Algorithms and programs being developed by scientists from the Moscow Physics Engineering Institute and the Keldysh Institute of Applied Mathematics RAS with the support of the International Science and Technology Centre will help oncologists to accurately and rapidly calculate an optimal dose of radiation. Then, they will be able to determine the direction and intensity of radioactive flows so as to have maximum harmful effect on the tumour with minimum irradiation of healthy tissue, and all within a few minutes.
Unfortunately humans are not yet aware of totally safe means to fight malignant tumours. In the final analysis all resources that kill a tumour cause varying degrees of harm to healthy cells; they destroy the tissues of the heart, kidneys, testicles and so on. Sometimes the most effective kind of therapy and, strange though it may seem, the least harmful to the patient, is the so-called optimal beam therapy, in the course of which the dose required to treat the tumour is received by the tumour itself, while the patient’s remaining organs and tissues receive a minimum dose load.
Naturally the developers of the beam therapy apparatus are doing their utmost to optimize where possible the dose distribution and, to do this, to increase the accuracy of its calculation. In an ideal situation a beam is required which would hit the tumour directly and which would rapidly weaken beyond its outer limits. But is it possible to calculate in advance the parameters of the beam in such a way so as to pre-plan the radiation dose throughout its path in the patient’s organism? Our body after all is not an ideal homogeneous environment; knowing the laws of interaction of it with one or another form of radiation, it would be easy to calculate the dose in each point of the organism during the course of the irradiation. Skin, bone, muscle: as such all tissue types interact with radiation in their own way, not to mention the fact that the human body surface itself is nothing if not irregular.
Andrew Vakhliaev | alfa
Gamma rays will reach beyond the limits of light
23.10.2017 | Chalmers University of Technology
Creation of coherent states in molecules by incoherent electrons
23.10.2017 | Tata Institute of Fundamental Research
Salmonellae are dangerous pathogens that enter the body via contaminated food and can cause severe infections. But these bacteria are also known to target...
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
23.10.2017 | Event News
17.10.2017 | Event News
10.10.2017 | Event News
23.10.2017 | Life Sciences
23.10.2017 | Physics and Astronomy
23.10.2017 | Health and Medicine