JPS58160952A - Intensifying screen system - Google Patents
Intensifying screen systemInfo
- Publication number
- JPS58160952A JPS58160952A JP4269982A JP4269982A JPS58160952A JP S58160952 A JPS58160952 A JP S58160952A JP 4269982 A JP4269982 A JP 4269982A JP 4269982 A JP4269982 A JP 4269982A JP S58160952 A JPS58160952 A JP S58160952A
- Authority
- JP
- Japan
- Prior art keywords
- intensifying screen
- screen system
- film
- phosphor
- phosphor layer
- 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.)
- Pending
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 14
- 230000035945 sensitivity Effects 0.000 claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 12
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 11
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052709 silver Inorganic materials 0.000 claims abstract description 3
- 239000004332 silver Substances 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910052771 Terbium Inorganic materials 0.000 abstract description 5
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 abstract description 4
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- -1 rare earth oxysulfide Chemical class 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009607 mammography Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 229910052693 Europium Inorganic materials 0.000 description 1
- XPIIDKFHGDPTIY-UHFFFAOYSA-N F.F.F.P Chemical compound F.F.F.P XPIIDKFHGDPTIY-UHFFFAOYSA-N 0.000 description 1
- 229910001477 LaPO4 Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910001618 alkaline earth metal fluoride Inorganic materials 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/16—X-ray, infrared, or ultraviolet ray processes
- G03C5/17—X-ray, infrared, or ultraviolet ray processes using screens to intensify X-ray images
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の技術分野）
本発明は、画質特性を改良した画像を得るＸＩＩ用増感
紙システムに関する。TECHNICAL FIELD OF THE INVENTION The present invention relates to an XII intensifying screen system that provides images with improved image quality characteristics.
（発明の技術的背景及びその問題点）
一般のＸ線用増感紙システムの放射線画像は、第１図に
示すようにフィルムベース１の両面に感光乳剤２を有す
るフィルム３の両面に螢光を発生する螢光体層４を有す
る増感紙５を配置することにより得られる。すなわちＸ
線を吸収した螢光体層は、光を発生しフィルムの感光乳
剤を両面から感光させる。このとき放射１ＩｖｋＪ像は
、螢光体層から発生する一次−ｆｆｉｌＯと、二次元１
１により感光形成されるが二次光はフィルムベースを通
過しかつ反射、屈折した元であり、不鮮明な画質特性を
示す原因になる。そこで画像解析の精度を向上させるた
め、この二次光の影響を防止するシステムが要望されて
いた。(Technical Background of the Invention and Problems Thereof) A radiographic image of a general X-ray intensifying screen system is produced using fluorescent light on both sides of a film 3 having a photosensitive emulsion 2 on both sides of a film base 1, as shown in FIG. This is obtained by arranging an intensifying screen 5 having a phosphor layer 4 that generates . That is, X
The phosphor layer absorbs the radiation and generates light, sensitizing the film's emulsion from both sides. At this time, the radiation 1IvkJ image consists of the first -ffilO generated from the phosphor layer and the two-dimensional 1IvkJ image.
However, the secondary light passes through the film base and is reflected and refracted, which causes blurred image quality characteristics. Therefore, in order to improve the accuracy of image analysis, there has been a need for a system that prevents the influence of this secondary light.
（発明の目的）
したがって、本発明の目的は感度を損ねることなく二次
光の影響を除去した増感紙システムを提供することであ
る。(Object of the Invention) Therefore, an object of the present invention is to provide an intensifying screen system that eliminates the influence of secondary light without impairing sensitivity.
（発明の概要）
従来の複数の増感紙を用いるシステムでは二次光の影響
を避けることができない。そこで発明者は、この二次光
の影響を取り去るフィルムシステムの構成として、複数
の増感紙を用いずに第２因化示すような片面増感紙を用
いるシステムに着目した。そして、増感紙に高感度の希
土類螢光体を用いることにより二次元の影響を受けるこ
とな（かつ従来の両面システムと同等以上の画質特性を
得ることに成功した。(Summary of the Invention) In a conventional system using a plurality of intensifying screens, the influence of secondary light cannot be avoided. Therefore, the inventor focused on a system that uses a single-sided intensifying screen that exhibits the second factor instead of using a plurality of intensifying screens as a structure for a film system that eliminates the influence of this secondary light. By using a highly sensitive rare earth phosphor in the intensifying screen, they were able to avoid two-dimensional effects (and achieve image quality characteristics equivalent to or better than conventional double-sided systems).
