EM radiation and Nuclear Radiation

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Discussion Overview

The discussion revolves around two questions related to different types of radiation: the detection capabilities of film for various electromagnetic waves and the range of different nuclear radiation types in tissue, assuming equal energy. The scope includes conceptual understanding and technical reasoning regarding radiation types and their interactions with materials.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants suggest that microwaves and radiowaves cannot be detected by film due to their longer wavelengths.
  • Others propose that gamma rays may also not be detectable by film, though there is uncertainty about this claim.
  • There is a suggestion that the particle with the largest mass (alpha particles) would have the shortest range in tissue, while beta particles would have a longer range.
  • One participant questions the assumption of equal energy, stating that energy levels could affect the range of radiation in tissue.
  • A later reply references the Bragg curve and suggests comparing absorption curves of charged and neutral particles to understand their interactions better.

Areas of Agreement / Disagreement

Participants express differing views on the detection of gamma rays by film and the impact of energy on the range of radiation types in tissue. There is no consensus on these points, and the discussion remains unresolved.

Contextual Notes

Some assumptions regarding energy levels and their effects on range are not fully explored, and the discussion does not clarify the definitions of detection capabilities in detail.

madking153
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hi , got 2 question about radiation:

1. Microwaves , radiowaves ,gamma rays and visible light - which one cannot detected by film?

2. Gamma rays , beta rays ,neutrons and alphas - which one has the shortest range in tissue ?( assume equal enegy)

thanks
 
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madking153 said:
hi , got 2 question about radiation:

1. Microwaves , radiowaves ,gamma rays and visible light - which one cannot detected by film?

2. Gamma rays , beta rays ,neutrons and alphas - which one has the shortest range in tissue ?( assume equal enegy)

thanks

1. My guess would be the one with the lowest frequency.

2. I would think the largest (most massive) particle would have the shortest range.
 
1. Microwaves , radiowaves ,gamma rays and visible light - which one cannot detected by film?
The longer wavelengths (microwaves, radio waves) cannot be detected by film.

2. Gamma rays , beta rays ,neutrons and alphas - which one has the shortest range in tissue ?( assume equal enegy)
Charge particles (beta and alpha) have much shorter ranges, with alpha (heavier) shorter than beta. Neutral particles (gamma and neutrons) will penetrate quite deeply.
 
Can u explain why microwaves and radiowave cannot detected my film ? thanks
 
madking153 said:
hi , got 2 question about radiation:

1. Microwaves , radiowaves ,gamma rays and visible light - which one cannot detected by film?
Microwaves and radiowaves can't be detected by photographic film. I'm not sure about gamma rays but I doub't film can detect them.
2. Gamma rays , beta rays ,neutrons and alphas - which one has the shortest range in tissue ?( assume equal enegy)
I'm not sure that we can assume equal energy since the distance is a function of energy. Therefore it may be the case that when one has a lower energy it has a shorter range and when the energy is higher the range changes. Sorry if that doesn't help.

Pete
 
well, it is a question from Raphex - exam from Radiology ...
 
madking153 said:
well, it is a question from Raphex - exam from Radiology ...
So I take it that it doesn't give an answer anywhere (else you wouldn't be asking)?

Are you familiar with that Bragg curve? If so then take a look at it and compare the absorption curve with the absorption curve of neutral particles. It may help.

Pete
 

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