Reduced Field Error

[Zihan Lin]

Dear all,

I hope everyone is doing well! 

I am encountering the following error in ZDPlasKin when I run different reduced field values that are kept constant throughout the simulation. 

 Warning: internal T(=R1) and H(=R2) are such that
 in the machine, T + H = T on the next step.
 (H = step size). The solver will continue anyway.
In the above message, R1 =   0.6463329363964D-09   R2 =   0.4598193127754D-25
 The above warning has been issued I1 times.
 It will not be issued again for this problem.
In the above message, I1 =         10
 At current T(=R1), MXSTEP(=I1) steps
 taken on this call before reaching TOUT.
In the above message, I1 =       5000
In the above message, R1 =   0.1387946728885D-05
Tgas   = 3.0000D+02
    EN = 8.0000D+01
    Te = 1.7975D+04
ZDPlasKin ERROR: DVODE solver issued an error (subroutine ZDPlasKin_timestep)
PRESS ENTER TO EXIT ...

The error occurs when I use E/N = 80 Td but works perfectly fine for 70Td or 110 Td. I also already tried increasing ATOL and RTOL. If you have any suggestions, please let me know! 

Thanks!

Best,

Zihan Lin