JPS5862600A - X-ray fluorescent intensifying screen having antistatic layer - Google Patents
X-ray fluorescent intensifying screen having antistatic layerInfo
- Publication number
- JPS5862600A JPS5862600A JP16129581A JP16129581A JPS5862600A JP S5862600 A JPS5862600 A JP S5862600A JP 16129581 A JP16129581 A JP 16129581A JP 16129581 A JP16129581 A JP 16129581A JP S5862600 A JPS5862600 A JP S5862600A
- Authority
- JP
- Japan
- Prior art keywords
- intensifying screen
- film
- oxide
- fine particles
- phosphor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は帯電防止処理を施したX@曽先光増感紙関する
ものである□。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an X@so-front photosensitizing screen that has been subjected to antistatic treatment.
X線、r線環放射−による写真撮影においては、少ない
線量の放射線で充分な繰度の写真1祷るため、写真フィ
ルムに放射線増感紙(以下「増感紙」と記す)會密着さ
せて撮影することが普通性なわれている。例えけ、Xl
l1l′Ii真撮影の揚台には、内面に写真乳剤′gr
塗布したX線写真フィルムの両側に、螢光体音塗布した
シート状の増感紙管そnぞれ密着させ、フィルムtこれ
らコ枚の増悪紙間に挾持した状lで撮影するのが普通で
ある。こnによってX@會フィルム表山で可視光に変換
せしめ、X線写真フィルムの黒化能力′にコO−コOO
倍に高め、少ない曝射量でStの高いxis真を得て□
いる。When taking photographs using X-rays and r-ray ring radiation, a radiation intensifying screen (hereinafter referred to as "intensifying screen") is placed in close contact with the photographic film in order to take enough photos with a small dose of radiation. It has become commonplace to take pictures with For example, Xl
l1l'Ii The lifting platform for true photography has a photographic emulsion 'gr' on the inside.
Usually, a sheet-like intensifying screen tube coated with fluorophore is brought into close contact with both sides of the coated X-ray photographic film, and the film is sandwiched between these two sheets of intensifying paper. It is. This allows the X@kai film to be converted into visible light at the front, increasing the blackening ability of the X-ray photographic film.
Double the amount of radiation and obtain a high xis value of St with a small amount of exposure □
There is.
この増感紙B、o、−一0.1man厚の上質の樹脂加
工紙もしくはポリエステル−脂シート、ポ□リスチレン
機脂シート等の樹脂シートからなる支持体の上に螢光体
1m1r設けたもの、あるいはこの上にさらに耐久性を
高めるために10s厚程度の透明な保1[IJlllt
−設けたものが通常便用される。This intensifying screen B, o, -1 ml of phosphor is provided on a support made of a resin sheet such as -0.1 man thick high-quality resin-treated paper, polyester-fat sheet, polystyrene resin sheet, etc. , or on top of this, in order to further increase durability, a transparent protective film with a thickness of about 10 seconds [IJlllt
- The one provided is usually used conveniently.
螢光体層K11l、自己付活タングステン酸カルシウム
螢光体(CaWO4) 、銀付活硫化亜鉛螢光体(Zn
8:At)、鉛付活硫酸バリウム螢光体 ・(Ba80
4:PbJ1稀土類付活稀土類WR′51/r化物螢光
体(例えばGdj、028:i”bJ、稀土−付活稀土
IIkWRハロゲン化物螢光体(例えばLa0Br:T
b)等の螢光体をニトロセルロース、ポリメタアクリル
樹脂勢の^分子物質yzfインダーに均一に分散させて
、均−Kll布したものが使用さ扛る。また保@M1に
は酢識セルロース、ポリメチルメタアクリレートフィル
ム等が使用される。Phosphor layer K11l, self-activated calcium tungstate phosphor (CaWO4), silver activated zinc sulfide phosphor (Zn
8:At), lead-activated barium sulfate phosphor (Ba80
4:PbJ1 rare earth-activated rare earth WR'51/r compound phosphor (e.g. Gdj, 028:i''bJ, rare earth-activated rare earth IIkWR halide phosphor (e.g. La0Br:T
A phosphor such as b) is uniformly dispersed in a molecular substance YZF inder such as nitrocellulose or polymethacrylic resin, and a uniform cloth is used. In addition, vinegar cellulose, polymethyl methacrylate film, etc. are used for the protective film @M1.
