Construction of a bunched beam of polarized slow-positron

M. Irako; M. Chiba; M. Fukusima; R. Hamatsu; M. Hirose; T. Hirose; H. Iijima; T. Kumita; N. C. Mazumdar; M. Washio

doi:10.4028/www.scientific.net/msf.255-257.750

Construction of a bunched beam of polarized slow-positron

M. Irako^*, M. Chiba, M. Fukusima, R. Hamatsu, M. Hirose, T. Hirose, H. Iijima, T. Kumita, N. C. Mazumdar, M. Washio

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We have constructed a polarized slow-positron beam generator TOPPS based on the design principle that the beam is bunched and the spin direction is controllable. The positrons from the 150 mCi ²²Na are implanted on the tungsten moderator of 10 μm. The TOPPS is optimized to suppress the depolarization of the positron beams by utilizing the programs which we developed to calculate the spin motion of charged particles in electric and magnetic fields as well as in materials.

Original language	English
Pages (from-to)	750-753
Number of pages	4
Journal	Materials Science Forum
Volume	255-257
DOIs	https://doi.org/10.4028/www.scientific.net/msf.255-257.750
Publication status	Published - 1997
Externally published	Yes

Keywords

Backing
Bunched Beam
Depolarization
Isotope
Moderator
Ortho-Positronium
Para-Positronium
Polarimeter
Polarized Slow-Positron
Positron

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.4028/www.scientific.net/msf.255-257.750

Cite this

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title = "Construction of a bunched beam of polarized slow-positron",

abstract = "We have constructed a polarized slow-positron beam generator TOPPS based on the design principle that the beam is bunched and the spin direction is controllable. The positrons from the 150 mCi 22Na are implanted on the tungsten moderator of 10 μm. The TOPPS is optimized to suppress the depolarization of the positron beams by utilizing the programs which we developed to calculate the spin motion of charged particles in electric and magnetic fields as well as in materials.",

keywords = "Backing, Bunched Beam, Depolarization, Isotope, Moderator, Ortho-Positronium, Para-Positronium, Polarimeter, Polarized Slow-Positron, Positron",

author = "M. Irako and M. Chiba and M. Fukusima and R. Hamatsu and M. Hirose and T. Hirose and H. Iijima and T. Kumita and Mazumdar, {N. C.} and M. Washio",

year = "1997",

doi = "10.4028/www.scientific.net/msf.255-257.750",

language = "English",

volume = "255-257",

pages = "750--753",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications",

}

TY - JOUR

T1 - Construction of a bunched beam of polarized slow-positron

AU - Irako, M.

AU - Chiba, M.

AU - Fukusima, M.

AU - Hamatsu, R.

AU - Hirose, M.

AU - Hirose, T.

AU - Iijima, H.

AU - Kumita, T.

AU - Mazumdar, N. C.

AU - Washio, M.

PY - 1997

Y1 - 1997

N2 - We have constructed a polarized slow-positron beam generator TOPPS based on the design principle that the beam is bunched and the spin direction is controllable. The positrons from the 150 mCi 22Na are implanted on the tungsten moderator of 10 μm. The TOPPS is optimized to suppress the depolarization of the positron beams by utilizing the programs which we developed to calculate the spin motion of charged particles in electric and magnetic fields as well as in materials.

AB - We have constructed a polarized slow-positron beam generator TOPPS based on the design principle that the beam is bunched and the spin direction is controllable. The positrons from the 150 mCi 22Na are implanted on the tungsten moderator of 10 μm. The TOPPS is optimized to suppress the depolarization of the positron beams by utilizing the programs which we developed to calculate the spin motion of charged particles in electric and magnetic fields as well as in materials.

KW - Backing

KW - Bunched Beam

KW - Depolarization

KW - Isotope

KW - Moderator

KW - Ortho-Positronium

KW - Para-Positronium

KW - Polarimeter

KW - Polarized Slow-Positron

KW - Positron

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DO - 10.4028/www.scientific.net/msf.255-257.750

M3 - Article

AN - SCOPUS:4243989453

SN - 0255-5476

VL - 255-257

SP - 750

EP - 753

JO - Materials Science Forum

JF - Materials Science Forum

ER -

Construction of a bunched beam of polarized slow-positron

Abstract

Keywords

ASJC Scopus subject areas

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