Thor II Brick Model
!
Time-step 0.1e-9
Resolution-time 1e-9
End-time 1.5e-6
Number-prints 5
Execute-cycles all
Grids no
Echo-setup no
Max-points 4001
!
!Start circuit definition
!
! We start with a capacitor and switch with the parameters proposed for the 
! Thor II brick with the 80 nF version of the 
! GA 35426M Capacitor 40 nF, 15 nH, 0.13  ESR (est. from GA catalog)
! Then there is a 200 ft (300 ns) TL with an impedance close to the impedance of
! the capacitor and the switch and the header.
! The switch impedance at peak current was 0.37  from PhysRevSTAB.12.050401.2009
! We will include the inductance of the WL header.
! Then there is ~ 3 feet of water transmission line.
! Then there is the constant gap plastic feed and the load.
! Each component will be separate.
! SNL estimates that the total internal inductance is 2.7 nH. 1.7 Rexolite, 1.0 load
!
!
BRANCH
!
! Capacitor capacitance and charge voltage
!
RCG 1e+12 40e-9
Initial VC1 200e3
UFO VC1
$V_cap
! Cap inductance, case inductance, and ESR
Rlseries 0.33 50e-9
!
! Switch resistance and switch inductance
!
Rlseries 0.37 50e-9
!
! Brick/Cable Header inductance
!
Rlseries 0.00 50e-9
!
! TLine 4, 10.2  cables in parallel
!
TRLine LIN 300e-9 2.55 2.55
UFO VIN
$V_Cable_in
UFO VOUT
$V_Cable_out
!
! Water Section Header (outside water TL) Complete guess
! Scaled by 200X, assuming 0.5 nH base total header inductance
! paralleled for both levels (1 nH per level) low estimate
!
Rlseries 0 100.0e-9
!
! Water Transmission line, 5 segments X200 Z
! All WL sections increase the impedance by ~ 27% per section
!
TRline LIN 12.5e-9 1.012 1.354
UFO VIN
$V_WL_in
TRline LIN 9.63e-9 1.354 1.830
TRline LIN 7.53e-9 1.830 2.524
TRline LIN 5.42e-9 2.524 3.470
TRline LIN 3.91e-9 3.470 4.759
UFO VOUT
$V_WL_out
!
! At this point I do not have a good model of the convolute
!
! Rexolite Section X200
RLseries 0.00   340e-9
!
! Assume load resistance is ~ 1 m
! Load to ground X200
!
RLseries 0.00   200e-9
UFO IR2
$I_load
Rcground 0.2 0.0
!
! End circuit