放射線撮影會行なう際には、前述のように上記のような
増Il&iをフィルムに密着させるが、こnには通常カ
セツテと称して放射線写真フィルムをコ枚の増悪紙で挾
持した状態で保持する枠が使用される。放射線写真の画
質、特に鮮鋭&を^くする九めに、このカセツテには、
増感紙をフィルムに密着させる上着手段が設けら扛てい
る。したがって、撮影後現像処理のために、カセツテか
らフィルム11reシ出す際、しはしけ増感紙11面お
よびフィルム表面に静電気が発生し、放電現象奮起こす
。云うまでもなく、この放電現象は、現gI後のフィル
ムに写真熱化となって現わ扛、放射a4真の画質1著し
く低下させるら (以下「スタチックマーク」と記す]
。When carrying out a radiography session, as mentioned above, the above-mentioned film is brought into close contact with the film, but this is usually done by holding the radiographic film in a state called a cassette, which is held between two pieces of film. A frame is used. In order to improve the image quality of radiographs, especially sharpness, this cassette has the following features:
A covering means is provided for bringing the intensifying screen into close contact with the film. Therefore, when the film 11re is taken out from the cassette for development processing after photography, static electricity is generated on the surface of the intensifying screen 11 and the film, causing a discharge phenomenon. Needless to say, this discharge phenomenon appears in the form of photographic thermalization on the film after it has been processed, significantly reducing the true image quality (hereinafter referred to as ``static marks'').
.
特に、増感紙の支持体としてポリエステル、ポリスチレ
ン等のプラスチックシートte用した場合は静電気が発
生しやすく、スタチックマークが起こシやすい、1次、
特にフィルム會カセツテにikI*、増出しtする暗室
の!lI増のように、湿度の低い場合は、この現象が起
こシや1−い。In particular, when a plastic sheet such as polyester or polystyrene is used as a support for an intensifying screen, static electricity is likely to be generated, and static marks are likely to occur.
Especially in the darkroom where the number of film cassettes increases! This phenomenon is unlikely to occur when the humidity is low, such as when the temperature increases.
本発#4は、このような放射IIM与真撮彰における帯
電現象による間−に対処し、スタチックマークの発生【
大幅に低減せしめる増感紙に提供することを目的とする
ものである。This development #4 deals with the gap caused by the charging phenomenon in radiation IIM Yoma photography, and eliminates the occurrence of static marks [
The purpose is to provide an intensifying screen that can significantly reduce the
本発明の上記の目的はZn%Ti、Sn%84゜Mo、
Wの中から選ばれる少くとも、/種以上の結晶性金属酸
化物及び/又は、千扛らの複合酸化物を主体とする導電
性微粒子ケバインダー中に分散し、増感紙の少なくとも
一層中に含有させることによシ違取さnた。The above objects of the present invention are Zn%Ti, Sn%84゜Mo,
Conductive fine particles selected from W are dispersed in a binder containing at least one or more crystalline metal oxides and/or a complex oxide of Chiban et al., and are dispersed in at least one layer of an intensifying screen. It was illegal to include it in the product.
