Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Masahiro Takebe"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 645:321-326
The generalized trajectory theory (the G-optk program) has been extended in order to make the method applicable to electron guns with curved and/or asymmetric cathodes. The object-image analysis mode has also been added. Enhanced capability of the up
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b2dd849df1a8116fc962395f535d299
https://doi.org/10.1016/j.nima.2010.12.140
https://doi.org/10.1016/j.nima.2010.12.140
Publikováno v:
Physics Procedia. 1(1):13-33
It has been attempted to characterize the cathode rays inside electron guns by utilizing the optical concepts familiar in the paraxial lens theory. We have proposed the Canonical Mapping Transformation (CMT) theory to obtain the gun optical parameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e046c7202f3a6381e768c744e49d1420
Autor:
Ken Abe, Hisao Kobayashi, Masahiro Takebe, Hoshio Eguchi, Masahiro Etoh, Hiromi Shibata, Masanori Satoh
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :938-943
A photo-stimulated luminescent (PSL) material, BaFBr 0:85 I 0:15 :Eu 2⁄ , was irradiated by 1 and 2 MeV He ⁄ ions. Thedeterioration of PSL signals caused by heavy irradiation was found quite stable for a long time. In situ measurements ofscintill
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5bab8248f87c38d7c060f65bb91bfdd
https://doi.org/10.1016/s0168-583x(99)01104-0
https://doi.org/10.1016/s0168-583x(99)01104-0
Publikováno v:
Shigen-to-Sozai. 116:497-501
The emanation of radon from rock samples was detected using an imaging plate, which acts as a highly sensitive two-dimensional radiation sensor. Radon alpha-rays, including alpha disintegration of thoron and their daughter nuclides, are measurable us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2695637253bcf522f6cd4f4ddfc3b57
https://doi.org/10.2473/shigentosozai.116.497
https://doi.org/10.2473/shigentosozai.116.497
Publikováno v:
GEOCHEMICAL JOURNAL. 34:1-9
Two-dimensional measurement of radiation produced by natural irradiation of granitic rocks was performed by the use of an imaging plate, which is a storage film coated with photostimulated phosphor (BaFBr:Eu2+). Radiation images of small volume speci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abb2be432ec9ac463a891ec21429401f
https://doi.org/10.2343/geochemj.34.1
https://doi.org/10.2343/geochemj.34.1
Publikováno v:
RADIOISOTOPES. 48:441-449
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a373d9233bcb7fcc53e25730657f5b16
https://doi.org/10.3769/radioisotopes.48.441
https://doi.org/10.3769/radioisotopes.48.441
Autor:
Keizo Ishii, Takuro Sakai, Tomihiro Kamiya, Masahiro Takebe, Isamu Nashiyama, Tsuyoshi Hamano, Toshio Hirao
Publikováno v:
Radiation Physics and Chemistry. 53:461-467
The aiming accuracy of the single-ion-hit method has been studied by the measurement of etch-pit patterns on a CR-39 film irradiated with a heavy-ion microbeam. It becomes clear that the aiming accuracy is determined to be the size of the core-part o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbd6352bafc10dc7ac66574de6382186
https://doi.org/10.1016/s0969-806x(98)00133-9
https://doi.org/10.1016/s0969-806x(98)00133-9
Autor:
Ken Abe, Hiromi Shibata, Hoshio Eguchi, Hisao Kobayashi, Masahiro Etoh, Masahiro Takebe, Masanori Sato
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 135:229-233
A photo-stimulated luminescent (PSL) material, BaFBr 0.85 I 0.15 : Eu 2+ , was irradiated by 1 and 2 MeV He + ions. The radiation effects were compared with that of fission neutrons, 137 Cs and 60 Co gamma-rays. Deterioration of PSL signals was measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35c18c42bdc430fdb4f5ea20306b1a61
https://doi.org/10.1016/s0168-583x(97)00596-x
https://doi.org/10.1016/s0168-583x(97)00596-x
Autor:
Masahiro Takebe, Takuro Sakai, Tomihiro Kamiya, Tsuyoshi Hamano, Tamotsu Suda, Toshio Hirao, Isamu Nashiyama
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 130:280-284
Using heavy-ion microbeam, we have examined the feasibility of a Static Random Memory (SRAM) as an in situ Position Sensitive Detector (PSD) with bit-cell size resolution for extremely low current ion beams. It is found that SRAMs are promising candi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::287351732cf37014bdba562da919c773
https://doi.org/10.1016/s0168-583x(97)00220-6
https://doi.org/10.1016/s0168-583x(97)00220-6
Autor:
Tsuyoshi Hamano, T. Kawanishi, K. Iinuma, Yoshiyuki Satoh, Masahiro Takebe, T. Ohtomo, T. Takahashi
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 142:151-162
A drift-velocity filter to separate a mixture of ions into two groups according to their mobilities is developed and put to the test at pressures near 0.2 Torr. The filter is composed of eight parallel gold foils, alternate foils of which are connect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08491fba1c436831128e1d4c286318af
https://doi.org/10.1016/0168-1176(95)04142-8
https://doi.org/10.1016/0168-1176(95)04142-8