Radiation Dosage and Energy Absorbed by 69 kg Patient

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Homework Help Overview

The discussion revolves around a problem related to radiation dosage and energy absorption in a patient weighing 69 kg, specifically focusing on the effects of alpha particles with a given RBE and dose in mrad.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore definitions of key terms such as rad and RBE, questioning their meanings and implications for the problem. There is an emphasis on understanding how RBE is applied in the context of the dosage calculation.

Discussion Status

The discussion is currently focused on clarifying terminology and concepts related to the problem. Some participants have provided insights into the definitions of rad and RBE, while others are seeking further understanding of how these terms interact within the problem context.

Contextual Notes

Participants are addressing foundational concepts that may be necessary to approach the problem effectively. There is an indication that understanding these terms is crucial for progressing in the discussion.

keweezz
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Alpha particles with an RBE of 13 deliver a 32 mrad whole-body radiation does to a 69 kg patient.

A) What dosage, in rem, does the patient receive?

B) How much energy is absorbed by the patient?

Can anyone help me with this problem? Stuck from the beginning..
 
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Hi keweezz,

A good place to start would be to define the terms. What is a rad? What does RBE mean, and how is it used?
 
Radiobiological Effectiveness for RBE i believe..and mrad is a unit like a millimeter.
 
keweezz said:
Radiobiological Effectiveness for RBE i believe..and mrad is a unit like a millimeter.

Yes, a mrad is a milli-rad. But my questions was, what is a rad? Answering that will allow you to get half the problem done.

I think RBE stands for relative biological effectiveness; but those are just the words. How is the RBE factor used?
 
hm.. how is it used..? any thoughts?
 

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