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Molecular ion acceleration using tandem accelerator

Abstract

In TIARA compound beam radiation system, cluster beams have been produced using 3 MV tandem accelerator (9SDH-2) to supply them to various radiation on injection experiments. Till now, productions of C{sub 2-8}, Si{sub 2-4} and O{sub 2} and their accelerations up to 6 MeV have been succeeded. This study aimed at production and acceleration of B{sub 2-4} and LiF. Anion clusters were produced using the conventional ion source of cesium sputter type. The proportions of atoms, molecules and clusters elicited from the ion source were varied depending on the material`s properties and the operating conditions of ion source such as sample temperature, sputter voltage and the shape of sample. The anion clusters were accelerated toward the high voltage terminal in the center of tandem accelerator, leading to cations through losing their electrons by the collision to N{sub 2} gas in a charge conversion cell at the terminal. Positively charged cluster ions could be obtained by modulating the pressure of N{sub 2} gas. Thus, B{sub 2} (64 nA), B{sub 3} (4.4 nA) and B{sub 4} (2.7 nA) have been produced and their maximum survival probabilities were higher than those of carbon or silicon clusters. In addition, the relationship between beam current  More>>
Authors:
Saito, Yuichi; Mizuhashi, Kiyoshi; Tajima, Satoshi [1] 
  1. Japan Atomic Energy Research Inst., Takasaki, Gunma (Japan). Takasaki Radiation Chemistry Research Establishment
Publication Date:
Dec 01, 1996
Product Type:
Conference
Report Number:
INIS-JP-078; CONF-9607207-
Reference Number:
SCA: 430303; PA: JPN-98:001268; EDB-98:039926; SN: 98001918503
Resource Relation:
Conference: 9. workshop on tandem accelerators and peripheral techniques, Tokai (Japan), 4-5 Jul 1996; Other Information: PBD: Dec 1996; Related Information: Is Part Of Proceedings of 9th workshop on tandem accelerators and peripheral techniques; PB: 119 p.; Dai-9-kai tandemu kasokuki oyobi sono shuhengijutsu no kenkyukai hokokushu
Subject:
43 PARTICLE ACCELERATORS; CLUSTER BEAMS; ION BEAMS; TANDEM ELECTROSTATIC ACCELERATORS; ACCELERATION; ANIONS; BORON; ATOMIC CLUSTERS; ION PAIRS; LITHIUM FLUORIDES; MOLECULAR CLUSTERS
OSTI ID:
588512
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE98708353; TRN: JP9801268
Availability:
OSTI as DE98708353
Submitting Site:
JPN
Size:
pp. 100-102
Announcement Date:

Citation Formats

Saito, Yuichi, Mizuhashi, Kiyoshi, and Tajima, Satoshi. Molecular ion acceleration using tandem accelerator. Japan: N. p., 1996. Web.
Saito, Yuichi, Mizuhashi, Kiyoshi, & Tajima, Satoshi. Molecular ion acceleration using tandem accelerator. Japan.
Saito, Yuichi, Mizuhashi, Kiyoshi, and Tajima, Satoshi. 1996. "Molecular ion acceleration using tandem accelerator." Japan.
@misc{etde_588512,
title = {Molecular ion acceleration using tandem accelerator}
author = {Saito, Yuichi, Mizuhashi, Kiyoshi, and Tajima, Satoshi}
abstractNote = {In TIARA compound beam radiation system, cluster beams have been produced using 3 MV tandem accelerator (9SDH-2) to supply them to various radiation on injection experiments. Till now, productions of C{sub 2-8}, Si{sub 2-4} and O{sub 2} and their accelerations up to 6 MeV have been succeeded. This study aimed at production and acceleration of B{sub 2-4} and LiF. Anion clusters were produced using the conventional ion source of cesium sputter type. The proportions of atoms, molecules and clusters elicited from the ion source were varied depending on the material`s properties and the operating conditions of ion source such as sample temperature, sputter voltage and the shape of sample. The anion clusters were accelerated toward the high voltage terminal in the center of tandem accelerator, leading to cations through losing their electrons by the collision to N{sub 2} gas in a charge conversion cell at the terminal. Positively charged cluster ions could be obtained by modulating the pressure of N{sub 2} gas. Thus, B{sub 2} (64 nA), B{sub 3} (4.4 nA) and B{sub 4} (2.7 nA) have been produced and their maximum survival probabilities were higher than those of carbon or silicon clusters. In addition, the relationship between beam current and gas pressure was investigated for Bn (n = 2-4) and LiF. (M.N.)}
place = {Japan}
year = {1996}
month = {Dec}
}