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フルテキストURL2007010069.pdf ( 2.0MB ) 公開日 2010-04-16
タイトル実用蛍光ランプ電極の仕事関数の測定
タイトルヨミジツヨウ ケイコウ ランプ デンキョク ノ シゴト カンスウ ノ ソクテイ
タイトル別表記Measurement of work function of practical fluorescent lamp electrodes with emissive oxides
作成者明星, 稔
福政, 修
作成者ヨミミョウジョウ, ミノル
フクマサ, オサム
作成者別表記Myojo, Minoru
Fukumasa, Osamu
作成者所属山口大学大学院理工学研究科(工学)
内容記述(抄録等)In this paper we propose a method for measuring work function of practical fluorescent lamp electrodes with emissive oxides. The work function measurement is based on the matching between the zero-field thermionic emission currents and various dc lamp currents set in a normal glow discharge by means of a lamp voltage monitoring procedure with an electrode-heating device for thermionic emission measurement. Measuring the work function of practical fluorescent lamp electrodes is a promising approach because changes that occur in the work function of aged-lamp electrodes in some lighting systems will be helpful in evaluating the system. The paper points out the doubtful approach of taking a rather small value of the Richardson constant. To solve this issue, a temperature-dependent work function is introduced. In the first stage of the paper, the Richardson constant is taken as the theoretical value. As a result, work function φ[eV] of a fluorescent lamp electrode halfway through its lamp life was measured and given as : φ=0.80+1.36×10^<-3>T (computed from equation with T^2) where T was the electrode temperature [K]. Second, an attempt is made to measure a temperature-dependent work function taking a realistic value of the Richardson constant. The smaller the value of the Richardson constant, the smaller the estimated work function is. Finally, the paper examines how to take a realistic value of the Richardson constant.
本文言語jpn
著者キーワードwork function
fluorescent lamp
emissive oxide
electron emission
electrode
Richardson constant
主題電気電子工学
資料タイプtext
ファイル形式application/pdf
出版者照明学会
出版者ヨミショウメイ ガッカイ
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0019-2341
NCIDAN00268860
掲載誌名照明学会誌
掲載誌名別表記Journal of the Illuminating Engineering Institute of Japan
89
5
開始ページ236
終了ページ244
発行日2005-05
関連情報URL(IsPartOf)http://ci.nii.ac.jp/vol_issue/nels/AN00268860_jp.html
著者版/出版社版出版社版
リポジトリID2007010069
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2007010069