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Pregled bibliografske jedinice broj: 307629

W Values for Protons and Carbon Ions for use in Hadron Radiotherapy


Krajcar Bronić, Ines
W Values for Protons and Carbon Ions for use in Hadron Radiotherapy // Regional and Global Aspects of Radiation Protection: Final Programme and Abstracts
Bucurest, Rumunjska: IRPA, 2007. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


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Naslov
W Values for Protons and Carbon Ions for use in Hadron Radiotherapy

Autori
Krajcar Bronić, Ines

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Regional and Global Aspects of Radiation Protection: Final Programme and Abstracts / - Bucurest, Rumunjska : IRPA, 2007

ISBN
10 973-87778-3-6

Skup
IRPA Regional Congress for Central and Eastern Europe: Regional and Global Aspects of Radiation Protection

Mjesto i datum
Brasov, Rumunjska, 24.9.-28.9.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
W value; radiotherapy; protons; heavy ions

Sažetak
Hadron radiotherapy, i.e., treatment of cancer by using protons and heavier charged ions, has received a great attention in recent years, due to the unique physical and radiobiological properties of these particles: energy deposition at a certain well-defined depth of tissue (the Bragg peak), higher efficiency in producing biological damage for the same delivered dose (i.e., higher RBE – relative biological effectiveness), higher efficiency in hypoxic conditions, low diffusion of a beam while penetrating the tissue. Therefore, hadron beam can deliver dose to the tumor region in a much pin-point fashion, while not affecting normal (healthy) tissue in front or beyond the tumor. To optimize dose delivery to a tumor in radiotherapy, one must know the energy deposition in a tissue. One of the basic quantities for dosimetry is the W value (mean energy spent by the incident particle for the formation of an electron-ion pair after complete dissipation of its initial energy). W value depends on the type and energy of radiation and on the irradiated material. Accurate knowledge of W is required for conversion of charge to deposited energy. However, available data on W are often fragmented, dispersed, and missing systematic. Recent developments in hadron radiotherapy will be shortly presented in this paper, and a systematic survey of W values for protons and carbon ions will be presented. For high-energy protons, one can find W data in N2, methane, TE gas mixtures, and air. Most of W values for carbon ions are measured for energies below 1 MeV/amu, where major variations in energy dependence are observed. Here, special attention will be paid to carbon ions of high energies (200 – 400 MeV/amu), that are used in carbon-ion therapy facilities.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
U Knjizi sažetaka samo sažetak, kao i na web stranici, a cjeloviti rad na pripadajućem CD ROM-u.



POVEZANOST RADA


Projekti:
098-0982709-2741 - Prirodni radioizotopi u istraživanju krških ekosustava i datiranju (Horvatinčić, Nada, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Ines Krajcar Bronić (autor)

Citiraj ovu publikaciju:

Krajcar Bronić, Ines
W Values for Protons and Carbon Ions for use in Hadron Radiotherapy // Regional and Global Aspects of Radiation Protection: Final Programme and Abstracts
Bucurest, Rumunjska: IRPA, 2007. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Krajcar Bronić, I. (2007) W Values for Protons and Carbon Ions for use in Hadron Radiotherapy. U: Regional and Global Aspects of Radiation Protection: Final Programme and Abstracts.
@article{article, author = {Krajcar Broni\'{c}, I.}, year = {2007}, pages = {163-164 T8-O7}, keywords = {W value, radiotherapy, protons, heavy ions}, isbn = {10 973-87778-3-6}, title = {W Values for Protons and Carbon Ions for use in Hadron Radiotherapy}, keyword = {W value, radiotherapy, protons, heavy ions}, publisher = {IRPA}, publisherplace = {Brasov, Rumunjska} }
@article{article, author = {Krajcar Broni\'{c}, I.}, year = {2007}, pages = {163-164 T8-O7}, keywords = {W value, radiotherapy, protons, heavy ions}, isbn = {10 973-87778-3-6}, title = {W Values for Protons and Carbon Ions for use in Hadron Radiotherapy}, keyword = {W value, radiotherapy, protons, heavy ions}, publisher = {IRPA}, publisherplace = {Brasov, Rumunjska} }




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