なお、従来からマンモグラフイ−（乳房撮影）の用途に
は、片面増感紙によるシステムが、用いられているが、
本発明は従来のこのシステムとは目的が全く異なるもの
である。In addition, a system using a single-sided intensifying screen has traditionally been used for mammography (breast imaging), but
The purpose of the present invention is completely different from this conventional system.
この相違を明らかにするため従来のシステムの特性を第
１表に示す。In order to clarify this difference, the characteristics of the conventional system are shown in Table 1.
相対感＆二両面システム中のＥＭｆｉ使用の場合を１０
０としたときの感度。10 when using EMfi in relative sense & two-sided system
Sensitivity when set to 0.
ＭＴＦ： 鮮鋭度（Ｍｏｄｕｌａｔｉｏｎ ｆｒａｎｚ
ｆｇｒＦ關ｃｔｉｏ％）（２，０本／簡）ＥＭ屋使用の
場合を３００（：したときの比率。MTF: Sharpness (Modulation Franz)
fgrF關cutio%) (2,0 pieces/simplified) The ratio when using an EM shop is 300 (:).
第１表より明らかなように、従来の片面システムは、両
面システムに比較して、感度が著しく低いため、ＭＴＦ
の特性によって使用が可能な特殊用途（マンモグラフィ
ー）にしか用いられなかった。As is clear from Table 1, the conventional single-sided system has significantly lower sensitivity than the double-sided system, so the MTF
Due to its characteristics, it was only used for special purposes (mammography).
本発明は、汎用領域感度（両面システムと同等以上）で
のＭＴＦの改良を主たる目的とする。The main objective of the present invention is to improve MTF in general-purpose area sensitivity (equal to or better than double-sided systems).
本発明の増感紙システムの基本的型様は、フィルムベー
スの片面に感光乳剤を備えてなるフィルムと、前記片面
側に設けられ希土類螢光体層を有してなる増感紙とを具
備してなるものである。The basic type of the intensifying screen system of the present invention includes a film having a photosensitive emulsion on one side of a film base, and an intensifying screen having a rare earth phosphor layer provided on the one side. This is what happens.
適用できる具体的な螢光体としては、テルビウム付活希
土類酸硫化物系螢光体（Ｙ、０゜−８：Ｔｂ、Ｇｄ、
ｏｓ ８：Ｔｂ、Ｌ α、 ０． Ｓ 二 Ｔｂ
。Specific phosphors that can be applied include terbium-activated rare earth oxysulfide phosphors (Y, 0°-8: Tb, Gd,
os 8: Tb, L α, 0. S two Tb
.
（Ｙ、Ｇｄ）ｔＯｔ８：ＴＡ、（Ｙ、Ｇｄ）ｔＯ＊ｓ：
’ｆｂ、’ｆｍ等〕、テルビウム付活希土類リン酸基糸
螢光体（ＹＰＯ−： Ｔ ｈ 、ＧｄＰＯａ ： Ｔ
ｈ 、ＬａＰＯ４：Ｔｂ等）テルビウム付活希土類オキ
シハロゲン化物糸螢光体（ＬａＯＢｒ：Ｔｂ、Ｌａ０Ｂ
ｒ：Ｔｈ、ＴｒＩＩＬ、Ｌａ０Ｏ１：Ｔｂ、Ｌａ００１
：Ｔｂ。(Y, Gd)tOt8:TA, (Y,Gd)tO*s:
'fb, 'fm, etc.], terbium-activated rare earth phosphate-based thread phosphor (YPO-: T h, GdPOa: T
h, LaPO4:Tb, etc.) Terbium-activated rare earth oxyhalide yarn phosphor (LaOBr:Tb, La0B
r: Th, TrIIL, La0O1: Tb, La001
:Tb.
Ｔｍ、Ｇｄ０Ｂｒ：Ｔｂ、Ｇｄ００１：ＴＡ等）、ツリ
ウム付活希土類オキシハロゲン化物糸螢光体（ＬａＯＢ
ｒ：Ｔｍ、Ｌａ００１：Ｔｍ郷）、２価のユーロピウム
付活アルカリ土類金属フッ化ノ１０ゲン化物系螢光体（
ＢａＩｔ’Ｏｌ：Ｂｕ”、ＢａＦＢｒ：Ｅｕ”、ＢａＦ
Ｏｌ：Ｂｕ”、’ｆｂ、ＢａＦＢｒ：ＥＷ”、 Ｔ ｂ
、 Ｂ ａＦｔ ・Ｂ ｍｏｌ ２ ・ＫＯＩ ：
Ｅｕ” 。Tm, Gd0Br:Tb, Gd001:TA, etc.), thulium-activated rare earth oxyhalide yarn phosphor (LaOB
r:Tm, La001:Tm), divalent europium-activated alkaline earth metal fluoride phosphor (
BaIt'Ol:Bu", BaFBr:Eu", BaF
Ol:Bu", 'fb, BaFBr:EW", T b
, B aFt ・B mol 2 ・KOI:
Eu”.
