JPS61151534A - Method for using green luminous intensifying screen - Google Patents
Method for using green luminous intensifying screenInfo
- Publication number
- JPS61151534A JPS61151534A JP27339184A JP27339184A JPS61151534A JP S61151534 A JPS61151534 A JP S61151534A JP 27339184 A JP27339184 A JP 27339184A JP 27339184 A JP27339184 A JP 27339184A JP S61151534 A JPS61151534 A JP S61151534A
- Authority
- JP
- Japan
- Prior art keywords
- intensifying screen
- green
- blue
- energy peak
- sharpness
- 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
- 238000000034 method Methods 0.000 title claims description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000035945 sensitivity Effects 0.000 claims abstract description 22
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 230000003595 spectral effect Effects 0.000 claims abstract description 8
- 239000011241 protective layer Substances 0.000 claims abstract description 7
- 238000004020 luminiscence type Methods 0.000 claims abstract description 6
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 3
- 229910052772 Samarium Inorganic materials 0.000 claims abstract 2
- 229910052775 Thulium Inorganic materials 0.000 claims abstract 2
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 229910052769 Ytterbium Inorganic materials 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 10
- 239000010410 layer Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000000982 direct dye Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 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】
（産業上の利用分野）
本発明はＸ線写真の撮影方法、更に詳しくは増感紙と写
真フィルムの新規な組み合せ方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of taking X-ray photographs, and more particularly to a novel method of combining an intensifying screen and a photographic film.
（従来の技術）
従来のオルンＸ線写真フィルムは添付図面の第１図の曲
線Ａに示されるようにグリーン部（４８０〜５８０ｎｍ
）の感度はブルー部（３５０〜４８０ ｎｍ）の感度よ
う低かったので、これと組合せて使用するグリーン発光
増感紙の例えば商品名富士フィルムＲＸＯ−Ｇフィルム
あるいはコダック社ｏｃ−１フィルムのブルー発光部の
強度が感度に及はす効果が犬きい。又、鮮鋭度について
も増感紙よ多発生するブルー光（３５０〜４８０ ｎｍ
）とグリーン光（４８０〜５８０ｎｍ）の効果を調べ
るとグリーン光の方が鮮鋭度に対する影響が大きく不利
であった。(Prior Art) Conventional Orn X-ray film has a green area (480 to 580 nm) as shown by curve A in Figure 1 of the attached drawings.
) had a low sensitivity in the blue region (350 to 480 nm), so the green-emitting intensifying screen used in combination with this, such as the blue-emitting intensifying screen of Fujifilm RXO-G film or Kodak's OC-1 film, was The effect that the strength of the parts has on the sensitivity is interesting. In addition, regarding sharpness, blue light (350 to 480 nm), which is often generated by intensifying screens,
) and green light (480 to 580 nm), it was found that green light had a greater influence on sharpness and was disadvantageous.
従ってグリーン発光増感紙であってもブルー発光部はＸ
線写真撮影系の感度・鮮鋭度の観点から重要で一定のブ
ルー発光を必要としていた。Therefore, even if it is a green-emitting intensifying screen, the blue-emitting part is
A certain level of blue light emission was important from the viewpoint of sensitivity and sharpness in line photography systems.
最近になって従来とは感度の異なったフィルムの出現あ
るいはグリーン発光増感紙の出現等により、新たに最適
な組み合せを考慮しないとそれぞれの特性が充分生かさ
れていない等の問題が生じている。Recently, with the appearance of films with different sensitivity than conventional ones and the appearance of green light-emitting intensifying screens, problems have arisen such as the characteristics of each cannot be fully utilized unless a new optimal combination is considered. .
（発明が解決しようとする問題点）
最近の新しいオルソＸ線写真フィルム例えば商品名富士
フィルムのＮｅｗ ＲＸＯ−ＧあるいはコダックのＴＭ
Ｇは第１図の曲線Ｂに示されるようにグリーン部の感度
がブルー部の感度より高くなっている。(Problem to be solved by the invention) Recent new ortho-X-ray films such as Fuji Film's New RXO-G or Kodak's TM
For G, as shown by curve B in FIG. 1, the sensitivity of the green portion is higher than the sensitivity of the blue portion.
