IPAC2011 - List of Authors (Ronsivalle, C.)

Paper

Title

Page

Advanced Beam Manipulation Techniques at SPARC

2877

A. Mostacci, D. Alesini, P. Antici, A. Bacci, M. Bellaveglia, R. Boni, M. Castellano, E. Chiadroni, G. Di Pirro, A. Drago, M. Ferrario, A. Gallo, G. Gatti, A. Ghigo, E. Pace, A.R. Rossi, B. Spataro, C. Vaccarezza
INFN/LNF, Frascati (Roma), Italy
A. Cianchi
Università di Roma II Tor Vergata, Roma, Italy
B. Marchetti
INFN-Roma II, Roma, Italy
M. Migliorati
University of Rome "La Sapienza", Rome, Italy
L. Palumbo
Rome University La Sapienza, Roma, Italy
V. Petrillo, L. Serafini
Istituto Nazionale di Fisica Nucleare, Milano, Italy
C. Ronsivalle
ENEA C.R. Frascati, Frascati (Roma), Italy

SPARC in Frascati is a high brightness photo-injector used to drive Free Electron Laser experiments and explore advanced beam manipulation techniques. The R&D effort made for the optimization of the beam parameters will be presented here, together with the major experimental results achieved. In particular, we will focus on the generation of sub-picosecond, high brightness electron bunch trains via velocity bunching technique (the so called comb beam). Such bunch trains can be used to drive tunable and narrow band THz sources, FELs and plasma wake field accelerators.

Slides THYB01 [20.772 MB]

THPS067

The TOP-IMPLART Project

3580

C. Ronsivalle, M.C. Carpanese, G. Messina, L. Picardi, S. Sandri
ENEA C.R. Frascati, Frascati (Roma), Italy
M. Benassi, L. Strigari
IFO, Roma, Italy
E. Cisbani, S.F. Frullani, V. Macellari
ISS, Rome, Italy
C. Marino
ENEA Casaccia, Roma, Italy

The TOP-IMPLART project, developed by ENEA, the Italian National Institute of Health (ISS) and Regina Elena National Cancer Institute-IFO-Rome is devoted to the realization of a proton therapy centre to be sited at IFO, based on a sequence of linear accelerators and designed with three treatment rooms: one with a 150 MeV beam for shallow tumors and two with a 230 MeV beam for deep tumors. The first part of the acronym remarks the heritage from the TOP Project developed in 1998-2005 by ISS and ENEA, whilst the second part (“Intensity Modulated Proton Linear Accelerator for RadioTherapy”) exploits the possibility to perform a highly conformational therapy based on spatial and intensity modulation of the beam. The segment up to 150 MeV, funded by the Italian “Regione Lazio” for 11M€ over four years, is under installation at ENEA-Frascati for its validation before the transfer to IFO. The low energy part is also used as a facility for radiobiology experiments in the framework of a satellite program foreseeing cells irradiation at 7 MeV with a vertical and horizontal beam and small animal irradiation with a 17.5 MeV horizontal beam. The status of the Project is presented.

THPS068

A Proton Therapy Test Facility: The Radiation Protection Design

3583

S. Sandri, M.C. Carpanese, G. Ottaviano, L. Picardi, C. Poggi, C. Ronsivalle
ENEA C.R. Frascati, Frascati (Roma), Italy

A proton therapy test facility is planned to be sited in the Frascati ENEA Research Center, in Italy. A 30 m long, 3 m wide bunker has to be designed to host a proton linear accelerator with a low beam current, lower than 10 nA in average, and an energy up to 150 MeV. The accelerator will be part of the TOP-IMPLART project for deep tumors treatment. The design of the 150 MeV accelerator is under study and the radiation protection solutions are considered in this phase. The linear accelerator has some safety advantages if compared to cyclotrons and synchrotrons. It can be easily housed in the long, narrow tunnel. The main radiation losses during the acceleration process occur below 20 MeV, with a low neutron production. As a consequence the barriers needed should be substantially lighter than the one used for other types of machines. In the paper the simulation models and the calculation performed with Monte Carlo codes are described. The related results are presented together with those assessed by using published experimental data. Considerations about workers and population protection are issued in the conclusions.

