RuPAC2014 - List of Keywords (background)

Paper	Title	Other Keywords	Page
WECA05	Operation and Development of the BINP AMS Facility	ion, ion-source, detector, controls	134
	S. Rastigeev, A.R. Frolov, A.D. Goncharov, V. Klyuev, E.S. Konstantinov, V.V. Parkhomchuk, A.V. Petrozhitskii BINP SB RAS, Novosibirsk, Russia L.A. Kutnykova Institute of Archaeology and Ethnography, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
	The BINP AMS facility is the accelerator complex for accelerator mass spectrometry. The most distinguishing features of BINP AMS is the use of the middle energy separator of ion beams, the magnesium vapors target as a stripper and time-of-flight telescope for accurate ion selection. Present status and development of AMS complex for extension of applications are reviewed.
	Slides WECA05 [1.129 MB]

WEPSB21	Registration of Gamma Rays from the Reaction 16O(n, p)16N on the Direct Neutron Beam of Cascade Generator KG-2.5	neutron, target, detector, experiment	203
	K.V. Mitrofanov, A.S. Egorov, V.M. Piksaikin, B.F. Samylin IPPE, Obninsk, Russia
	In the present work the results of analysis of the oxygen content in the water with the help of gamma-rays registration from the reaction 16O(n, p)16N is described. The samples were installed permanently on the direct beam of neutrons generated by the reaction 7Li(d, n) in the cascade generator KG-2.5 (IPPE). A comparison was carried out with experimental data obtained by the activation method in similar experimental conditions.

WEPSB32	Positron Annihilation Spectroscopy at LEPTA Facility	positron, electron, vacuum, scattering	231
	P. Horodek, I.N. Meshkov JINR/DLNP, Dubna, Moscow region, Russia A.G. Kobets, O. Orlov, A.A. Sidorin JINR, Dubna, Moscow Region, Russia
	Since 2009 year the LEPTA facility at Joint Institute for Nuclear Research in Dubna is operated with positron beam. Today it is developed into two directions. The first one is getting orthopositronium flux in flight. Slow positrons from 22Na source are accumulated in Surko trap and then are injected into the ring where they should overlap with electrons from the sigle-pass electron beam. In this way the flux of orthopositronium atoms will appear and will be observed in the process of registration of gamma quanta from annihilation process. The second group of works focuses on using the positron injector for Positron Annihilation Spectroscopy (PAS) applications. This method is dedicated to detection of structural defects as vacancies in the solid body lattice. The latest progress of this technique is strictly connected with measurements of PAS characteristics using positron beams. The progress in the LEPTA development, the first results obtained in the PAS, idea and actual state of works concerning the construction of the pulsed positron beam will be presented. The creation of pulsed positron beams is the modern tendency in the PAS domain. It allows to measure the lifetimes of annihilating positron in the depth ca. 1 mkm under the surface. It makes possible the identification of kind of defect.

WEPSB43	Magnetic Buncher Accelerator UELV-10-10-T-1 for Studying Fluorescence and Radiation-Physical Researches	electron, radiation, bunching, injection	259
	Y.S. Pavlov, V.A. Danilichev, V.V. Dobrohotov, O.N. Nepomnyaschy, V.A. Pavlov IPCE RAS, Moscow, Russia
	Accelerator UELV-10-10-T-1 is equipped with special system of injection and magnetic buncher with the purpose of generation picoseconds the beam duration 50 ps with the current 150 A at energy 10 MeV for studying fluorescence and radiation-physical researches. For maintenance of the magnetic bunching the accelerator works in the mode of the reserved energy when duration of the pulse of injection (2,5 nanoseconds) is much less than time of filling of a wave guide energy (100 nanoseconds). At a pulse microwave of capacity 10 MW the energy which has been saved up in the wave guide, makes about 2 J. It provides an opportunity of a cutting collimator separately chosen bunch after scan of "package" by a rotary magnet. After an output from the accelerator the package electrons from 3-5 bunches acts in magnetic buncher consisting of two electromagnets. In buncher the beam is scanning as "fan", and then focused. At a current of the beam 30 A in the pulse duration 2,5 nanoseconds distinction on energy between the adjacent bunches makes of 300 keV, that provides an opportunity of the cutting collimator the separate chosen bunch after space scanning with a rotary magnet. At a magnetic bunching electrons in "head" of a bunch have the big energy and are transported on trajectories with the big radius than "tail" electrons. Thus "compression" of the bunch on time is attain and accordingly the charge of a bunch increases.