本発明者等は増感紙とこの新しいオルソＸ線写真フィル
ムとの組合せによって従来よりも高感度かつ高鮮鋭度の
Ｘ線写真撮影を可能にする増感紙を得るため種々の実験
を行なった結果、増感紙を構成する螢光体及び結合剤を
種々改良することにより、感度及び鮮鋭度を向上させる
新しい方法を見出し、本発明に至った。The present inventors conducted various experiments in order to obtain an intensifying screen that enables X-ray photography with higher sensitivity and sharpness than before by combining an intensifying screen and this new ortho-X-ray photographic film. As a result, a new method for improving sensitivity and sharpness was discovered by variously improving the phosphor and binder constituting the intensifying screen, leading to the present invention.
（問題点を解決するための手段）
本発明は（（ＧｄｒｎＬ＆１−ｍ）、−ｘ−ｙＴｂｘＡ
ｙ｝２Ｏ２Ｓ 螢光体（ＡはＤｙ ＃ Ｐｒ ＋ ｙ
ｂ ｌ Ｓｍ ＋ Ｔｍ ＊ Ｈｏ ＊ Ｃｅ 、Ｙの
少なくとも１種であり、Ｏ≦ｍ≦１．０．００１≦Ｘ≦
０．０９，０≦ｙ≦０．００５）と結合剤、支持体及び
保護層からなるグリーン発光増感紙においてブルー発光
のエネルギーピーク値（４１０〜４２５ ｎｍ）に比べ
グリーン発光のエネルギーピーク値（５４０〜５５０ｎ
ｍ）が１０倍以上４０倍以下の発光特性を持った増感紙
とブルー部（３５０〜４８０ｎｍ）よりグリーン部（４
８０〜５８０ｎｍ）の方が分光感度ピーク値が高いＸ線
写真フィルムとを組合わせることを特徴とする増感紙と
Ｘ線写真フィルムの使用方法に関する。(Means for solving the problems) The present invention provides ((GdrnL&1-m), -x-yTbxA
y}2O2S phosphor (A is Dy # Pr + y
b l Sm + Tm * Ho * Ce , at least one type of Y, O≦m≦1.0.001≦X≦
0.09, 0≦y≦0.005), a binder, a support, and a protective layer. 540-550n
m) has a luminescent property of 10 times or more and 40 times or less, and the green part (4
The present invention relates to a method of using an intensifying screen and an X-ray photographic film, characterized in that the intensifying screen and X-ray photographic film are combined with an X-ray photographic film having a higher spectral sensitivity peak value in the wavelength range (80 to 580 nm).
本発明の方法に用いられる増感紙において使用される螢
光体は上記の組成式で示される。The phosphor used in the intensifying screen used in the method of the present invention is represented by the above compositional formula.
この螢光体の発光ス滅りトルの一例は第２図に示されて
いる。組成は（ＣＧｄＱ、７”ＴＪ、 ５）０．９９５
ＴｂＯ０００５｝２Ｏ２Ｓであり、グリーン発光部（４
８０〜５８０ｎｍ）のエネルギーピークの最大を５４５
ｎｍ付近にもち、ブルー発光部（３５０〜４８０ｎｍ）
のエネルギーピークの最大を４２０ｎｍ付近にもってい
る。An example of the luminescence extinguisher of this phosphor is shown in FIG. The composition is (CGdQ, 7”TJ, 5) 0.995
TbO0005}2O2S, and the green light emitting part (4
80-580nm) maximum energy peak of 545
around nm, blue emitting region (350-480nm)
It has a maximum energy peak around 420 nm.
なお、螢光体については、焼成時において上記組成式を
もつ単一の螢光体でもよいし、混合によって第２図のス
ペクトルになるような二つ以上の螢光体の組み合せも本
発明の範囲に含まれる。The phosphor may be a single phosphor having the above composition formula upon firing, or a combination of two or more phosphors that produces the spectrum shown in Figure 2 when mixed is also applicable to the present invention. Included in the range.
