What is a unit of time listed in MCNP6 PTRAC output file?

In summary, the conversation discusses the analysis of a PTRAC output file from MCNP6 and the difficulty in finding the unit of time listed in the file. It is suggested that the natural unit of time in MCNP is the shake, which is equivalent to 10 nanoseconds. This unit is commonly used in nuclear events and is historically significant in chain reactions. It is proposed that this may be the unit for the parameter in question.
  • #1
jj8bmk
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TL;DR Summary
Time unit in MCNP6 PTRAC
Hi everyone,

I've been trying to analyze PTRAC output file from MCNP6

here we can see the location , cell, particle, time, and so on...

My question is, I have trouble finding the unit of time listed in PTRAC, (ex, 0.30113E-02), which is hard to find in MCNP manual

My intuition is that the time unit is in milisecond, or microsecond

Does anyone know the answer of this simple question?
 
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  • #2
The natural unit of time in MCNP is the shake. 1 shake is 10ns. It's a convenient scale for nuclear events and it's the right order for one generation in a chain reaction so there is a lot of history attached to it. Could that be the right for the parameter you are looking at?
 

FAQ: What is a unit of time listed in MCNP6 PTRAC output file?

What is a unit of time listed in MCNP6 PTRAC output file?

The unit of time in the MCNP6 PTRAC output file is typically in shakes. One shake is equal to 10^-8 seconds.

Can the time unit in MCNP6 PTRAC output be changed?

No, the time unit in the MCNP6 PTRAC output file is fixed and cannot be changed. It is always in shakes (10^-8 seconds).

Why does MCNP6 use shakes as the unit of time in PTRAC output?

MCNP6 uses shakes as the unit of time because it is a standard unit in nuclear physics, allowing for precise measurement of very short time intervals typical in nuclear reactions and particle transport simulations.

How do I convert time from shakes to seconds in MCNP6 PTRAC output?

To convert time from shakes to seconds, you simply multiply the time value by 10^-8. For example, 1000 shakes would be 1000 x 10^-8 = 10^-5 seconds.

What other units are commonly used in MCNP6 simulations besides shakes?

Besides shakes, other common units used in MCNP6 simulations include centimeters for length, electron volts (eV) for energy, and grams per cubic centimeter (g/cm³) for density.

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