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

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SUMMARY

The unit of time listed in the PTRAC output file from MCNP6 is the "shake," which is defined as 10 nanoseconds (ns). This unit is particularly relevant for nuclear events, as it aligns with the timescales of chain reactions. The discussion clarifies that while there may be confusion regarding milliseconds or microseconds, the established unit in MCNP is indeed the shake, making it essential for accurate interpretation of PTRAC data.

PREREQUISITES
  • Understanding of MCNP6 software and its output files
  • Familiarity with nuclear physics concepts, particularly time scales in nuclear reactions
  • Knowledge of PTRAC (Particle Tracking) functionality within MCNP6
  • Basic grasp of scientific notation and unit conversions
NEXT STEPS
  • Research the significance of the "shake" as a time unit in nuclear physics
  • Explore the MCNP6 manual for detailed explanations of PTRAC output parameters
  • Learn about the implications of time measurement in nuclear chain reactions
  • Investigate other time units used in particle tracking and their applications
USEFUL FOR

Researchers, nuclear physicists, and anyone involved in analyzing MCNP6 simulations and interpreting PTRAC output files will benefit from this discussion.

jj8bmk
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TL;DR
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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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?
 

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