この螢光体を使った増感紙において、上記エネルギーピ
ーク最大値の比グリーン部／ブルー部（以下Ｇ４と記す
）を１０〜４０、更により好ましくは１７〜３０にする
には螢光体の組成比を適当に選択して発光そのものの０
４を好ましい範囲忙するか、螢光体層を構成する結合剤
の染色、台紙や保護膜の染色（染料もしくは顔料でもよ
い）によって特定波長域（３５０〜４８０ｎｍ）の発光
を吸収することによっても〜４を好ましい範囲とするこ
とが可能である。本発明の方法はこのようにしてＧ／Ｂ
を好ましい範囲にした増感紙とグリーン分光感度のピー
クがブルー分光感度のピークより高いフィルムと組み合
せて使用することに特徴がある。In the intensifying screen using this phosphor, in order to make the ratio of the maximum energy peak value of green part/blue part (hereinafter referred to as G4) from 10 to 40, and even more preferably from 17 to 30, the phosphor is By appropriately selecting the composition ratio, the emission itself can be reduced to 0.
4 within a preferable range, or by absorbing light in a specific wavelength range (350 to 480 nm) by dyeing the binder constituting the phosphor layer or dyeing the mount or protective film (dye or pigment may be used). A preferable range is 4 to 4. The method of the invention thus allows G/B
It is characterized in that it is used in combination with an intensifying screen whose green spectral sensitivity is in a preferable range and a film whose green spectral sensitivity peak is higher than the blue spectral sensitivity peak.
第１表は螢光体〔（Ｇｄｍ” １−ｍ）ｏ、？？５Ｔｂ
Ｏ９０（１５｝２Ｏ２ＳにかんしてｔａとＧｄの比とＧ
／Ｂ感度と鮮鋭度の表である。Table 1 shows the fluorescent material [(Gdm" 1-m)o, ??5Tb
Regarding O90(15}2O2S, the ratio of ta and Gd and G
/B is a table of sensitivity and sharpness.
第１表
ここでＧ／Ｂビーク比はＸ線励起による発光スペクトル
により決定した。また鮮鋭度はＭＴＦ ２ ＬＰ／ｍ＊
の値を採用した。感度及び鮮鋭度はいずれも相対値であ
！” ＣＧｄＱ、９９５ＴｂＯ，ＱＱ５ ｝２Ｏ２”螢
光体を使用した増感紙の値を１００とした。以降の表及
び実施例にある値も同じ基準による。感度にりいては比
較のためすべて揃えである。Table 1 Here, the G/B peak ratio was determined from the emission spectrum by X-ray excitation. Also, the sharpness is MTF 2 LP/m*
The value of was adopted. Sensitivity and sharpness are both relative values! The value of the intensifying screen using the "CGdQ, 995TbO, QQ5 }2O2" phosphor was set to 100. The values in the following tables and examples are based on the same criteria. In terms of sensitivity, all are the same for comparison.
従来のタイプの増感紙とフィルムの組み合せよシもよシ
鮮鋭度がよい領域、すなわち鮮鋭度が１００以上を示す
のはＧ／Ｂが１０〜４０、さらによい領域は１７〜３０
である。Combining a conventional type of intensifying screen and film, the area with good sharpness, that is, the sharpness of 100 or more, has a G/B of 10 to 40, and the even better area has a G/B of 17 to 30.
It is.
なお、との図の関係はＴｂの濃度ＸおよびＡの濃度ｙを
その目的に応じて０．００１≦Ｘ≦０．０９．０≦ｙ≦
０．００５の範囲内で決定することによっても実現でき
る。The relationship in the figure is that the concentration X of Tb and the concentration y of A are 0.001≦X≦0.09.0≦y≦ depending on the purpose.
This can also be achieved by determining within the range of 0.005.
本発明者等はＧ／Ｂを上記の好ましい範囲にする為に結
合剤とともに染色剤を用いて種々の増感紙を構成し、実
験を行った。第２表は
（” ０．９９５ ＴｂＯ，００５｝２Ｏ２Ｓ螢光体を
使用し、三菱化成製Ｄｌａｒｅｓｉｎ Ｙｅｌｌｏｗ
Ｆを染色剤として結合剤ニ混合して得た増感紙とフィル
ムを用いた場合に得られたＧ４と鮮鋭度の関係を示す表
である。ここで染料濃度は螢光体１００ｇに対する重量
（■）である。The present inventors conducted experiments by constructing various intensifying screens using dyes together with binders in order to bring G/B into the above-mentioned preferable range. Table 2 shows ("0.995 TbO,005}2O2S phosphor was used, Dlaresin Yellow manufactured by Mitsubishi Kasei
It is a table showing the relationship between G4 and sharpness obtained when using an intensifying screen and film obtained by mixing F as a dye and a binder. Here, the dye concentration is the weight (■) relative to 100 g of phosphor.
