 parts can download PSpice models directly from manufacturer’s web sites

4. PSpice Simulation Output PSpice can perform DC, AC, transient analyses You can place “probes” at any part of the circuit Output can be written to ASCII file for further analysis

5. Electrostatic Transformer (EST) Fig 8-4, from ATLAS Tech. Design Report (1996)

6. EST- Schematic

7. Fig 19 from NIM paper – May 2001

8. EST Ideas: NOMINAL: 4 identical current pulses I(t) = Io(1-t/  d ) Io = 100 nA  d = 400 ns NON-NOMINAL: Due to potential difference, gaps between plates of capacitors change 1 pulse is longer than the other 3

9. EST – Output Signal

10. HEC Electronics Chain Figure 1 from Kurchaninov, ATLAS-HEC Note 109 (2001)

11. HEC Electronics Chain PSpice model based upon schematic and electronic parameters presented in HEC Note 109 rough circuit design complete Need more info. about Kapton cable spec’s May replace Laplace equations with equivalent circuitry

12. HEC Electronics Chain calibration pulse measured on Strip Line (SL) Left: fig 5 from HEC Note 109 Right: PSpice output