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Three-dimensional site dependence of single-ion-induced charge collection at a p-n junction—role of funneling and diffusion processes under different ion energy (1998)

Matsukawa, T. ; Mori, S. ; Tanii, T. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 83 (1998), S. 3413-3418

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: The amount of charges induced by high energy single ion irradiation at a p-n junction diode has been measured and its dependence on the ion incident position has been evaluated by using single-ion microprobe technique. By irradiating single He ions with various incident energy (1.4–4.05 MeV), dependence of the profiles of collected charges on the ion incident energy has been investigated. Origins of the different profiles among the different incident energy are discussed in terms of different contribution of two mechanisms of charge collection, namely, field funneling and diffusion of carriers. In the case of the ion incidence within the junction area, dependence of the charge collection profile on the ion incident energy comes from different contribution of the funneling in the charge collection process, while difference in the collection efficiency of the diffused charges affects the profile in the case of the ion incidence at outside of the junction. © 1998 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.367138

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Physiological levels of C-reactive protein in normal canine sera (1998)

Otabe, K. ; Sugimoto, T. ; Jinbo, T. ; [et al.]

Springer

Veterinary research communications 22 (1998), S. 77-85

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ISSN: 1573-7446

Keywords: C-reactive protein ; circadian rhythm ; dog ; ELISA ; physiological variation ; serum

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract This study was undertaken to investigate whether the level of C-reactive protein (CRP) in the serum of dogs undergoes physiological variation, using 10 normal Beagle dogs (5 males and 5 females), 1–2 years old, maintained in a healthy condition in a controlled environment. The CRP concentration in the sera collected seven times each day at intervals of approximately 3 h ranged from 0.8 to 16.4 µg/ml (mean 5.06±3.60) in one experiment and from 0.8 to 14.0 µg/ml (mean 4.50±2.80) in a second experiment. On examining the 24-h variations in the concentration of CRP in serum, neither consistent changes nor a definite pattern of circadian rhythm was detected. During 28 days observation, only very slight changes, which seemed attributable to analytical errors, were seen in any of the dogs, except one. The concentration of CRP in the serum during the 28 days ranged from 0.8 to 22.6 µg/ml (mean 3.65±1.40). The concentrations underwent no significant variations in individual dogs, but significant differences were found between the dogs (p〈0.01).