第２表
すなわち螢光体が例えば（ＧｄＯ，９９７ＴｂＯ，００
５） ２０２ＳでＧ／Ｂは８でありても染料として主吸
収域が（３５０〜４８０である）橙〜黄色の染料、顔料
等を用いることによシ、増感紙としてのＧ／１３を１０
〜４０より好ましくは１７〜３０にすることが可能にな
シ鮮鋭度において従来よシ向上することがわかる。In Table 2, the phosphor is for example (GdO,997TbO,00
5) Even if G/B is 8 in 202S, by using a dye, pigment, etc. whose main absorption range is from orange to yellow (350 to 480), G/13 as an intensifying screen can be obtained. 10
It can be seen that the sharpness can be set to 17 to 30, more preferably 17 to 30, than 17 to 30, which improves the sharpness compared to the conventional one.
また、保護層の着色についても同様の結果が得られた。Similar results were also obtained regarding the coloring of the protective layer.
なお、この場合染料としては直接染料及び油溶性染料が
あり、主吸収域が３５０〜４８０ｎｍの範囲にあれば本
発明の範囲に含まれる。In this case, the dyes include direct dyes and oil-soluble dyes, and if the main absorption range is in the range of 350 to 480 nm, they are included in the scope of the present invention.
なおこの場合例えば浸漬等によシ保護膜のみを着色して
もよい。この場合には、例えばメチルオレンジ飽和水溶
液に目的の濃度に応じた時間だけ浸漬すればよい。In this case, only the protective film may be colored by, for example, immersion. In this case, it may be immersed, for example, in a saturated aqueous solution of methyl orange for a period of time depending on the desired concentration.
以下に実施例を記す。Examples are described below.
実施例１
（Ｇｄン７．Ｔｂａ、ｏ、｝２Ｏ２Ｓ螢光体
８重量部硝化綿 ｌＮ溶剤
（アセトン、酢エチル、酸ブチルを１：１：８）６
＃を用いて混合し、螢光体塗布液を作成する。この液を
０．２酎厚のカーボンブラック光吸収層を有するポリエ
チレンテレフタレート支持体上に螢光体塗布密度が５０
ｍ９７ｃｍ２になるようにナイフコーターを用いて均
一に塗布し、５０℃で乾燥して螢光体層を作成した。こ
の螢光体層上にアクリル樹脂を均一に塗布し、乾燥させ
、約１０μの透明保護膜とした。Example 1 (Gdn7.Tba,o,}2O2S phosphor
8 parts by weight Nitrified cotton 1N solvent (acetone, ethyl acetate, butyl acid 1:1:8) 6
Mix using # to create a phosphor coating solution. This solution was applied to a polyethylene terephthalate support having a carbon black light absorbing layer with a thickness of 0.2 mm, so that the phosphor coating density was 50.
It was coated uniformly using a knife coater to a thickness of 97 cm 2 and dried at 50° C. to form a phosphor layer. Acrylic resin was uniformly coated on this phosphor layer and dried to form a transparent protective film with a thickness of about 10 μm.
増感紙のＧ／Ｂば１５：１で鮮鋭度１０５％を得た。A sharpness of 105% was obtained with an intensifying screen G/B ratio of 15:1.
実施例２
螢光体に（（０ｄ０．５”’０．５）０．９９５ Ｔｂ
０．００５ ｝２Ｏ２Ｓを用いる他は実施例１と同様に
して増感紙を得た。Example 2 Fluorescent material ((0d0.5"'0.5)0.995 Tb
An intensifying screen was obtained in the same manner as in Example 1 except that 0.005}2O2S was used.
この増感紙のＧ／Ｂは１９であり、得られた鮮鋭度は１
１０％であった。The G/B of this intensifying screen is 19, and the obtained sharpness is 1
It was 10%.
実施例３
螢光体として（ＧｄＯ，？９５ ＴｂＱ、００５ ）２
ｏ２”を用い、螢光体塗布液を作成する際に、三菱化成
製の染料Ｄｉａｒｅｓｉｎ Ｙｓｌｌｏｖｒ−Ｆ （０
，００５重量部）を加えた他は実施例１と同様な方法を
用いて増感紙を得た。Example 3 As a phosphor (GdO, ?95 TbQ, 005)2
o2'' to create a phosphor coating solution, the dye Diaresin Ysllovr-F (0
An intensifying screen was obtained using the same method as in Example 1 except that 0.005 parts by weight) was added.
