Results 41 to 50 of about 3,468 (205)

Microdosimetry test on double layer beam shaping assembly neutron beam as a boron neutron capture therapy neutron source using PHITS code [PDF]

Ядерна фізика та енергетика
A microdosimetry test on a double layer beam shaping assembly (DLBSA) neutron beam has been carried out using the particle and heavy ion transport code system (PHITS).
Bilalodin, A. Haryadi, Sehah, Zusfahair, Y. Sardjono, R. Tursinah   +5 more
doaj   +1 more source

Microdosimetry Study of Proton Quality Factor Using Analytic Model Calculations

Applied Sciences, 2022
The quality factor (Q) is formally linked to the stochastic (e.g., carcinogenic) risk of diverse ionizing radiations at low doses and/or low dose rates.
Alexis Papadopoulos, Ioanna Kyriakou, Yusuke Matsuya, Sébastien Incerti, Ioannis A. Daglis, Dimitris Emfietzoglou   +5 more
doaj   +1 more source

Repeatability and Reproducibility of Microdosimetry With a Mini-TEPC

Frontiers in Physics, 2021
Experimental microdosimetry measures the energy deposited in a microscopic sensitive volume (SV) by single ionizing particles traversing the SV or passing by.
A. Bianchi, A. Bianchi, A. Bianchi, A. Selva, P. Colautti, G. Petringa, P. Cirrone, B. Reniers, A. Parisi, F. Vanhavere, V. Conte   +10 more
doaj   +1 more source

The variance-covariance method: Microdosimetry in time-varying low dose-rate radiation fields [PDF]

, 1988
The variance-covariance method is employed at low doses and in radiation fields of low dose rates from an241Am (4 nGy/s) and a90Sr (300 nGy/s) source. The preliminary applications and results illustrate some of the potential of the method, and show that ...
Breckow, Joachim, Kellerer, Albrecht M., Roos, H., Wenning, A.   +3 more
core   +1 more source

Miniaturized microdosimeters for hadron therapy

Frontiers in Sensors
Microdosimetry measures the stochastic fluctuations of energy imparted by radiation at the micrometer level and can provide measurable quantities linked to biological effectiveness.
Anna Selva, Anna Bianchi, Alberto Fazzi, Valeria Conte   +3 more
doaj   +1 more source

Boron Neutron Capture Therapy: Microdosimetry at Different Boron Concentrations

Applied Sciences, 2023
This paper explores the role of microdosimetry in boron neutron capture therapy (BNCT), a cancer treatment involving the selective accumulation of boron-containing compounds in cancer cells, followed by neutron irradiation.
Valeria Conte, Anna Bianchi, Anna Selva
doaj   +1 more source

LET measurements in proton and helium-ion beams of therapeutic energies using a silicon pixel detector towards a tool for quality assurance. [PDF]

Med Phys
Abstract Background As advanced treatment plans increasingly include optimizing both dose and linear energy transfer (LET), there is a growing demand for tools to measure LET in clinical settings. Although various detection systems have been investigated in this pursuit, the scarcity of detectors capable of providing per‐ion data for a fast and ...
Hamad Y, Sari FK, Félix-Bautista R, Martišíková M, Mairani A, Gehrke T.   +5 more
europepmc   +2 more sources

Considerations on a revision of the quality factor [PDF]

, 1988
A modified analytical expression is proposed for the revised quality factor that has been suggested by a liaison group of ICRP and ICRU. With this modification one obtains, for sparsely ionizing radiation, a quality factor which is proportional to the ...
Hahn, K., Kellerer, Albrecht M.
core   +1 more source

An algorithm for LET-analysis [PDF]

, 1972
An algorithm for the derivation of LET-distributions from pulse- height spectra obtained with proportional counters is described. The method is based on Fourier transformation: it is applicable to spherical as well as non-spherical proportional counters.
A M Kellerer, Biavati M H, Birkhoff R D, Cooley I W, Feller W, ICRU, Kellerer A M, Kellerer A M, Kellerer A M, Rossi H H, Turner J E, Wilson K S J   +11 more
core   +1 more source

Radiobiological Outcomes, Microdosimetric Evaluations and Monte Carlo Predictions in Eye Proton Therapy

Applied Sciences, 2021
CATANA (Centro di AdroTerapia ed Applicazioni Nucleari Avanzate) was the first Italian protontherapy facility dedicated to the treatment of ocular neoplastic pathologies.
Giada Petringa, Marco Calvaruso, Valeria Conte, Pavel Bláha, Valentina Bravatà, Francesco Paolo Cammarata, Giacomo Cuttone, Giusi Irma Forte, Otilija Keta, Lorenzo Manti, Luigi Minafra, Vladana Petković, Ivan Petrović, Selene Richiusa, Aleksandra Ristić Fira, Giorgio Russo, Giuseppe Antonio Pablo Cirrone   +16 more
doaj   +1 more source