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Development of an interdigital-H linac for unstable nuclei and INS

Abstract

In the radioactive-beam facility at INS, unstable nuclei with a charge-to-mass ratio greater than 1/10 are accelerated from 170 to 1046 keV/u by an interdigital-H linac. Designed IH linac consists of four acceleration tanks and three sets of quadrupole triplets placed between tanks. Output energy is continuously variable by changing rf power and phase of the last operating tank. On the basis of an equivalent circuit analysis, low power models were constructed. For the tank-4 model, resonant frequency close to the design value was obtained by adjusting the size of the magnetic flux inducer. One set of the quadrupole triplet was constructed to investigate the coupling effect between an adjacent magnets and the effect of saturated magnetic flux on the field gradient. In this paper, a summary of the studies done so far and a present status on the IH linac are described together with a brief introduction of the new facility. (author).
Publication Date:
Nov 01, 1993
Product Type:
Technical Report
Report Number:
INS-1010
Reference Number:
SCA: 430100; PA: JPN-94:003174; EDB-94:076821; ERA-19:019323; NTS-95:006000; SN: 94001202217
Resource Relation:
Other Information: PBD: Nov 1993
Subject:
43 PARTICLE ACCELERATORS; LINEAR ACCELERATORS; DESIGN; HEAVY ION ACCELERATORS; RADIOISOTOPES; ACCELERATION; CHARGE STATES; BEAM FOCUSING MAGNETS; QUADRUPOLES; CAVITY RESONATORS; EQUIVALENT CIRCUITS; DRIFT TUBES; RESEARCH PROGRAMS; 430100; DESIGN, DEVELOPMENT, AND OPERATION
OSTI ID:
10149381
Research Organizations:
Tokyo Univ., Tanashi (Japan). Inst. for Nuclear Study
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE94765444; TRN: JP9403174
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
6 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Tomizawa, M, Arai, S, Doi, M, Katayama, T, Niki, K, Yoshizawa, M, and Hattori, T. Development of an interdigital-H linac for unstable nuclei and INS. Japan: N. p., 1993. Web.
Tomizawa, M, Arai, S, Doi, M, Katayama, T, Niki, K, Yoshizawa, M, & Hattori, T. Development of an interdigital-H linac for unstable nuclei and INS. Japan.
Tomizawa, M, Arai, S, Doi, M, Katayama, T, Niki, K, Yoshizawa, M, and Hattori, T. 1993. "Development of an interdigital-H linac for unstable nuclei and INS." Japan.
@misc{etde_10149381,
title = {Development of an interdigital-H linac for unstable nuclei and INS}
author = {Tomizawa, M, Arai, S, Doi, M, Katayama, T, Niki, K, Yoshizawa, M, and Hattori, T}
abstractNote = {In the radioactive-beam facility at INS, unstable nuclei with a charge-to-mass ratio greater than 1/10 are accelerated from 170 to 1046 keV/u by an interdigital-H linac. Designed IH linac consists of four acceleration tanks and three sets of quadrupole triplets placed between tanks. Output energy is continuously variable by changing rf power and phase of the last operating tank. On the basis of an equivalent circuit analysis, low power models were constructed. For the tank-4 model, resonant frequency close to the design value was obtained by adjusting the size of the magnetic flux inducer. One set of the quadrupole triplet was constructed to investigate the coupling effect between an adjacent magnets and the effect of saturated magnetic flux on the field gradient. In this paper, a summary of the studies done so far and a present status on the IH linac are described together with a brief introduction of the new facility. (author).}
place = {Japan}
year = {1993}
month = {Nov}
}