増感紙のＧ／Ｂは２２であり、得られた鮮鋭度は１０５
チであった。The G/B of the intensifying screen is 22, and the obtained sharpness is 105
It was Chi.
実施例４
実施例３で染料としていずれも三菱化成製のＤｉ ａｒ
＠ｓ ｉ ｎ Ｙｅ １１ ｏｗ ＦのかわりにＤｉａ
ｒｅｇｉｎ ＹｅｌｌｏｗＨＧ（０，００２重量部）を
加えた他は同一の組成をもつ増感紙を得た。Example 4 Diar manufactured by Mitsubishi Kasei was used as the dye in Example 3.
@s in Ye 11 ow Dia instead of F
An intensifying screen having the same composition except that regin YellowHG (0,002 parts by weight) was added was obtained.
この増感紙のＧカは２０であり、得られた鮮鋭度は１０
３％であった。The G force of this intensifying screen is 20, and the obtained sharpness is 10.
It was 3%.
実施例５
螢光体として（Ｇｄｏ、９，５Ｔｂｏ、。。５｝２Ｏ□
Ｓを用い、増感紙を作成するに際し、アクリル樹脂中に
染料Ｄｉａｒｅｓｌｎ Ｙｅｌｌｏｗ Ｆをアクリル樹
脂１重量部に対し、０．０００１重量部加え、染色され
た保護層を螢光体層上に形成し、他は実施例１と同様の
方法を用〜・て増感紙を得た。この増感紙のＧ／Ｂ ＝
２５であり、得られた鮮鋭度は１０５チであった。Example 5 As a phosphor (Gdo, 9,5Tbo,...5}2O□
When creating an intensifying screen using S, 0.0001 parts by weight of the dye Diares Yellow F was added to 1 part by weight of the acrylic resin in the acrylic resin to form a dyed protective layer on the phosphor layer. An intensifying screen was obtained using the same method as in Example 1 except for the following. G/B of this intensifying screen =
25, and the obtained sharpness was 105 inches.
実施例６
螢光体として〔（Ｇｄ（１，５”０．５）Ｑ、９９５
ＴｂＯ，００４９０，０００１］２ｂ
Ｏ２Ｓを用い他は実施例１と同様処して増感紙を得た。Example 6 As a phosphor [(Gd(1,5"0.5)Q, 995
An intensifying screen was obtained in the same manner as in Example 1 except that TbO,00490,0001]2bO2S was used.
この増感紙の０４は１８であり、得られた鮮鋭度は１０
９％であった。04 of this intensifying screen is 18, and the obtained sharpness is 10
It was 9%.
（発明の効果）
本発明による方法により、Ｘ線感度は一定であるＫもか
かわらず鮮鋭度の向上は著しく、得られるＸ線写真の画
質は極めて優れている。(Effects of the Invention) According to the method of the present invention, although the X-ray sensitivity is constant K, the sharpness is significantly improved, and the image quality of the obtained X-ray photograph is extremely excellent.
本発明により、特にグリーン発光増感紙を用〜・てかつ
高鮮鋭度を有するＸ線写真が得られることになり、その
実用上の効果は極めて大きい。According to the present invention, it is possible to obtain an X-ray photograph with high sharpness, especially using a green luminescent intensifying screen, and its practical effects are extremely large.
