Motivation letter to University

Hello all!
I am applying for a PhD position to University and I have to write a motivation letter. Could anyone help? I have written some text. but I don't know if it is good enough.
Thanks!

Motivation letter:

Dear Sir or Madam,

I am writing to apply for PhD program “…” at the … Institute. My career ambition is to become a PhD in plasma physics.

I started my academic career with the study of "Plasma confinement" and “Plasma dynamics”, as my majors at … University. Since field of plasma physics, concerned to fusion devices and processes, taking place there, was the most interesting for me, the topics of my bachelor’s and master’s theses were connected with a modelling of the neutron radiation effect on the first mirrors in the fusion reactor ITER. While doing my Master’s degree I became acquainted with the basics of fusion devices.

By donating my time as a group leader, I learned to understand how emotions, especially enthusiasm, could motivate others. As the team leader, my task was to help in the organization of educational process in my group, representation of its interests and individual work with students regarding the curriculum. Such type of activity has taught me to work in a team and make decisions not only for myself. In 2012 I graduated with a Master of Science degree among the top five percent of the students.
At the moment, the area of my research is a diagnostic of the plasma in a stellarator- heliotron … using Langmuir probes. Taking into account that the theme of the master’s thesis and current investigations are very different, it took me only three months to learn the basics of this field of plasma physics. The main objective of my research is to measure the main peripheral plasma parameters, investigate SOL plasma turbulences and the effect of the RF plasma creating and heating on the plasma behavior.
Despite the fact that this is an experimental work, I use the theoretical knowledge in the field of wave propagation in plasma for analyzing the results and writing articles. For data processing, I have developed a program code with a graphical interface in the Matlab development environment, which lead to a twenty-fold decrease of the processing time. During the year, this code has been improved with the new data processing methods and has been made almost fully automatic. Knowledge of the Matlab was useful for me not only at work in my laboratory. In our institution was a task to develop a data acquisition system, the solution of which was proposed and implemented by me. Work in the science involves not only using of the available resources, but also searching for the alternative. Thus, in the laboratory, where I
work, I have initiated improving of the old measurement system and developing of the new one.
During the work at the Institute, I was the only person who participated three times in the “some event” from myCountry, where under time pressure and strong workload, relevant results were obtained. In addition, I have presented several papers at conferences, including international ones.
In the future, my purpose is to continue working in the field of plasma physics, expanding my knowledge of the plasma confinement, theory of particles transport in the edge plasma and plasma diagnostics.
Based on the above, I would like to describe myself as a human who has an ability of self-learning and finding solutions in critical situations, working in a group and organizing its activities. Having sufficient knowledge in the field of plasma physics, I am confident that I will be suitable for your research team.
Thank you for considering my application and I look forward to hearing from you.
Yours faithfully, Andrii FamilyName