Exjobbsförslag från företag

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Förslaget inkom 2006-01-18

A detection system for the highest energy subatomic particles in the universe

A network of subatomic particle detectors is being established in the Stockholm region. The purpose of the network is to intercept the giant shower of particles produced when a high energy cosmic ray slams into the earth's atmosphere. GPS satellite technology is used to time synchronise signals from the widely separated detector nodes and the internet is used to transfer data to a central server. A two-node demonstrator system has been established at AlbaNova Universitetscentrum and the network is about (January 2005) to be significantly expanded, using gynasium schools in the Stockholm region to host detector nodes.

A more complete description of the project can be found on the project website (http://www.particle.kth.se/SEASA).

Three diploma works are currently available:

(1) Data analysis

A diploma worker is sought to analyse data from the two-node demonstrator system. The data collected will be initially used to evaluate the performance of the detector system and then used to study properties of the cosmic ray air showers. Data analysis tools will be developed to take advantage of data collected in the future with more nodes. This diploma work is well suited to physics students with a particular interest in particle physics and/or astrophysics. Previous knowledge of a data analysis framework like Matlab or similar would be advantageous but is not essential.

(2) Programming
- Web clients in Java
- Embeddded Linux processors in C
- Server software using a MySQL database

The data acquistion system at each particle detector station is built around a programmable logic array and a single chip Linux computer. TCP/IP protocols are used to transfer data from each station to a central server built around a MySQL database. Web-based clients can access the database to allow the detector stations to be configured and the data output monitored and visualised. A first generation system has been established and tested. The aim of this diploma work would be to develop the existing software adding new features and functionality. Previous experience of Java and/or C (and preferable Linux)is required. This diploma work is well suited to physics students with an interest in programming as well as computing students.

(3) Particle detector development / electronics

The particle detectors are based around plastic scintillator read out by phtomultiplier tubes. Each detector has an area of approximately 0.5 square metres. A diploma worker is needed to build and evaluate new detector designs. This work will be very 'hands-on'. The detector station electronics is a combination of commercial electronics and in-house designs. A diploma work is also possible to further develop the electronics with a view to final installation in local schools. Some previous experience of digital electronics would be considered an advantage but is not mandatory.


Informationen om uppsatsförslag är hämtad från Nationella Exjobb-poolen.