Can you only get compound corrections needed for SRIM experimentally?

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Discussion Overview

The discussion centers around the need for compound corrections in the context of SRIM (Stopping and Range of Ions in Matter) and whether these corrections can only be obtained experimentally. Participants explore the implications of chemical bonding on material properties and the potential variations in measurements.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants propose that chemical bonds can be ignored, treating the material as a sum of its constituent elements, specifically carbon and hydrogen.
  • Others argue that the compound correction arises from the presence of chemical bonds, with some sources indicating a variation of 2-20% based on the molecule.
  • A participant suggests looking for data on toluene or longer-chain hydrocarbons, expressing skepticism about expecting large differences in results.

Areas of Agreement / Disagreement

Participants express differing views on the significance of chemical bonds in determining compound corrections, indicating that multiple competing perspectives remain without a clear consensus.

Contextual Notes

The discussion may be limited by assumptions regarding the treatment of chemical bonds and the specific molecules considered, as well as the dependence on the definitions of compound corrections in the context of SRIM.

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I need a to get the peak energy deposited by muons in polyvinyl toluene [CH2CH(C6H4CH3)]n for a scale calibration. I think I can do this via the stopping power but cannot find bragg/compound correction online. Anyone know of a way to determine it from the chemical fomula?
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To a good approximation, you can ignore chemical bonds and just treat it like the sum of carbon and hydrogen in the material.
 
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mfb said:
To a good approximation, you can ignore chemical bonds and just treat it like the sum of carbon and hydrogen in the material.
Thats what it does by default, the compound correction is due to the bonds. I found sources saying it causes a variation of 2-20% depending on the molecule.
 
You can see if you find numbers for toluene or some hydrocarbons with a longer chain. I don't expect large differences however.
 
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Thanks :)
 

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