Gamma decay contents what it is whiteboard
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Gamma Decay Contents: What it is Whiteboard PowerPoint PPT Presentation


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g. Gamma Decay Contents: What it is Whiteboard. Gamma Decay:. 239 94 Pu 239 94 Pu + . Nucleus has energy levels Energy of transition emitted as a high energy photon Usually after a beta or alpha decay Many energies possible Stopped by meters of lead Used for food irradiation.

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Gamma Decay Contents: What it is Whiteboard

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Gamma decay contents what it is whiteboard

g

  • Gamma Decay

  • Contents:

    • What it is

      • Whiteboard


Gamma decay contents what it is whiteboard

Gamma Decay:

23994Pu 23994Pu + 

Nucleus has energy levels

Energy of transition emitted as a high energy photon

Usually after a beta or alpha decay

Many energies possible

Stopped by meters of lead

Used for food irradiation

TOC


Gamma decay contents what it is whiteboard

Whiteboards:

Gamma Decay

1 | 2

TOC


Gamma decay contents what it is whiteboard

23994Pu --> 23994Pu + 

239.054238 --> 239.052157

What is the energy of the gamma emitted?

Parent mass = 239.054238 u

Product mass = 239.052157 u

Mass defect = parent - products = 0.002081 u

Energy of radiation = (0.002081u)(931.5 MeV/u) = 1.94 MeV

W

1.94 MeV


Gamma decay contents what it is whiteboard

24596Cm --> 24596Cm + 

???.?????? -->245.065484

What is the excited mass of the parent, if a 3.92 MeV gamma photon is emitted?

Mass of 3.92 MeV = (3.92 MeV)/(931.5 MeV/u)

= 0.004208266 u

Excited parent is more massive than this by that amount

Parent mass = 245.065484 + .004208266 u = 245.069692 u

W

245.069692


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