RuPAC2014 - List of Keywords (factory)

Paper	Title	Other Keywords	Page
WEPSB42	Histogram Based Bremsstrahlung Radiation Source Model for the CyberKnife Medical Linear Accelerator	radiation, simulation, photon, electron	256
	A.V. Dalechina, A.I. Ksenofontov NRNU, Moscow, Russia G.E. Gorlachev N.N. Burdenko Neurosurgical Institute, Moscow, Russia
	The accuracy of dose calculations is of fundamental importance in treatment planning of radiation therapy. The dose distributions must be calculated and verified by an accurate algorithm. The Monte Carlo simulation (statistical method, based on random sampling) of radiation transport is the only method that makes it possible to perform high-precision dose calculations in the case of a complex geometry. The main bottleneck for the application of this method in practical planning of radiation therapy is the lack of a general virtual source model of the accelerator radiation source. There are several approaches that have been described in the literature. The goal of this work is to build a source model, based on histogram distributions, to represent the 6 MV photon beams from the Cyberknife stereotactic radiosurgery system* for Monte Carlo treatment planning dose calculations. The transport of particles in treatment head of Cyberknife was simulated. Energy, radial and angular distributions were calculated. Source model was created on the base of the cumulative histograms. This approach provides producing an unlimited number of particles for the next dosimetric planning. Results of source modelling were verified in comparison with full-scale simulation without model. Good agreement was shown with calculations using the source model of the linear accelerator treatment head. Chetty I.J. et al. Report of the AAPM Task Group No. 105// Med. Phys. 2007. *Francescon P., Cora S., Cavedon C. Total scatter factors of small beams // Med. Phys. 2008.

FRCA03	Electron and Positron Beams Transportation Channels to BINP Colliders	injection, positron, collider, booster	462
	I.M. Zemlyansky, D.E. Berkaev, V.A. Kiselev, I. Koop, A.V. Otboev, A.M. Semenov, A.A. Starostenko BINP SB RAS, Novosibirsk, Russia
	Funding: Ministry of Education and Science of the Russian Federation, NSh-4860.2014.2 The overview of electron and positron beams transportation channels from injection complex VEPP-5 to VEPP-4M and VEPP-2000 colliders is presented. The last one is discussed in details. The lattice functions, magnetic elements, beam diagnostic system ans vacuum system are presented. The beam commissioning is scheduled to the end of the year.
	Slides FRCA03 [1.039 MB]

Paper

Title

Other Keywords

Page

WEPSB42

Histogram Based Bremsstrahlung Radiation Source Model for the CyberKnife Medical Linear Accelerator

radiation, simulation, photon, electron

256

A.V. Dalechina, A.I. Ksenofontov
NRNU, Moscow, Russia
G.E. Gorlachev
N.N. Burdenko Neurosurgical Institute, Moscow, Russia

The accuracy of dose calculations is of fundamental importance in treatment planning of radiation therapy. The dose distributions must be calculated and verified by an accurate algorithm. The Monte Carlo simulation (statistical method, based on random sampling) of radiation transport is the only method that makes it possible to perform high-precision dose calculations in the case of a complex geometry. The main bottleneck for the application of this method in practical planning of radiation therapy is the lack of a general virtual source model of the accelerator radiation source. There are several approaches that have been described in the literature*. The goal of this work is to build a source model, based on histogram distributions, to represent the 6 MV photon beams from the Cyberknife stereotactic radiosurgery system** for Monte Carlo treatment planning dose calculations. The transport of particles in treatment head of Cyberknife was simulated. Energy, radial and angular distributions were calculated. Source model was created on the base of the cumulative histograms. This approach provides producing an unlimited number of particles for the next dosimetric planning. Results of source modelling were verified in comparison with full-scale simulation without model. Good agreement was shown with calculations using the source model of the linear accelerator treatment head.
*Chetty I.J. et al. Report of the AAPM Task Group No. 105// Med. Phys. 2007.
**Francescon P., Cora S., Cavedon C. Total scatter factors of small beams // Med. Phys. 2008.

FRCA03

Electron and Positron Beams Transportation Channels to BINP Colliders

injection, positron, collider, booster

462

I.M. Zemlyansky, D.E. Berkaev, V.A. Kiselev, I. Koop, A.V. Otboev, A.M. Semenov, A.A. Starostenko
BINP SB RAS, Novosibirsk, Russia

Funding: Ministry of Education and Science of the Russian Federation, NSh-4860.2014.2
The overview of electron and positron beams transportation channels from injection complex VEPP-5 to VEPP-4M and VEPP-2000 colliders is presented. The last one is discussed in details. The lattice functions, magnetic elements, beam diagnostic system ans vacuum system are presented. The beam commissioning is scheduled to the end of the year.

Slides FRCA03 [1.039 MB]