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I joined to my lovely group Medical&nbsp;
Engineering in the Department of&nbsp;&nbsp;

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Medical Physics in Radiation Oncology at&nbsp;
German Cancer Research Center in 2017.&nbsp;&nbsp;

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Back then, I began with my practical semester.&nbsp;
Then, I did my Bachelor's Thesis in the same&nbsp;&nbsp;

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group. I got a Bachelor's Degree in Biomedical&nbsp;
Engineering. Now, I'm doing my Master's degree&nbsp;&nbsp;

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in Medical Physics and I've just started with&nbsp;
my Master's Thesis project in the same group.&nbsp;&nbsp;

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Medical devices have to be tested and quality&nbsp;
assured. So in our group, we design and build&nbsp;&nbsp;

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the testing sets and phantom which allow routinely&nbsp;
controlling the devices and machines. Furthermore,&nbsp;&nbsp;

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in our group we develop also reproducible&nbsp;
anthropomorphic phantom for diagnostic&nbsp;&nbsp;

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and therapeutic purposes by using 3D printing&nbsp;
techniques which means that we model the shape and&nbsp;&nbsp;

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the size of organs based on real patient imaging&nbsp;
data and of course as accurate as possible.

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My work comprises basically six steps.&nbsp;
Firstly defining what's going to be modeled,&nbsp;&nbsp;

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what will be measured at which machine.&nbsp;
The next step is to model the organ itself&nbsp;&nbsp;

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and casting mold for the organs&nbsp;
and the tumors inside them.

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All this will be done by different CAT software.&nbsp;
Follow up choosing suitable printing techniques&nbsp;&nbsp;

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based on geometry of the phantom and model and&nbsp;
the supporting structure for given hollow organs.&nbsp;&nbsp;

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Our printers are able to print stiff, flexible&nbsp;
and also colorful. After printing and removing the&nbsp;&nbsp;

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supporting scuffle, we can fabricate elastic&nbsp;
model made up of silicon with the aid of our&nbsp;&nbsp;

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2D printed casting mold. The further step&nbsp;
is in chemistry lab where the silicone model&nbsp;&nbsp;

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and also a different kind of gels produced be it&nbsp;
from radiation sensitive gels or that gels that&nbsp;&nbsp;

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provide us with the contrast and also solutions&nbsp;
of varying concentration may also be used.&nbsp;&nbsp;

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During step 5 our organs and tumors are filled&nbsp;
with gels and solutions all with the purpose&nbsp;&nbsp;

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of delivering comparable contrast as it's&nbsp;
done with the real patient diagnostic image.&nbsp;&nbsp;

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Last but not least, the model will be measured&nbsp;
and of course the result will be analyzed.&nbsp;&nbsp;

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Thanks to my group and our research&nbsp;
center I feel free to be creative.

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The most important thing in&nbsp;
research is to be updated&nbsp;&nbsp;

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which requires time and concentration. Another&nbsp;
challenge is the research itself because you&nbsp;&nbsp;

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usually go for a thing that do not exist yet.&nbsp;
So you should come up with plan, stick on it,&nbsp;&nbsp;

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you need to believe in yourself&nbsp;
and of course not give up easily.