Paper

Title

Other Keywords

Page

WECA05

Operation and Development of the BINP AMS Facility

ion, ion-source, detector, controls

134

S. Rastigeev, A.R. Frolov, A.D. Goncharov, V. Klyuev, E.S. Konstantinov, V.V. Parkhomchuk, A.V. Petrozhitskii
BINP SB RAS, Novosibirsk, Russia
L.A. Kutnykova
Institute of Archaeology and Ethnography, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

The BINP AMS facility is the accelerator complex for accelerator mass spectrometry. The most distinguishing features of BINP AMS is the use of the middle energy separator of ion beams, the magnesium vapors target as a stripper and time-of-flight telescope for accurate ion selection. Present status and development of AMS complex for extension of applications are reviewed.

Slides WECA05 [1.129 MB]

WEPSB21

Registration of Gamma Rays from the Reaction 16O(n, p)16N on the Direct Neutron Beam of Cascade Generator KG-2.5

neutron, target, detector, experiment

203

K.V. Mitrofanov, A.S. Egorov, V.M. Piksaikin, B.F. Samylin
IPPE, Obninsk, Russia

In the present work the results of analysis of the oxygen content in the water with the help of gamma-rays registration from the reaction 16O(n, p)16N is described. The samples were installed permanently on the direct beam of neutrons generated by the reaction 7Li(d, n) in the cascade generator KG-2.5 (IPPE). A comparison was carried out with experimental data obtained by the activation method in similar experimental conditions.

WEPSB32

Positron Annihilation Spectroscopy at LEPTA Facility

positron, electron, vacuum, scattering

231

P. Horodek, I.N. Meshkov
JINR/DLNP, Dubna, Moscow region, Russia
A.G. Kobets, O. Orlov, A.A. Sidorin
JINR, Dubna, Moscow Region, Russia

Since 2009 year the LEPTA facility at Joint Institute for Nuclear Research in Dubna is operated with positron beam. Today it is developed into two directions. The first one is getting orthopositronium flux in flight. Slow positrons from 22Na source are accumulated in Surko trap and then are injected into the ring where they should overlap with electrons from the sigle-pass electron beam. In this way the flux of orthopositronium atoms will appear and will be observed in the process of registration of gamma quanta from annihilation process. The second group of works focuses on using the positron injector for Positron Annihilation Spectroscopy (PAS) applications. This method is dedicated to detection of structural defects as vacancies in the solid body lattice. The latest progress of this technique is strictly connected with measurements of PAS characteristics using positron beams. The progress in the LEPTA development, the first results obtained in the PAS, idea and actual state of works concerning the construction of the pulsed positron beam will be presented. The creation of pulsed positron beams is the modern tendency in the PAS domain. It allows to measure the lifetimes of annihilating positron in the depth ca. 1 mkm under the surface. It makes possible the identification of kind of defect.

WEPSB43

Magnetic Buncher Accelerator UELV-10-10-T-1 for Studying Fluorescence and Radiation-Physical Researches

electron, radiation, bunching, injection

259

Y.S. Pavlov, V.A. Danilichev, V.V. Dobrohotov, O.N. Nepomnyaschy, V.A. Pavlov
IPCE RAS, Moscow, Russia

Accelerator UELV-10-10-T-1 is equipped with special system of injection and magnetic buncher with the purpose of generation picoseconds the beam duration 50 ps with the current 150 A at energy 10 MeV for studying fluorescence and radiation-physical researches. For maintenance of the magnetic bunching the accelerator works in the mode of the reserved energy when duration of the pulse of injection (2,5 nanoseconds) is much less than time of filling of a wave guide energy (100 nanoseconds). At a pulse microwave of capacity 10 MW the energy which has been saved up in the wave guide, makes about 2 J. It provides an opportunity of a cutting collimator separately chosen bunch after scan of "package" by a rotary magnet. After an output from the accelerator the package electrons from 3-5 bunches acts in magnetic buncher consisting of two electromagnets. In buncher the beam is scanning as "fan", and then focused. At a current of the beam 30 A in the pulse duration 2,5 nanoseconds distinction on energy between the adjacent bunches makes of 300 keV, that provides an opportunity of the cutting collimator the separate chosen bunch after space scanning with a rotary magnet. At a magnetic bunching electrons in "head" of a bunch have the big energy and are transported on trajectories with the big radius than "tail" electrons. Thus "compression" of the bunch on time is attain and accordingly the charge of a bunch increases.