結晶性の金属酸化物及び/X線、複合酸化物の微粒子を
用いることにより低湿でも導電性があることがわかった
。□・
特公昭3J−−44/6号には、酸化第二mV帯電防止
処理剤として用いる技術について記載されているが、か
かる技術は無雑形の酸化第二錫コロイド1用いるもので
あシ、その導電性は湿度依存性があシ、低湿度下では導
電層の機能を十分果さない。It has been found that conductivity can be achieved even at low humidity by using fine particles of crystalline metal oxides, X-rays, and composite oxides. □・Japanese Patent Publication No. 3J-44/6 describes a technology to be used as a mV oxide antistatic treatment agent, but this technology uses pure tin oxide colloid 1. However, its conductivity is highly dependent on humidity, and it does not function well as a conductive layer under low humidity.
本発明に使用さ扛る結晶性の金14酸化物又は、その複
合酸化物の微粒子は、その体積比抵抗がlO7Ω−1以
下、より好”ff1L<は、lOΩ−α以下である。The fine particles of crystalline gold-14 oxide or composite oxide thereof used in the present invention have a volume resistivity of 1O7Ω-1 or less, more preferably 1O7Ω-1 or less, and more preferably 1OΩ-α or less.
本発明における結晶性金属酸化物粒子の粒子サイズはO
,O7〜z、oμ、好1シ2〈は0.0コ〜J、0μの
粒子である。The particle size of the crystalline metal oxide particles in the present invention is O
, O7~z, oμ, 0.0~J, 0μ particles.
本発明に使用する導電性の結晶性の金属鹸化物あるい祉
複合酸化物の微粒子の製造方法については、%願昭zz
−4I744j号明細*rc*mrc記載さ、rtてい
るが、第1に金鵬酸化物微粒子會焼成により炸裂し、導
電性を向上させる異極原子の存在下で熱処理する方法、
第二に焼成に19、金楓酸化物微粒子會製造するときに
導電性を向上させる為の異&原子を共存させる方法、第
3に焼成により金槁微粒子を製造する際に雰囲気中の@
#411i度t′十ばて、#R素欠陥會導入する方法等
がある。Regarding the method for producing fine particles of conductive crystalline metal saponified material or composite oxide used in the present invention, please refer to
-4I744J Specification *rc*mrc described and rt, firstly, a method of heat treatment in the presence of heteropolar atoms that explode by firing the Kinpo oxide fine particles and improve conductivity;
Second is the method of coexistence of different atoms and atoms in order to improve conductivity when producing 19 gold maple oxide fine particles during calcination, and third is the @ in the atmosphere when manufacturing gold maple oxide fine particles by firing.
There is a method of introducing a #R elementary defect group at #411i degree t' tenth point.
真極鳳子會含む例として1ZnOに対してλt11n等
、T10.に対してtuNbl Ta等、8n02に対
しては8b、Nb、ハロゲン元素等が挙けらnる。興a
鳳子の添加量は、0 、0 / 〜J Omol唾の範
囲が好lしいが、0./〜10mol僑であf′L#i
特に好ましい。Examples including Shinkyoku Houshikai include λt11n, etc. for 1ZnO, T10. For 8n02, 8b, Nb, halogen elements, etc. can be cited. Interest a
The amount of Fengzi to be added is preferably in the range of 0,0/-J Omol saliva, but 0. / ~ 10 mol overseas f'L#i
Particularly preferred.
導電性微粒子としては、7種類の金属酸化物でも、又、
コ種類以上でもよい。11次、金鵬複酋酸化物単独でも
よく、金属酸化物と他の複合酸化物と1併用しても良い
。As conductive fine particles, seven types of metal oxides,
It may be more than 1 type. The 11th order Kinpeng complex oxide may be used alone, or may be used in combination with a metal oxide and another complex oxide.
導電性微粒子紮バインダー中に分散して、X線螢光増悪
紙のいずnか一層に設けnばよい。The conductive fine particles may be dispersed in a binder and provided in any layer of the X-ray fluorescence enhancing paper.
バインダーとしては、酢酸セルロース、ポリメチルメタ
アクリレート等が使用さ扛る。As the binder, cellulose acetate, polymethyl methacrylate, etc. are used.
