摘要:
The object of the present invention is to provide a glass composition which has a sufficient bonding strength for bonding a fluorescent film with a glass tube, does not hinder decomposition of the binder and is effective as an adhesive material and to provide a fluorescent lamp using the glass composition. The object can be achieved by a glass composition, represented by the general formula, xMO . yB2O3 . zM'2O3 . uM''O2 . vM'''2O5 in which M is at least one element of Mg, Ca, Sr, Ba and Zn, M' is at least one element of Al, Sc, Y and lanthanoid elements, M'' is at least one element of Ti, Zr, Hf, Th and Si, M''' is at least one element of Nb and Ta, x, y, z, u and v satisfy the relationships of 0
摘要:
When each of a rare earth oxysulfide phosphor represented by the composition formula ( ) of Ln 2 O 2 S : xRe, yM wherein Ln represents at least one rare earth element selected from Y, La and Gd; Re represents at least one rare earth element selected from Pr and Tb; M represents at least one element selected from Nb, Ta and Mn; and x and y are numbers which satisfy the conditions of 1 × 10 -4 ≦ x ≦ 0.2 and 0.01ppm ≦ y ≦ 1000ppm, respectively, and a rare earth oxysulfide phosphor represented by the composition formula ( ) of (Gd 1-x-y-z ,Pr x ,Sc y ,Ce z ) 2 O 2 S wherein x, y and z are numbers which satisfy the conditions of 10 -4 ≦ x ≦ 2 × 10 -1 , 10 -4 ≦ y ≦ 10 -1 and 0 ≦ z ≦ 10 -6 , respectively is excited by radiation, each of them emits a scintillation at high efficiency, and decreases the afterglow. Each of the phosphors is used for an X-ray detector as a scintillator, and is useful for an X-ray CT apparatus.
摘要翻译:当由Ln 2 O 2 S的组成式(@)表示的稀土氧硫化物荧光体:xRe,yM,其中Ln表示选自Y,La和Gd中的至少一种稀土元素; Re表示选自Pr和Tb中的至少一种稀土元素; M表示选自Nb,Ta和Mn中的至少一种元素; 并且x和y分别为满足1×10 -4 = x 0.2和0.01ppm≤y<1000ppm的条件的数字,以及由组合物表示的稀土氧硫化物荧光体 (Gd 1-xyz,Prx,Scy,Cez)2 O 2 S的式(@)其中x,y和z是满足条件为10 -4 = 2×10 -1 分别通过辐射激发,其中每一个以高效率发射闪烁,并且, 减少余辉。 每个荧光体用作X射线检测器作为闪烁体,并且可用于X射线CT装置。
摘要:
An aluminate phosphor comprising (a) at least one element selected from the group consisting of Ba, Sr and Ca, (b) Eu, (c) Mg and/or Zn, (d) optionally Mn and (e) Aℓ, said aluminate phosphor comprising a crystalline inorganic compound which shows, in its powder X-ray diffraction pattern upon incidence of X-rays of CuKα₁, no peak at Miller index 008 independent of a diffraction peak at Miller index 110.
摘要:
A fluorescent lamp having a non-fluorescent substance layer and a phosphor layer laminated and coated on, or having a fluorescent composition composed of a mixture of a non-fluorescent substance and a phosphor, coated on the inner wall of a glass bulb, wherein the non-fluorescent substance is an oxide containing at least one rare earth element selected from the group consisting of yttrium, gadolinium and lanthanum.
摘要:
A color cathode-ray tube having a fluorescent screen comprising red-, blue- and green-emitting phosphors as image elements of a fluorescent layer, wherein at least one of said phosphors is coated with a double oxide of zinc and aluminum.
摘要:
A fluorescent composition for low velocity electron beam excitation, comprising a phosphor containing a sulfide of the formula (Zn 1-x ,Cd x )S wherein x is a number satisfying a condition of 0 ≦ x ≦ 1, as the host material, and an electrically conductive material mixed or mutually adhered to each other, wherein the half value width (2ϑ) of the strongest diffraction line in the diffraction X-ray spectrum of said sulfide is within a range of from 0.05° to 0.16°.
摘要:
A color cathode-ray tube having a fluorescent screen comprising red-, blue- and green-emitting phosphors as image elements of a fluorescent layer, wherein at least one of said phosphors is coated with a double oxide of zinc and aluminum.