ＢａＦ、−Ｂａ１１．−ｘＢａ８０． ・ＫＯｊ？：Ｅ
ｕ 。BaF, -Ba11. -xBa80.・KOj? :E
u.
（Ｂａ、Ｍ！りＦ、−ＢａＯム−ＫＯＩ ： Ｅ＠Ｌ２
＋ 勢）が挙げられる。このうち、ｌＷ、 Ｏｓ ８：
Ｔｂ（ここでＬ ｎ＝Ｙ 、 Ｇｄ 、 Ｌ ａの少く
とも１種）がよく、なかでも（Ｙ−Ｏｆ）、 Ｕ、 ８
：ＴＡ （４１ＩにＹ：Ｇｄ中ｌ：１）のものは、高感
度で管電圧特性も安定しており好ましい。(Ba, M! RiF, -BaOmu-KOI: E@L2
＋ Force) can be mentioned. Among them, lW, Os 8:
Tb (where L n = at least one of Y, Gd, and La) is preferred, especially (Y-Of), U, 8
:TA (1:1 in 41I and Y:Gd) is preferable because it has high sensitivity and stable tube voltage characteristics.
さらに本発明の実１１ＷＡ様としては次のものがある。Further, examples of the actual 11WA of the present invention include the following.
（１）螢光層は、平均粒径３〜２０μの螢光体で構成さ
れてなるもの。この範囲のものが画質特性に優れる。(1) The phosphor layer is composed of phosphors with an average particle size of 3 to 20 μm. Those within this range have excellent image quality characteristics.
（２）螢光体層は、フィルムに近い面は粒径の大きい螢
光体の粒子が配列しフィルムから遠ざかるにつれて粒径
が小さくなるように２配列してなるもの。(2) The phosphor layer has two phosphor particles arranged in such a way that the phosphor particles have a large particle size on the surface close to the film, and the particle size becomes smaller as they move away from the film.
螢光体粒子をこのように配列することにより、感度、Ｍ
ＴＦが改善される。By arranging the phosphor particles in this way, the sensitivity, M
TF is improved.
（３）螢光体層は、１００〜４００μの厚さを有するも
の。(3) The phosphor layer has a thickness of 100 to 400 microns.
１００μより薄いと感度が不充分となりやすく、また４
００μを越えても躊度向上の効果は上がらず、かえって
ＭＴＦを悪化させることがある。If it is thinner than 100μ, the sensitivity tends to be insufficient, and
Even if it exceeds 00μ, the effect of improving the hesitivity will not increase, and the MTF may deteriorate on the contrary.
（４）螢光体層は、厚さ５〜２０ｐの保護膜で榎われて
なるもの、保鏝膜は、螢光体を保護するが、２０μを越
えるとＭＴＦを劣化させる。(4) The phosphor layer is covered with a protective film having a thickness of 5 to 20 μm. The protective film protects the phosphor, but if it exceeds 20 μm, the MTF deteriorates.
（６） 螢光体層は、不透明物質でなる支持体で支持
されてなるもの。(6) The phosphor layer is supported by a support made of an opaque substance.
（６） 感光乳剤は、波長５００ｆｍ１ｍ〜６００ｒ
ＬＦＩの間に感度のピークを有するものであること。こ
のピークは希土類螢光体の発光スペクトルのピークと合
致する範囲である。(6) The photosensitive emulsion has a wavelength of 500fm1m to 600r.
It should have a sensitivity peak during LFI. This peak is in a range that matches the peak of the emission spectrum of the rare earth phosphor.
（７） 感光乳剤の銀粒子は１０μ以下の粒度を有す
るものであること０粒子が余り大きいと粒状性、ＭＴＦ
を害する＝
（８） フィルムと増感紙は、カーボンを含む樹脂で
形成されたカセツテに収納されてなるもの。(7) The silver grains in the photosensitive emulsion must have a grain size of 10μ or less. If the zero grains are too large, graininess and MTF
(8) The film and intensifying screen are housed in a cassette made of resin containing carbon.
カーボ゛ンを含むカセツテは、Ｘ線吸収が少ないため感
度を損ねることが少ない。A cassette containing carbon has less X-ray absorption, so sensitivity is less likely to be impaired.
