Microwave cavity studies of ionization decay in caesium vapour

Harris, Justin; Balfour, D

doi:10.1088/0022-3727/1/4/302

Cited by 7 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The quantitative analysis of atomic concentration was performed using the differential Auger spectra by the ordinary 'peak-to-peak' method [18]. Relative sensitivity factors of 0.140, 0.230, 0.400, 0.750, and, 1.050 for carbon, nitrogen, oxygen, sulfur and chlorine, respectively, were used in this study [19].…”

Section: Oxidation Of Carbon Fibers By Atomic Oxygen Irradiationmentioning

confidence: 99%

Local deviation in contact angles on heterogeneous fibrous solids

Tagawa

Yasukawa

Gotoh

et al. 1992

Journal of Adhesion Science and Technology

View full text Add to dashboard Cite

Wetting force measurements in solid/water/n-alkane systems were carried out using carbon fibers, boron fiber, fibrous quartz, and polymeric fibers by the Wilhelmy technique. Contact angles of water were independent of the velocity of the moving three-phase boundary on repyrolyzed PAN-based carbon fibers which did not show any contact angle hysteresis. Hysteresis in contact angles due to surface heterogeneity began to appear after irradiation with atomic oxygen which oxidized the carbon fibers. On atomic oxygen exposed carbon fibers, advancing contact angles increased and receding ones decreased with increasing velocity, and there was a region where both angles were constant. The range of deviations in contact angles due to surface heterogeneity was determined from local deviations in weight traces at the velocity of three-phase boundary of 0.3 mm min-1 where both angles were independent of the velocity. Deviations in contact angles, ∆θ, were larger in advancing than in receding for hydrophilic solids (e.g. quartz), and were smaller for hydrophobic solids (e.g. polyethylene).

show abstract

Section: Oxidation Of Carbon Fibers By Atomic Oxygen Irradiationmentioning

confidence: 99%

Local deviation in contact angles on heterogeneous fibrous solids

Tagawa

Yasukawa

Gotoh

et al. 1992

Journal of Adhesion Science and Technology

View full text Add to dashboard Cite

show abstract

“…Cu segregation to the surface on Ni-Cu alloy with annealing is well known. [4] It has been investigated by Auger electron spectroscopy (AES), [4,5] X-ray photoelectron spectroscopy (XPS), [4,6] atom probe, [7] and so on under ultra-high-vacuum conditions. It is considered that the corrosion resistance against the metal dusting was improved because of Cu segregation on the Ni-based alloy in the metal dusting environments.…”

Section: Introductionmentioning

confidence: 99%

Investigation of segregation during oxidation of Ni–Cu alloy by in situ photoelectron spectroscopy

Doi

Nishiyama

Yoshigoe

et al. 2016

Surface & Interface Analysis

View full text Add to dashboard Cite

Ni‐based alloys has been widely used for plant application because of their high strength and excellent oxidation resistance. In particularl, the addition of Cu in Ni‐based alloys significantly improves the metal dusting resistance. It is indicated that Cu is segregated on the alloy surface in the metal dusting environment; however, the details have not been clarified yet. The behavior of Ni–2Cu alloy under a high temperature oxidation environment was investigated using in situ X‐ray photoelectron spectroscopy. It was confirmed that Cu have been segregated at the surface of Ni–2Cu alloy during oxidation. These results propose that the Cu segregation improves the metal dusting resistance. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

“…Several authors have realized such differences in the electric field distribution and have carried out experimental studies of the electric field distribution for a cylindrical TMolo microwave cavity with one end hole (Shaw et al 1965), a cylindrical TMozo microwave cavity with two end holes (Harris and Balfour 1968) and a toroidal cavity (Sicha et al 1967). No such experimental study has been performed for the case where the radius of a cylindrical TMolo microwave cavity is comparable with the radius of the end holes and the thickness of the glass tube.…”

Section: Introductionmentioning

confidence: 99%

Electric field distribution in a cylindrical TM010 microwave cavity with end holes and a glass tube

Pipisková¹

1970

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

A perturbation method is used for the experimental study of the effects of end holes and a glass tube on the electric field configuration in a cylindrical TM010 microwave cavity at a wavelength of 3 cm. The radius of the cavity, the radius of the end holes in each end plate and the thickness of the glass tube are comparable. The results show that the electric field intensity and configuration in the plane of the end holes (i.e. in the interacting space of a plasma with the cavity) are highly perturbed. The effect of the glass tube is to make the electric field in the radial direction more homogeneous, and to increase the interacting space in an axial direction. The value of the square of the electric field intensity E2 at the centre of the cavity without the glass tube is nearly twice as large as the value found with the glass tube. The measured values of E2 are used to calculate the error due to the glass tube in the electron density measurement. The error is found to be 29%.

show abstract

Microwave cavity studies of ionization decay in caesium vapour

Cited by 7 publications

References 14 publications

Local deviation in contact angles on heterogeneous fibrous solids

Local deviation in contact angles on heterogeneous fibrous solids

Investigation of segregation during oxidation of Ni–Cu alloy by in situ photoelectron spectroscopy

Electric field distribution in a cylindrical TM010 microwave cavity with end holes and a glass tube

Contact Info

Product

Resources

About