導電性微粒子とバインダーの比は、体積比で、II//
η・ら//jが好ましく、更に好1しくはj//、l/
2である。しかしこの範囲は、バインダーの1!Ili
類、紐取、導電性微粒子のサイズによって異なってくる
のはもちろんのことである。The ratio of conductive fine particles to binder is a volume ratio of II//
η・ra//j is preferable, more preferably j//, l/
It is 2. However, this range is one of the binders! Ili
Of course, it varies depending on the type, string, and size of the conductive fine particles.
本発明に於て、導電性微粒子會含1する層は、螢光体層
そのものでもよく、支持体と螢光体層の間、螢光体層と
保一層の間でもよく、父は*向保MIP#h中に導電性
微粒子i含壱せしめてもよい。In the present invention, the layer containing the conductive fine particles may be the phosphor layer itself, between the support and the phosphor layer, or between the phosphor layer and the adhesive layer. Conductive fine particles i may be included in the protective MIP #h.
導電性微粒子の#!准蓋はl千カメ−トル当りo、oz
〜10.Of、好1しく扛o、i〜j。# of conductive particles! The standard lid is o, oz per 1,000 km.
~10. Of, preferably 扛o, i~j.
orである。It is or.
実施例 L
塩化第二スズ水和物411量部と三塩化アンチ%7/
、 jlkilNrz夕z−ルi o o o111H
3Hc溶解し均−溶at得た。このf#液に/N水酸化
ナトリウム水溶液奮劫記溶液のpHが3になる1で、鳩
下してコロイド状酸化第二スズと酸化アンチモンの共沈
澱を得た。得られた共沈厳fjO@Cにコグ時間放置し
赤褐色のコロイド状tt#會得え。Example L 411 parts of stannic chloride hydrate and 7% anti-trichloride
, jlkilNrz eveningz-rui o o o111H
3Hc was dissolved to obtain a homogeneous solution. This f# solution was mixed with a /N sodium hydroxide aqueous solution at a pH of 3 to obtain a coprecipitate of colloidal stannic oxide and antimony oxide. The resulting co-precipitation fjO@C was allowed to stand for a period of time to form a reddish brown colloid.
赤褐色コロイド状沈澱會遠心分離により分離し友。過剰
なイオンを除くため沈澱に水會加え遠心分離によって水
洗した。この操作をJ[gJ繰り返し過剰イオンを除去
した。The reddish-brown colloidal precipitate was separated by centrifugation. To remove excess ions, the precipitate was washed with water by adding water and centrifuging. This operation was repeated J[gJ to remove excess ions.
過剰イオンを除去したコロイド状沈緻100m菫部を水
yo 0srrsKN分散し、600oCに加熱された
焼成炉に噴霧し、青味がかった平均粒径0.2声の微粉
末1得た。The colloidal precipitated 100m violet from which excess ions had been removed was dispersed in water and sprayed into a calcining furnace heated to 600oC to obtain a bluish fine powder 1 with an average particle size of 0.2 degrees.
この混合物lft円径/ 、43の絶縁性シリンダーに
入n1上下よシ、ステンレス電極で7000 % /
ox”の圧力で加圧しながら、粉末の体積比抵抗【m4
足したらlΩ−譚であった。This mixture was put into an insulating cylinder with a diameter of 43 mm and a diameter of 7000% with stainless steel electrodes.
While applying pressure at a pressure of
When I added it up, it was lΩ-tan.
上記粉末會11!相し、次の組成の赦をホール建ルで分
散した。Above powder meeting 11! At the same time, the following composition was distributed in the hall building.