THPS102

Novel Schemes for the Narrow Band Sparc THz Source using a Comb like e-beam

3672

B. Marchetti
INFN-Roma II, Roma, Italy
M. Boscolo, M. Castellano, E. Chiadroni, M. Ferrario, B. Spataro, C. Vaccarezza
INFN/LNF, Frascati (Roma), Italy
A. Cianchi
Università di Roma II Tor Vergata, Roma, Italy
C. Ronsivalle
ENEA C.R. Frascati, Frascati (Roma), Italy

The development of radiation sources in the THz spectral region has become more and more interesting because of the peculiar characteristics of this radiation: it is non ionizing, it penetrates dielectrics, it is highly absorbed by polar liquids, highly reflected by metals and reveals specific "fingerprint" absorption spectra arising from fundamentals physical processes. The THz source at SPARC is an accelerator based source for research investigations (e.g. material science, biology fields). By means of e-beam manipulation technique, a longitudinal modulated beam, the so-called comb beam, can be produced at Sparc. In terms of THz sources, such e-beam distribution allows to produce high intensitiy narrow band THz radiation, whose spectrum strongly depends on the charge distribution inside the e-beam. Different linac schemes are compared. In particular, spectra obtained using the comb-beam compression through velocity bunching including a IV harmonic RF section is showed.

THPS101

Present and Perspectives of the Sparc THz Source

3669

E. Chiadroni, M. Bellaveglia, M. Boscolo, M. Castellano, G. Di Pirro, M. Ferrario, G. Gatti, E. Pace, C. Vaccarezza
INFN/LNF, Frascati (Roma), Italy
P. Calvani, S. Lupi, A. Nucara
Università di Roma I La Sapienza, Roma, Italy
L. Catani, B. Marchetti
INFN-Roma II, Roma, Italy
A. Cianchi
Università di Roma II Tor Vergata, Roma, Italy
O. Limaj
University of Rome La Sapienza, Rome, Italy
A. Mostacci, L. Palumbo
Rome University La Sapienza, Roma, Italy
C. Ronsivalle
ENEA C.R. Frascati, Frascati (Roma), Italy

The development of radiation sources in the THz spectral region has become more and more interesting because of the peculiar characteristics of this radiation: it is non ionizing, it penetrates dielectrics, it is highly absorbed by polar liquids, highly reflected by metals and reveals specific "fingerprint" absorption spectra arising from fundamentals physical processes. The THz source at SPARC is an accelerator based source for research investigations (e.g. material science, biology fields). Its measured peak power is of the order of 10⁸ W, very competitive with respect to other present sources. The present status of the source is presented and future perspectives are presented.

Paper	Title	Page
THYB01	Advanced Beam Manipulation Techniques at SPARC	2877
	A. Mostacci, D. Alesini, P. Antici, A. Bacci, M. Bellaveglia, R. Boni, M. Castellano, E. Chiadroni, G. Di Pirro, A. Drago, M. Ferrario, A. Gallo, G. Gatti, A. Ghigo, E. Pace, A.R. Rossi, B. Spataro, C. Vaccarezza INFN/LNF, Frascati (Roma), Italy A. Cianchi Università di Roma II Tor Vergata, Roma, Italy B. Marchetti INFN-Roma II, Roma, Italy M. Migliorati University of Rome "La Sapienza", Rome, Italy L. Palumbo Rome University La Sapienza, Roma, Italy V. Petrillo, L. Serafini Istituto Nazionale di Fisica Nucleare, Milano, Italy C. Ronsivalle ENEA C.R. Frascati, Frascati (Roma), Italy
	SPARC in Frascati is a high brightness photo-injector used to drive Free Electron Laser experiments and explore advanced beam manipulation techniques. The R&D effort made for the optimization of the beam parameters will be presented here, together with the major experimental results achieved. In particular, we will focus on the generation of sub-picosecond, high brightness electron bunch trains via velocity bunching technique (the so called comb beam). Such bunch trains can be used to drive tunable and narrow band THz sources, FELs and plasma wake field accelerators.
	Slides THYB01 [20.772 MB]

