Mass resolution for iron isotopes in CR-39 track detector

Satoshi Kodaira; Nobuyuki Hasebe; Tadayoshi Doke; Atsushi Kitagawa; Hisashi Kitamura; Shinji Sato; Yukio Uchihori; Nakahiro Yasuda; Koichi Ogura; Hiroko Tawara

doi:10.1143/JJAP.43.6358

Mass resolution for iron isotopes in CR-39 track detector

Satoshi Kodaira^*, Nobuyuki Hasebe, Tadayoshi Doke, Atsushi Kitagawa, Hisashi Kitamura, Shinji Sato, Yukio Uchihori, Nakahiro Yasuda, Koichi Ogura, Hiroko Tawara

^*Corresponding author for this work

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

16 Citations (Scopus)

Abstract

We have verified the capability of a CR-39 track detector for isotope identification using iron beam from the heavy-ion accelerator of HIMAC at NIRS. The same CR-39 stack was independently exposed to ⁵⁶Fe and ⁵⁵Fe ions with an energy of 460 MeV/nucleon. Mass resolutions for ⁵⁶Fe and ⁵⁵Fe ions were determined to be 0.28 ± 0.12 amu and 0.28 ± 0.11 amu in rms, respectively. A detailed analysis of the sources of the mass dispersion in the present mass identification experiment showed that significant errors were caused in the measurements of the surface position and the thickness of CR-39 sheets. By eliminating these errors as much as possible, the mass resolution is expected to be improved to ∼0.20 amu.

Original language	English
Pages (from-to)	6358-6363
Number of pages	6
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	43
Issue number	9 A
DOIs	https://doi.org/10.1143/JJAP.43.6358
Publication status	Published - 2004 Sept

Keywords

CR-39
Galactic cosmic rays
Iron isotopes
Mass resolution
Solid-state track detector

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1143/JJAP.43.6358

Cite this

@article{a0c12e761bda4a2c97895a0057bf0f6d,

title = "Mass resolution for iron isotopes in CR-39 track detector",

abstract = "We have verified the capability of a CR-39 track detector for isotope identification using iron beam from the heavy-ion accelerator of HIMAC at NIRS. The same CR-39 stack was independently exposed to 56Fe and 55Fe ions with an energy of 460 MeV/nucleon. Mass resolutions for 56Fe and 55Fe ions were determined to be 0.28 ± 0.12 amu and 0.28 ± 0.11 amu in rms, respectively. A detailed analysis of the sources of the mass dispersion in the present mass identification experiment showed that significant errors were caused in the measurements of the surface position and the thickness of CR-39 sheets. By eliminating these errors as much as possible, the mass resolution is expected to be improved to ∼0.20 amu.",

keywords = "CR-39, Galactic cosmic rays, Iron isotopes, Mass resolution, Solid-state track detector",

author = "Satoshi Kodaira and Nobuyuki Hasebe and Tadayoshi Doke and Atsushi Kitagawa and Hisashi Kitamura and Shinji Sato and Yukio Uchihori and Nakahiro Yasuda and Koichi Ogura and Hiroko Tawara",

year = "2004",

month = sep,

doi = "10.1143/JJAP.43.6358",

language = "English",

volume = "43",

pages = "6358--6363",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "9 A",

}

TY - JOUR

T1 - Mass resolution for iron isotopes in CR-39 track detector

AU - Kodaira, Satoshi

AU - Hasebe, Nobuyuki

AU - Doke, Tadayoshi

AU - Kitagawa, Atsushi

AU - Kitamura, Hisashi

AU - Sato, Shinji

AU - Uchihori, Yukio

AU - Yasuda, Nakahiro

AU - Ogura, Koichi

AU - Tawara, Hiroko

PY - 2004/9

Y1 - 2004/9

N2 - We have verified the capability of a CR-39 track detector for isotope identification using iron beam from the heavy-ion accelerator of HIMAC at NIRS. The same CR-39 stack was independently exposed to 56Fe and 55Fe ions with an energy of 460 MeV/nucleon. Mass resolutions for 56Fe and 55Fe ions were determined to be 0.28 ± 0.12 amu and 0.28 ± 0.11 amu in rms, respectively. A detailed analysis of the sources of the mass dispersion in the present mass identification experiment showed that significant errors were caused in the measurements of the surface position and the thickness of CR-39 sheets. By eliminating these errors as much as possible, the mass resolution is expected to be improved to ∼0.20 amu.

AB - We have verified the capability of a CR-39 track detector for isotope identification using iron beam from the heavy-ion accelerator of HIMAC at NIRS. The same CR-39 stack was independently exposed to 56Fe and 55Fe ions with an energy of 460 MeV/nucleon. Mass resolutions for 56Fe and 55Fe ions were determined to be 0.28 ± 0.12 amu and 0.28 ± 0.11 amu in rms, respectively. A detailed analysis of the sources of the mass dispersion in the present mass identification experiment showed that significant errors were caused in the measurements of the surface position and the thickness of CR-39 sheets. By eliminating these errors as much as possible, the mass resolution is expected to be improved to ∼0.20 amu.

KW - CR-39

KW - Galactic cosmic rays

KW - Iron isotopes

KW - Mass resolution

KW - Solid-state track detector

UR - http://www.scopus.com/inward/record.url?scp=9144238971&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=9144238971&partnerID=8YFLogxK

U2 - 10.1143/JJAP.43.6358

DO - 10.1143/JJAP.43.6358

M3 - Article

AN - SCOPUS:9144238971

SN - 0021-4922

VL - 43

SP - 6358

EP - 6363

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

IS - 9 A

ER -

Mass resolution for iron isotopes in CR-39 track detector

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this