上記粉末 izo部(111)ポリウレ
タン樹脂バイ
ンダー 30部
メチルエチルケトン ≠jOs
トルエン 220部
上記分散11[會0.コjmm厚のポリエチレンテレフ
タレートシートの片面に、乾燥後0.0 /mm厚にな
るように、塗布し、溶剤を乾燥させた。Above powder Izo part (111) Polyurethane resin binder 30 parts Methyl ethyl ketone ≠jOs Toluene 220 parts Above dispersion 11 [Me 0. The solvent was applied onto one side of a polyethylene terephthalate sheet having a thickness of 0.5 mm to a thickness of 0.0 mm after drying, and the solvent was dried.
次に、このようにして−散さn次金栖酸化物層の上に、
硝化綿機脂會酢酸ブチル、酢酸エチル、アセトンのa酋
溶剤に溶解した結台剤掬脂中に該結合剤樹脂lに対して
lの割合でテルビウムで付活したガドリニウムオキシサ
ルファイド螢光体を混合分散せしめたもの會、乾燥it
/ 00 wq / cIR”になるようにロールコー
タ−で塗布し、乾燥した。Then, on top of the n-th Kanasu oxide layer dispersed in this way,
Gadolinium oxysulfide phosphor activated with terbium is added to a binder paste dissolved in a solvent of butyl acetate, ethyl acetate, and acetone in a ratio of 1 to 1 of the binder resin. Mixing and dispersion, drying
/ 00 wq / cIR'' using a roll coater and dried.
さらに、このようにして形成さ扛た螢光体層の上に、酢
酸セルロースtアセトンに溶解し、乾燥vk10μ犀に
なるように塗布し、乾燥した。Further, on the thus formed phosphor layer, cellulose acetate was dissolved in acetone, applied to a dry volume of 10 μm, and dried.
このようにして作成した本発明による増感紙會金属酸化
物層【設けない従来の増感紙と比較してスタチックマー
ク発生試験【行なった結果【下表に示す。The intensifying screen according to the present invention thus prepared was subjected to a static mark generation test (results shown in the table below) in comparison with a conventional intensifying screen without the metal oxide layer.
尚、スタチックマーク発生試験は、増感紙の由に未露光
xレイフィルム1挾み、ゴムローラーテこすり、次いで
、このレントゲンフィルムを増感紙より、敬り出し現像
後、スタチックマークの発生を調べた。In the static mark generation test, one unexposed x-ray film is placed through an intensifying screen, rubbed with a rubber roller, the X-ray film is removed from the intensifying screen, and after development, static marks are removed. We investigated the occurrence.
(#1犀:Jj’C,2j%RH)
上表のように、得らnた螢光増感紙は、すぐれfe11
電防止電防水性た。(#1 rhinoceros: Jj'C, 2j%RH) As shown in the table above, the obtained fluorescent intensifying screen has an excellent fe11
Anti-static and waterproof.
実11aHz
実施例りの粉末 izo部(1量J酢酸セルロ
ース 21部
アセトン 1ooo部
前配分散’fi1ks o 、コj m m厚のポリエ
チレンテレフタレートシートの片面に螢光体J!Ir爽
施例1とrMJ41[設けた上に、乾燥後0.00Jr
nm犀になるように塗布し、溶剤全乾燥させた。Example 1 11aHz Powder of Example Izo part (1 quantity J Cellulose acetate 21 parts Acetone 100 parts Pre-dispersion 'fi1ks o, Coj m m Thickness of polyethylene terephthalate sheet on one side of phosphor J! Ir refreshing Example 1 and rMJ41 [on top of that, 0.00Jr after drying
The solution was applied to a thickness of nm thick, and the solvent was completely dried.
このようにして得られた増感紙′qr実施IFIILと
同様の試験と表面抵抗II k 1111足した。The intensifying screen thus obtained was tested in the same way as the IFIIL test and the surface resistance II k 1111 was added.
(IIR: Jj ’CS J jsR)J )上表
の如く、得らrtた螢光増II&鼻は、すぐnた帯電防
止性を示した。(IIR: Jj 'CS J jsR) J) As shown in the above table, the obtained RT Fluorescence II & Nose exhibited excellent antistatic properties.
