Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Hitoshi Akimichi"'
Autor:
Hitoshi Akimichi
Publikováno v:
Journal of the Vacuum Society of Japan. 56:220-226
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75ac55d3e9da8b99957671873a0ddf28
https://doi.org/10.3131/jvsj2.56.220
https://doi.org/10.3131/jvsj2.56.220
Publikováno v:
Measurement. 45:2452-2455
A new leak element, which is named as “standard conductance element (SCE)”, has been developed for in situ calibration of ionization gauges (IGs) and quadrupole mass spectrometers (QMSs). The SCE is made of a stainless-steel sintered filter with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf794bd8496cd3ed537d934439336d81
https://doi.org/10.1016/j.measurement.2011.10.044
https://doi.org/10.1016/j.measurement.2011.10.044
Publikováno v:
Measurement. 45:2441-2444
At the calibration of standard leaks by a comparison method with reference standard leaks, important factors to evaluate the flow rates are the degrees of stability of a mass spectrometer leak detector (MSLD) and standard leaks. Stability of two leak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fd0d3d2c3f388e92e14cf63d8300c2c
https://doi.org/10.1016/j.measurement.2011.10.042
https://doi.org/10.1016/j.measurement.2011.10.042
Publikováno v:
Vacuum. 86:838-842
A new leak element using a sintered stainless steel filter with a pore size of less than 1 μm has been developed for in-situ calibrations of ionization gauges (IGs) and quadruple mass spectrometers (QMSs). The gas flow through this leak element real
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fbf6b5bc637d751b38b20487c0288bb
https://doi.org/10.1016/j.vacuum.2011.02.013
https://doi.org/10.1016/j.vacuum.2011.02.013
Publikováno v:
Journal of the Vacuum Society of Japan. 55:226-232
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93be87d953400c991eb46b2cf5654324
https://doi.org/10.3131/jvsj2.55.226
https://doi.org/10.3131/jvsj2.55.226
Publikováno v:
Vacuum. 86:226-231
A new two-stage flow-dividing system has been developed for the calibration of ultrahigh vacuum gauges from 10−9 Pa to 10−5 Pa for N2, Ar, and H2. This system is designed based on the techniques for our previously developed calibration system in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31b6f8e8278e5ed74b91215c35012fc7
https://doi.org/10.1016/j.vacuum.2011.06.012
https://doi.org/10.1016/j.vacuum.2011.06.012
Publikováno v:
Journal of the Vacuum Society of Japan. 54:298-306
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2afb4812eaf2918e0bc8373a9e5b7c6
https://doi.org/10.3131/jvsj2.54.298
https://doi.org/10.3131/jvsj2.54.298
Publikováno v:
Vacuum. 85:78-83
Stability tests of two quadrupole mass spectrometers (QMSs) were performed using a two-stage flow-dividing system from the following viewpoints: (1) fluctuation and drift of ion current, (2) repeatability of ion current, (3) change in ion current owi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::954e96640adafd560396fbf3d37eac80
https://doi.org/10.1016/j.vacuum.2010.04.005
https://doi.org/10.1016/j.vacuum.2010.04.005
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 28:937-941
The effect of surface material and roughness on the conductance of a channel at molecular flow was measured for N2, Ar, He, and H2. The experimental results were compared with the results of Monte Carlo calculations. The channel consisted of two para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7056cf3cd1304f6bb2e4255fde9b1f67
https://doi.org/10.1116/1.3306024
https://doi.org/10.1116/1.3306024
Publikováno v:
Journal of the Vacuum Society of Japan. 53:614-620
A constant pressure type flowmeter was developed to generate precise gas flow for calibrations of vacuum gauges by an orifice flow method and standard leaks by a comparison method. The flow rate is derived from the constant pressure and the volume re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af3835bd233a5444cba84147641ee299
https://doi.org/10.3131/jvsj2.53.614
https://doi.org/10.3131/jvsj2.53.614