Conveners
Applications of nuclear and particle physics technology
- Patricia Gonçalves (LIP)
- Jorge Sampaio (LIP - Lab. Instrumentação e Física Experimental de Partículas e FCUL - Faculdade de Ciências da Universidade de Lisboa)
I will report first performance results for a prototype PET system designed for proton rage verification in proton therapy. This prototype will later be evaluated with phantoms and animals at the proton therapy center of MD Anderson Cancer Centre in Houston, Texas, USA.
The PET system consists of two detector module assemblies in the shape of angular sections of a cylinder with an inner...
The Jagiellonian Positron Emission Tomograph (J-PET) is a multipurpose detector for 1) tests of discrete symmetries, 2) medical imaging by combinig metabolic information collected by standard PET with structural information obtained from Positronium lifetime in a concept of morphometric image and 3) test of quantum entanglement of photons originating from the decay of positronium atoms....
Proton therapy (PT) is growing worldwide due to its ability to provide a very conformational dose to the tumor being irradiated. However, diverse variables may compromise such conformationality and lead to undesirable situations that are suspected of being correlated with tumor recurrence. Several approaches have been suggested for in vivo monitoring of the PT dose delivery and proton beam...
Carbon (C‐) ion beams undergo nuclear interactions with tissue, producing secondary nuclear fragments. Thus, at the depth where the tumor and critical structures are located, C‐ion beams are composed of a mixture of different particles with different linear energy transfer (LET) values. Indeed, at the middle of a typical spread-out Bragg peak of a C-ion beam, only about 35% of the particles...
Radiobiology is a multidisciplinary area where the effects of radiation in cells, tissues and organs are studied. To understand the biological effects of radiation it is important to be able to have a read of the energy deposition at a micro and nano scales.
Having this in mind, this project is being developed with the aim of building a detector that offers radiobiology researchers the...
Ion beams are used in a wide range of applications in research and industry including the deliberate modification of functional materials and the characterisation of materials using ion beam analysis techniques. The understanding of ion-solid interactions furthermore allows evaluating the detrimental effects of radiation on materials and devices in different radiation environments. GaN and...
Charged Particles Therapy (CPT) is a technique based on the use of charged particle beams for the treatment of deep-seated tumors. The advantages of CPT are due to the energy release occurring mainly at the end of the particles path, in the Bragg peak region, and to the enhanced biological effectiveness of hadron beams, measured in terms of the Relative Biological Effectiveness (RBE). Recent...
In Particle Therapy (PT), nuclear interactions of the beam with the patient’s body causes fragmentation of both the projectile and target nuclei. In treatments with protons, target fragmentation generates short range secondary particles along the beam path, that may deposit a non-negligible dose especially in the entry channel. On the other hand, in treatments with heavy ions, such as C or...