（発明の効果）
上記のように構成された本発明のフィルムシステムは高
輝度螢光体、高感度乳剤およびＸ線吸収の少ないカセツ
テ等の相乗効果により高品位の画質特性を有するｔｈ儂
をもたらす。(Effects of the Invention) The film system of the present invention configured as described above provides a film with high quality image quality due to the synergistic effect of the high-brightness phosphor, high-sensitivity emulsion, cassette with low X-ray absorption, etc. .
また従来は得られなかった５ｍ１（以下のＸ＠量（増感
紙−フィルム系に対して）で適正写真＃度を得ることが
できる。Further, it is possible to obtain an appropriate photographic degree with the following X@ amount (for an intensifying screen-film system) of 5 m1, which could not be obtained conventionally.
（実施例）
螢光体としてＯａ Ｗ ｏ 、を用いた増感紙（東芝製
−１ｆ１Ｍｆｉ ）と、レギュラータイプのフィルム（
サクラ製−Ａ型）とを組合せた両面システムを基準とし
て、本発明のシステムを比較した。本発明の片面システ
ムとして螢光体層こ（Ｙｏ、ｉＧ血１１）倉Ｏ寓８：Ｔ
Ａを用い、フィルムとして波長的５５０８１１にピーク
を有する０Ｍ型（シダツク類）を用いた。螢光体の平均
粒径は４．５μ、厚さは約２５０μ、保饅膜は厚さ９μ
のポリエチレンテレフタレートを用い支持体も同材質と
した。なお支持体は黒色のもの及び白色のものを用意し
た。カセツテはカーボンカセツテ（東芝製−０ＦＲＰ屋
）を用いた。管電圧は８５ＫＶＰである。その結果感度
は一面システムを１００とした場合、支持体が白色の場
合は９８％、黒色の場合は１００％とほぼ同等のものが
得られ、ＭＴＦは両面システムを１００とした場合、支
持体が白色の場合は１０５％、黒色の場合は１３０％と
従来システムを上回った。(Example) An intensifying screen (manufactured by Toshiba - 1f1Mfi) using OaWo as a phosphor and a regular type film (
The system of the present invention was compared with a double-sided system in combination with Sakura (Type A). As a single-sided system of the present invention, the phosphor layer is
A was used, and as a film, an 0M type (shidatsu type) having a peak at a wavelength of 550811 was used. The average particle size of the phosphor is 4.5μ, the thickness is about 250μ, and the thickness of the protective film is 9μ.
The support was made of the same material as polyethylene terephthalate. Note that black supports and white supports were prepared. A carbon cassette (manufactured by Toshiba - 0FRP shop) was used as the cassette. The tube voltage is 85KVP. As a result, when the sensitivity is set to 100 for a single-sided system, it is almost equivalent to 98% when the support is white and 100% when the support is black, and when the MTF is set to 100 for the double-sided system, when the support is This was 105% for white and 130% for black, which is higher than the conventional system.
さらに螢光体量を替えて従来のシステムと比較したとこ
ろ、いずれの場合も感度が同じとすればＭＴＦは従来シ
ステムを上回ることが確認された。Furthermore, when the amount of phosphor was changed and compared with the conventional system, it was confirmed that the MTF exceeds that of the conventional system if the sensitivity is the same in both cases.
第１図は従来の増感紙システムを示す図、第２図は本発
明のシステムを示す図である。
１・・フィルムベース ２・・感光乳剤３・・フィル
ム ４・螢光体
５・・増感紙
代理人弁理士 則 近 憲佑（ほか１名）Ｐ１ ｍ
手 続 補 正 書（方式）
％式％
ｌ事件の表示
特願昭５７−４２６９９号
２発明の名称
増感紙システム
３、補正をする者
事件との関係 特許 出願人
（３０７） 東京芝浦電気株式会社
４代 理 人
〒１００
東京都千代田区内幸町１−１−６
昭和５７年６月２９日（発送日）
６補正の対象
７、補正の内容 −＠−書の浄
書（内容に炙更なし）
３２２−FIG. 1 is a diagram showing a conventional intensifying screen system, and FIG. 2 is a diagram showing the system of the present invention. 1. Film base 2. Emulsion 3. Film 4. Fluorescent material 5. Intensifying screen Patent attorney Nori Chika Kensuke (and 1 other person) P1 m Procedure Amendment (method) % formula % l Display of patent application No. 57-42699 2 Name of the invention Intensifying screen system 3 Relationship with the person making the amendment Patent Applicant (307) Tokyo Shibaura Electric Co., Ltd. 4th Director Mr. 100 Chiyoda, Tokyo 1-1-6 Saiwaicho, Ward June 29, 1980 (shipment date) 6 Subject of amendment 7, Contents of amendment -@- Engraving of calligraphy (no burnt content) 322-
Claims (9)
るフィルムと、前記片面匈に設けられ希土類螢光体層を
有してなる増感紙とを具備してなる増感紙システム。(1) An intensifying screen system comprising a film having a photosensitive emulsion on one side of a film base, and an intensifying screen provided on one side of the film base and having a rare earth phosphor layer.
