High-power rotating wheel targets at RIKEN

Atsushi Yoshida; Kousuke Morita; Kouji Morimoto; Daiya Kaji; Toshiyuki Kubo; Yutaka Takahashi; Akira Ozawa; Isao Tanihata

doi:10.1016/j.nima.2003.11.408

High-power rotating wheel targets at RIKEN

Atsushi Yoshida, Kousuke Morita, Kouji Morimoto, Daiya Kaji, Toshiyuki Kubo, Yutaka Takahashi, Akira Ozawa, Isao Tanihata

Research output: Contribution to journal › Conference article › peer-review

14 Citations (Scopus)

Abstract

Two kinds of rotating wheel targets for high-power heavy ion reaction have been developed. One is a thick disk target with water-cooling being developed for the in-flight RI beam separator (BigRIPS). An in-beam test was performed using ⁴⁰Ar beam at 24AMeV, 1.9particle μA, with the beam spot size 3mm in diameter, resulting 0.25GW/m² beam power stopped at the surface of carbon disk 2mm in thickness and 260mm in diameter. It performed stably without melting. A simulation study has been developed and its possibility for the use of BigRIPS is discussed. The second is a thin target foil mounted on a wheel disk which rotates in He cooling gas of 13.32-133.2Pa. Its main use is in fusion reactions to search for super-heavy elements by using the gas-filled recoil separator (GARIS). A typical foil is Pb or Bi of 200-300μg/cm² in thickness evaporated onto a carbon backing foil of 30μg/cm² thickness, and covered by evaporated carbon of 10μg/cm² thickness. It can withstand long use under high-intensity ⁶⁴Ni beam at 311MeV, and 0.5particle μA.

Original language	English
Pages (from-to)	65-71
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	521
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2003.11.408
Publication status	Published - Mar 21 2004
Externally published	Yes
Event	Accelerator Target Technology for the 21st Century. Proceeding - Argonne, IL., United States Duration: Nov 4 2002 → Nov 8 2002

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nima.2003.11.408

Cite this

High-power rotating wheel targets at RIKEN. / Yoshida, Atsushi; Morita, Kousuke; Morimoto, Kouji; Kaji, Daiya; Kubo, Toshiyuki; Takahashi, Yutaka; Ozawa, Akira; Tanihata, Isao.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 521, No. 1, 21.03.2004, p. 65-71.

Research output: Contribution to journal › Conference article › peer-review

@article{11069e9024f04923a51807c936c76551,

title = "High-power rotating wheel targets at RIKEN",

abstract = "Two kinds of rotating wheel targets for high-power heavy ion reaction have been developed. One is a thick disk target with water-cooling being developed for the in-flight RI beam separator (BigRIPS). An in-beam test was performed using 40Ar beam at 24AMeV, 1.9particle μA, with the beam spot size 3mm in diameter, resulting 0.25GW/m2 beam power stopped at the surface of carbon disk 2mm in thickness and 260mm in diameter. It performed stably without melting. A simulation study has been developed and its possibility for the use of BigRIPS is discussed. The second is a thin target foil mounted on a wheel disk which rotates in He cooling gas of 13.32-133.2Pa. Its main use is in fusion reactions to search for super-heavy elements by using the gas-filled recoil separator (GARIS). A typical foil is Pb or Bi of 200-300μg/cm2 in thickness evaporated onto a carbon backing foil of 30μg/cm2 thickness, and covered by evaporated carbon of 10μg/cm2 thickness. It can withstand long use under high-intensity 64Ni beam at 311MeV, and 0.5particle μA.",

author = "Atsushi Yoshida and Kousuke Morita and Kouji Morimoto and Daiya Kaji and Toshiyuki Kubo and Yutaka Takahashi and Akira Ozawa and Isao Tanihata",

year = "2004",

month = mar,

day = "21",

doi = "10.1016/j.nima.2003.11.408",

language = "English",

volume = "521",

pages = "65--71",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - High-power rotating wheel targets at RIKEN

AU - Yoshida, Atsushi

AU - Morita, Kousuke

AU - Morimoto, Kouji

AU - Kaji, Daiya

AU - Kubo, Toshiyuki

AU - Takahashi, Yutaka

AU - Ozawa, Akira

AU - Tanihata, Isao

PY - 2004/3/21

Y1 - 2004/3/21

N2 - Two kinds of rotating wheel targets for high-power heavy ion reaction have been developed. One is a thick disk target with water-cooling being developed for the in-flight RI beam separator (BigRIPS). An in-beam test was performed using 40Ar beam at 24AMeV, 1.9particle μA, with the beam spot size 3mm in diameter, resulting 0.25GW/m2 beam power stopped at the surface of carbon disk 2mm in thickness and 260mm in diameter. It performed stably without melting. A simulation study has been developed and its possibility for the use of BigRIPS is discussed. The second is a thin target foil mounted on a wheel disk which rotates in He cooling gas of 13.32-133.2Pa. Its main use is in fusion reactions to search for super-heavy elements by using the gas-filled recoil separator (GARIS). A typical foil is Pb or Bi of 200-300μg/cm2 in thickness evaporated onto a carbon backing foil of 30μg/cm2 thickness, and covered by evaporated carbon of 10μg/cm2 thickness. It can withstand long use under high-intensity 64Ni beam at 311MeV, and 0.5particle μA.

AB - Two kinds of rotating wheel targets for high-power heavy ion reaction have been developed. One is a thick disk target with water-cooling being developed for the in-flight RI beam separator (BigRIPS). An in-beam test was performed using 40Ar beam at 24AMeV, 1.9particle μA, with the beam spot size 3mm in diameter, resulting 0.25GW/m2 beam power stopped at the surface of carbon disk 2mm in thickness and 260mm in diameter. It performed stably without melting. A simulation study has been developed and its possibility for the use of BigRIPS is discussed. The second is a thin target foil mounted on a wheel disk which rotates in He cooling gas of 13.32-133.2Pa. Its main use is in fusion reactions to search for super-heavy elements by using the gas-filled recoil separator (GARIS). A typical foil is Pb or Bi of 200-300μg/cm2 in thickness evaporated onto a carbon backing foil of 30μg/cm2 thickness, and covered by evaporated carbon of 10μg/cm2 thickness. It can withstand long use under high-intensity 64Ni beam at 311MeV, and 0.5particle μA.

UR - http://www.scopus.com/inward/record.url?scp=1642382523&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1642382523&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2003.11.408

DO - 10.1016/j.nima.2003.11.408

M3 - Conference article

AN - SCOPUS:1642382523

VL - 521

SP - 65

EP - 71

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

IS - 1

T2 - Accelerator Target Technology for the 21st Century. Proceeding

Y2 - 4 November 2002 through 8 November 2002

ER -

High-power rotating wheel targets at RIKEN

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this