?Learning MCNP for Research Reactor Analysis

[ISAAC BAIDOO]

I just started learning MCNP for research reactor analysis. Can anybody advise where and how I could easily get material to read and practice

 

[Ibrahim Hany]

For an easy and quick start: Start learning from the Primer.

For a real study with the details, head to the 3 volumes of the Manual. (Start with Vol 2)

Check this: https://laws.lanl.gov/vhosts/mcnp.lanl.gov/mcnp5.shtml

 

[ISAAC BAIDOO]

For an easy and quick start: Start learning from the Primer.

For a real study with the details, head to the 3 volumes of the Manual. (Start with Vol 2)

For an easy and quick start: Start learning from the Primer.

For a real study with the details, head to the 3 volumes of the Manual. (Start with Vol 2)

Check this: https://laws.lanl.gov/vhosts/mcnp.lanl.gov/mcnp5.shtml

Check this: https://laws.lanl.gov/vhosts/mcnp.lanl.gov/mcnp5.sht
thanks a lot
I have just started and it getting interesting but I tried to run some basic example but i could not reference/direct the MCNP to the inp. file.
for example, how do I start when the mcnp command prompt shows: c:\MCNP>_

 

[Ibrahim Hany]

You can install the VisEd, it is a good visualizing tool and also you may run on it.

Or you can start a batch file ( in the folder of the input file ) with the command:

MCNP5 (or whatever the version you are using) I=name of the input file with extension O=name of the output file with extension

 

[ISAAC BAIDOO]

Dear Sir,
Thank you so much for your eagerness to help.
kindly explain to me the following:

1. Can you tell me what LCS: error in MCNPX

I got the LCS error prompt from running the input file below:
example 4-3, repeated structure, two cylinders
C cell cards
1 1 9.90605e-2 -1 -4 5 u=3 imp:n=1 $ solution
2 0 -1 4 u=3 imp:n=1 $ void region
3 2 -2.7 1:-5 u=3 imp:n=1 $Al container
4 0 -2 -3 6 fill=3 imp:n=1
5 like 4 but trcl (17 0 0) imp:n=1
6 3 -1.0 10 -11 8 -9 7 -3 #4 #5 imp:n=1
7 0 -10:11:-8:9:-7:3 imp:n=0
C surface cards
1 cz 6.35 $ solution radius
2 cz 6.50 $
3 pz 80.0 $ top of container
4 pz 70.2 $ top of solution
5 pz 0.0
6 pz -0.15
7 pz -20.15 $ bottom of tank
c sides of tank
8 px -16.5
9 px 43.5
10 py -26.5
11 py 26.5
c data cards
c materials cards
m1 1001.62c 6.2210e-2 8016.62c 3.3621e-2
9019.62c 2.5161e-2 92235.66c 1.1760e-2
92238.66c 8.2051e-5
mt1 lwtr.60t
m2 13027.62c 1.0
m3 1001.62c 2 8016.62c 1
mt3 lwtr.60t
c control cards
kcode 5000 1.0 50 250
ksrc 0 0 35 17 0 35
I was trying this example from the mcnp primer, but whiles running, it stopped at the 192nd cycle and indicated “LCS error”

1. I would want to know how I can execute basic plot command.

The primer indicates I could execute plot command by “mcnp inp=filename ip” or mcnp ip inp=filename. I expect to see the “The default plot is a PX slice centered at (0, 0, 0) with an extent of -100 cm to 100 cm on the Y-axis and -100 cm to 100 cm on the Z-axis” as indicated in the primer. Instead, the is the error comment I get, “bad trouble in mcnpx in routine unique cannpt create outp”
In fact, the main problem is how to use the command to display the plot for now before I begin to think about how to make in unique.
Best Regards
Isaac Kwasi Baidoo

 

[asih rahmat]

can i ask you sir??

 

[asih rahmat]

Dear Sir,

Sorry sir, i found problem in solving detector flux using tally F5. For tally F5 there is R0 for point and ring detector. I still confuse what’s meaning of R0 ? can you help me to give me some example for make me easy to undestand it?thank you sir,

I hope you help me to solving the problem