Question
In: Physics
a) A tumour located at a depth of 10 cm is treated using a non-isocentic technique...
a) A tumour located at a depth of 10 cm is treated using a non-isocentic technique with a Co-60 machine, to a dose of 1.8 Gy, with a single 5 cm x 5 cm beam. Compute the maximum dose received anywhere in the patient's anatomy. Refer to the attached table for PDD data. (5 pts)
b) At what depth does the maximum dose occur? Explain. (5 pts)
c) Compute the dose at a depth of 5 cm along the beam axis. (5 pts)
d) Would this be a good treatment strategy? Explain.
Percent Depth dose (in %) table for Co-60 beam for different depths and field sizes.
| Field Size (cm^2) | 5 x 5 | 10 x 10 | 20 x 20 | |
| Depth (cm) | ||||
| 0.5 | 100 | 100 | 100 | |
| 5.0 | 76.7 | 80.4 | 83.0 | |
| 10.0 | 53.3 | 58.7 | 63.3 |
Solutions
genius_generous answered 1 year agoRelated Solutions
a tumour located at a depth of 10 cm is treated using a non-isocentic technique with...
a tumour located at a depth of 10 cm is treated using a
non-isocentic technique with a Co-60 machine, to a dose of 1.8 Gy,
with a single 5cm x 5cm beam. Compute the maximum dose received
anywhere in the patients anatomy.
b)At what depth does the maximum occur? Explain
c) compute the dose at a depth of 5 cm along the beam axis
d) Would this be a good strategy? Explain
percent dose (in %) table for Co-60 beam...
A tumour located at a depth of 10 cm is treated using a non-isocentic technique with...
A tumour located at a depth of 10 cm is treated using a
non-isocentic technique with a Co-60 machine, to a dose of 1.8 Gy,
with a single 5 cm x 5 cm beam. Compute the maximum dose received
anywhere in the patient's anatomy. Refer to the attached table for
PDD data.
a) At what depth does the maximum dose occur?
b) Compute the dose at a depth of 5 cm along the beam axis
a) A tumour located at a depth of 10 cm is treated using a non-isocentic technique...
a) A tumour located at a depth of 10 cm is treated using a
non-isocentic technique with a Co-60 machine, to a dose of 1.8 Gy,
with a single 5 cm x 5 cm beam. Compute the maximum dose received
anywhere in the patient's anatomy. Refer to the attached table for
PDD data. (5 pts) b) At what depth does the maximum dose occur?
Explain. (5 pts) b) Compute the dose at a depth of 5 cm along the
beam...
A tumour located at a depth of 10cm is treated using a non-isocentric technique with a...
A tumour located at a depth of 10cm is treated using a
non-isocentric technique with a Co-60 machine, to a dose of 1.8 Gy,
with a single 5cmx5cm beam.
a) Compute the maximum dose received anywhere in the patients
anatomy. Refer to the attached table for PDD data.
B) at what depth does the maximum dose occur? Explain
c) computer the dose at a depth of 5 cm along the beam axis.
d)would this be a good treatment strategy
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