THPS067	The TOP-IMPLART Project	3580
	C. Ronsivalle, M.C. Carpanese, G. Messina, L. Picardi, S. Sandri ENEA C.R. Frascati, Frascati (Roma), Italy M. Benassi, L. Strigari IFO, Roma, Italy E. Cisbani, S.F. Frullani, V. Macellari ISS, Rome, Italy C. Marino ENEA Casaccia, Roma, Italy
	The TOP-IMPLART project, developed by ENEA, the Italian National Institute of Health (ISS) and Regina Elena National Cancer Institute-IFO-Rome is devoted to the realization of a proton therapy centre to be sited at IFO, based on a sequence of linear accelerators and designed with three treatment rooms: one with a 150 MeV beam for shallow tumors and two with a 230 MeV beam for deep tumors. The first part of the acronym remarks the heritage from the TOP Project developed in 1998-2005 by ISS and ENEA, whilst the second part (“Intensity Modulated Proton Linear Accelerator for RadioTherapy”) exploits the possibility to perform a highly conformational therapy based on spatial and intensity modulation of the beam. The segment up to 150 MeV, funded by the Italian “Regione Lazio” for 11M€ over four years, is under installation at ENEA-Frascati for its validation before the transfer to IFO. The low energy part is also used as a facility for radiobiology experiments in the framework of a satellite program foreseeing cells irradiation at 7 MeV with a vertical and horizontal beam and small animal irradiation with a 17.5 MeV horizontal beam. The status of the Project is presented.

THPS068	A Proton Therapy Test Facility: The Radiation Protection Design	3583
	S. Sandri, M.C. Carpanese, G. Ottaviano, L. Picardi, C. Poggi, C. Ronsivalle ENEA C.R. Frascati, Frascati (Roma), Italy
	A proton therapy test facility is planned to be sited in the Frascati ENEA Research Center, in Italy. A 30 m long, 3 m wide bunker has to be designed to host a proton linear accelerator with a low beam current, lower than 10 nA in average, and an energy up to 150 MeV. The accelerator will be part of the TOP-IMPLART project for deep tumors treatment. The design of the 150 MeV accelerator is under study and the radiation protection solutions are considered in this phase. The linear accelerator has some safety advantages if compared to cyclotrons and synchrotrons. It can be easily housed in the long, narrow tunnel. The main radiation losses during the acceleration process occur below 20 MeV, with a low neutron production. As a consequence the barriers needed should be substantially lighter than the one used for other types of machines. In the paper the simulation models and the calculation performed with Monte Carlo codes are described. The related results are presented together with those assessed by using published experimental data. Considerations about workers and population protection are issued in the conclusions.

THPS102	Novel Schemes for the Narrow Band Sparc THz Source using a Comb like e-beam	3672
	B. Marchetti INFN-Roma II, Roma, Italy M. Boscolo, M. Castellano, E. Chiadroni, M. Ferrario, B. Spataro, C. Vaccarezza INFN/LNF, Frascati (Roma), Italy A. Cianchi Università di Roma II Tor Vergata, Roma, Italy C. Ronsivalle ENEA C.R. Frascati, Frascati (Roma), Italy
	The development of radiation sources in the THz spectral region has become more and more interesting because of the peculiar characteristics of this radiation: it is non ionizing, it penetrates dielectrics, it is highly absorbed by polar liquids, highly reflected by metals and reveals specific "fingerprint" absorption spectra arising from fundamentals physical processes. The THz source at SPARC is an accelerator based source for research investigations (e.g. material science, biology fields). By means of e-beam manipulation technique, a longitudinal modulated beam, the so-called comb beam, can be produced at Sparc. In terms of THz sources, such e-beam distribution allows to produce high intensitiy narrow band THz radiation, whose spectrum strongly depends on the charge distribution inside the e-beam. Different linac schemes are compared. In particular, spectra obtained using the comb-beam compression through velocity bunching including a IV harmonic RF section is showed.

THPS101	Present and Perspectives of the Sparc THz Source	3669
	E. Chiadroni, M. Bellaveglia, M. Boscolo, M. Castellano, G. Di Pirro, M. Ferrario, G. Gatti, E. Pace, C. Vaccarezza INFN/LNF, Frascati (Roma), Italy P. Calvani, S. Lupi, A. Nucara Università di Roma I La Sapienza, Roma, Italy L. Catani, B. Marchetti INFN-Roma II, Roma, Italy A. Cianchi Università di Roma II Tor Vergata, Roma, Italy O. Limaj University of Rome La Sapienza, Rome, Italy A. Mostacci, L. Palumbo Rome University La Sapienza, Roma, Italy C. Ronsivalle ENEA C.R. Frascati, Frascati (Roma), Italy
	The development of radiation sources in the THz spectral region has become more and more interesting because of the peculiar characteristics of this radiation: it is non ionizing, it penetrates dielectrics, it is highly absorbed by polar liquids, highly reflected by metals and reveals specific "fingerprint" absorption spectra arising from fundamentals physical processes. The THz source at SPARC is an accelerator based source for research investigations (e.g. material science, biology fields). Its measured peak power is of the order of 10⁸ W, very competitive with respect to other present sources. The present status of the source is presented and future perspectives are presented.