特許出願人 富士与Xフィルム株式会社昭和57年
711/Jll
特許庁長官 島 1)春 樹−殿 !:・21、
事件の表示 昭和jA年特願第14/2り5号2
、発明の名称 帯電防止層を有するX線螢光増感紙
3、補正を1−るR
事件との関係 特許出願人住 所 神奈
川県南足柄市中沼21O番地表 補正指令書の日付
昭和j1年1月参日& 補正の対象 明細書
収 補正の内容
@虐書の浄書(内容に変更なし)を提出歇します。Patent applicant Fujiyo X Film Co., Ltd. 1981
711/Jll Commissioner of the Japan Patent Office Shima 1) Haruki-dono! :・21,
Display of incident Showa JA year patent application No. 14/2-5 No. 2
, Title of the invention X-ray fluorescent intensifying screen 3 with antistatic layer, amendment 1-R Relationship to the case Address of patent applicant 210 Nakanuma, Minamiashigara City, Kanagawa Prefecture Date of amendment order
Date of arrival in January 1939 & Subject of amendment Details of amendment @ Engraving of the written copy (no change in content) will be submitted.
□・1□・1
Claims (1)
れる少なくとも/sの金属の酸化物及び/又はこ扛らの
金属の酸化物よ多構成さnた少なくともlslの金輌複
合酸化物を主体どする導電性□微粒子音含有する層會有
することを%黴とするX線螢光増感紙。An oxide of at least a metal selected from Zn, Ti, an, In, 8i1Mo%W and/or a composite oxide of at least lSl of metals composed of oxides of these metals. An X-ray fluorescent intensifying screen that is mainly conductive and has a layer containing particulate sound.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16129581A JPS5862600A (en) | 1981-10-09 | 1981-10-09 | X-ray fluorescent intensifying screen having antistatic layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16129581A JPS5862600A (en) | 1981-10-09 | 1981-10-09 | X-ray fluorescent intensifying screen having antistatic layer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5862600A true JPS5862600A (en) | 1983-04-14 |
JPH0327880B2 JPH0327880B2 (en) | 1991-04-17 |
Family
ID=15732387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16129581A Granted JPS5862600A (en) | 1981-10-09 | 1981-10-09 | X-ray fluorescent intensifying screen having antistatic layer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5862600A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62174700A (en) * | 1985-10-14 | 1987-07-31 | 富士写真フイルム株式会社 | Radiation image conversion panel |
JPS62195600A (en) * | 1986-02-24 | 1987-08-28 | 富士写真フイルム株式会社 | Radiation image conversion panel |
US8129115B2 (en) | 2006-06-06 | 2012-03-06 | Panasonic Corporation | Method of modifying nucleotide chain |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5512927A (en) * | 1978-07-12 | 1980-01-29 | Matsushita Electric Ind Co Ltd | Electrostatic recorder |
JPS5580484A (en) * | 1978-12-11 | 1980-06-17 | Nec Corp | Luminous material |
-
1981
- 1981-10-09 JP JP16129581A patent/JPS5862600A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5512927A (en) * | 1978-07-12 | 1980-01-29 | Matsushita Electric Ind Co Ltd | Electrostatic recorder |
JPS5580484A (en) * | 1978-12-11 | 1980-06-17 | Nec Corp | Luminous material |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62174700A (en) * | 1985-10-14 | 1987-07-31 | 富士写真フイルム株式会社 | Radiation image conversion panel |
JPS62195600A (en) * | 1986-02-24 | 1987-08-28 | 富士写真フイルム株式会社 | Radiation image conversion panel |
US8129115B2 (en) | 2006-06-06 | 2012-03-06 | Panasonic Corporation | Method of modifying nucleotide chain |
Also Published As
Publication number | Publication date |
---|---|
JPH0327880B2 (en) | 1991-04-17 |
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