、ＧｄＬαの少くとも１種）である特許請求の範囲第１
項に記載の増感紙システム。(2) The phosphor layer is Ln, 0.8:TA (La=Y
, GdLα)
Intensifying screen system as described in Section.
でなる螢光体を有する特許請求の範囲第２項に記載の増
感紙システム。(3) The phosphor layer is (Y-Gd), O, S:'l
An intensifying screen system according to claim 2, comprising a phosphor consisting of.
されてなる特許請求の範囲第１項に記載の増感紙システ
ム。(4) The intensifying screen system according to claim 1, wherein the phosphor layer is composed of phosphors having an average particle size of 3 to 20 μm.
い螢光体の粒子が配列し、フィルムから遠ざかるにつれ
て粒径が小さくなるように配列してなる特許請求の範囲
第１項に記載の増感紙システム。(5) The phosphor layer is arranged such that phosphor particles having a large particle size are arranged on the surface close to the film, and the particle size becomes smaller as the distance from the film increases. Intensifying screen system as described.
る特許請求の範囲第１項に記載の増感紙システム。(6) The intensifying screen system according to claim 1, wherein the phosphor layer has a thickness of 100 to 400 microns.
れてなる特許請求の範囲第１項に記載の増感紙システム
。(7) The intensifying screen system according to claim 1, wherein the phosphor layer is covered with a protective film having a thickness of 5 to 20 μm.
されてなる特許請求の範囲第１項に記載の増感紙システ
ム。(8) The intensifying screen system according to claim 1, wherein the phosphor layer is supported by a support made of an opaque material.
の間に感度のピークを有する特許請求の範囲第１項に記
載の増感紙システム。 ・・ 感光乳剤の銀粒子は１０μ以下の粒度を有する特
許請求の範囲第１項に記載の増感紙システム。 Ｑｌ） フィルムと増感紙は、カーボンを含む４１１
！ＩｉＩで形成されたカセツテに収納されてなる特許請
求の範囲第１項に記載の増感紙システム。 ０３５７ｍＲ以下のＸ線量（増感紙−フィルム糸に対し
て）で適正写真濃度が得られる特許請求の範囲第１項に
記載の増感紙システム。(9) The photosensitive emulsion has a wavelength of 5QQim ~ 6oorLm
The intensifying screen system according to claim 1, which has a sensitivity peak between. ... The intensifying screen system according to claim 1, wherein the silver particles of the light-sensitive emulsion have a particle size of 10 μm or less. Ql) The film and intensifying screen contain 411 carbon.
! The intensifying screen system according to claim 1, which is housed in a cassette made of III. The intensifying screen system according to claim 1, wherein an appropriate photographic density can be obtained with an X-ray dose (relative to the intensifying screen-film thread) of 0.0357 mR or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4269982A JPS58160952A (en) | 1982-03-19 | 1982-03-19 | Intensifying screen system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4269982A JPS58160952A (en) | 1982-03-19 | 1982-03-19 | Intensifying screen system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58160952A true JPS58160952A (en) | 1983-09-24 |
Family
ID=12643295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4269982A Pending JPS58160952A (en) | 1982-03-19 | 1982-03-19 | Intensifying screen system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58160952A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173500A (en) * | 1984-02-20 | 1985-09-06 | コニカ株式会社 | Screen for x-ray photograph and manufacture thereof |
| JPS61151534A (en) * | 1984-12-26 | 1986-07-10 | Kasei Optonix Co Ltd | Method for using green luminous intensifying screen |
| JPS63148900U (en) * | 1987-03-11 | 1988-09-30 |
-
1982
- 1982-03-19 JP JP4269982A patent/JPS58160952A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173500A (en) * | 1984-02-20 | 1985-09-06 | コニカ株式会社 | Screen for x-ray photograph and manufacture thereof |
| JPS61151534A (en) * | 1984-12-26 | 1986-07-10 | Kasei Optonix Co Ltd | Method for using green luminous intensifying screen |
| JPS63148900U (en) * | 1987-03-11 | 1988-09-30 |
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