第１図は本発明の方法に用いられるＸ線フィルムＢと従
来のフィルムＡの感度を示している。
第２図は本発明の方法に用いられる増感紙の構成成分で
ある螢光体の発光スペクトルの一つの例を示している。
第１図
波長（ｎｍ）FIG. 1 shows the sensitivity of X-ray film B used in the method of the present invention and conventional film A. FIG. 2 shows an example of the emission spectrum of a phosphor that is a component of the intensifying screen used in the method of the present invention. Figure 1 Wavelength (nm)
Claims (1)
＿ｙＴｂ＿ｘＡ＿ｙ｝＿２Ｏ＿２Ｓ螢光体（ＡはＤｙ、
Ｐｒ、Ｙｂ、Ｓｍ、Ｔｍ、Ｈｏ、Ｃｅ、Ｙの少なくとも
１種であり、０≦ｍ≦１、 ０．００１≦ｘ≦０．０９、０≦ｙ≦０．００５）と結
合剤、支持体及び保護層からなるグリーン発光増感紙に
おいて、ブルー発光のエネルギーピーク値（４１０〜４
２５ｎｍ）に比べグリーン発光のエネルギーピーク値（
５４０〜５５０ｎｍ）が１０倍以上４０倍以下の発光特
性を持った増感紙とブルー部（３５０〜４８０ｎｍ）よ
りグリーン部（４８０〜５８０ｎｍ）の方が分光感度ピ
ーク値が高いＸ線写真フィルムとを組合わせることを特
徴とする増感紙とＸ線写真フィルムの使用方法。 ２）特許請求の範囲第１項で使用される螢光体で０．２
≦ｍ≦０．８であることを特徴とする方法。 ３）特許請求の範囲第１項で使用される増感紙がブルー
発光エネルギーピーク値（４１０〜４２５ｎｍ）に比べ
グリーン発光のエネルギーピーク値（５４０〜５５０ｎ
ｍ）が１７倍以上３０倍以下の発光特性を持った増感紙
であることを特徴とする方法。 ４）特許請求の範囲第１項の結合剤及び／又は保護層が
主吸収ピークが３５０〜４８０ｎｍの範囲にある染色剤
を含んでいることを特徴とする方法。[Claims] 1) {(Gd_mLa_1_-_m)_1_-_x_-
_yTb_xA_y}_2O_2S phosphor (A is Dy,
At least one of Pr, Yb, Sm, Tm, Ho, Ce, and Y (0≦m≦1, 0.001≦x≦0.09, 0≦y≦0.005), a binder, and a support. In a green luminescent intensifying screen consisting of a protective layer and a protective layer, the energy peak value of blue luminescence (410 to 4
The energy peak value of green emission (
540 to 550 nm) with an emission characteristic of 10 times or more and 40 times or less, and an X-ray photographic film whose spectral sensitivity peak value is higher in the green part (480 to 580 nm) than in the blue part (350 to 480 nm). A method of using an intensifying screen and an X-ray photographic film characterized by combining the following. 2) 0.2 in the phosphor used in claim 1
A method characterized in that ≦m≦0.8. 3) The intensifying screen used in claim 1 has a green emission energy peak value (540 to 550 nm) compared to a blue emission energy peak value (410 to 425 nm).
A method characterized in that m) is an intensifying screen having a luminescent property of 17 times or more and 30 times or less. 4) A method characterized in that the binder and/or protective layer of claim 1 contains a dye having a main absorption peak in the range of 350 to 480 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59273391A JPH0658510B2 (en) | 1984-12-26 | 1984-12-26 | How to use green luminescent intensifying screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59273391A JPH0658510B2 (en) | 1984-12-26 | 1984-12-26 | How to use green luminescent intensifying screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61151534A true JPS61151534A (en) | 1986-07-10 |
| JPH0658510B2 JPH0658510B2 (en) | 1994-08-03 |
Family
ID=17527242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59273391A Expired - Lifetime JPH0658510B2 (en) | 1984-12-26 | 1984-12-26 | How to use green luminescent intensifying screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0658510B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011530000A (en) * | 2008-08-07 | 2011-12-15 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Luminescent substances and associated spectral filters |
| US9638807B2 (en) | 2008-08-07 | 2017-05-02 | Koninklijke Philips N.V. | Scintillating material and related spectral filter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58160952A (en) * | 1982-03-19 | 1983-09-24 | Toshiba Corp | Intensifying screen system |
| JPS5930535A (en) * | 1982-08-12 | 1984-02-18 | Konishiroku Photo Ind Co Ltd | Image forming method using radiation |
-
1984
- 1984-12-26 JP JP59273391A patent/JPH0658510B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58160952A (en) * | 1982-03-19 | 1983-09-24 | Toshiba Corp | Intensifying screen system |
| JPS5930535A (en) * | 1982-08-12 | 1984-02-18 | Konishiroku Photo Ind Co Ltd | Image forming method using radiation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011530000A (en) * | 2008-08-07 | 2011-12-15 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Luminescent substances and associated spectral filters |
| US9638807B2 (en) | 2008-08-07 | 2017-05-02 | Koninklijke Philips N.V. | Scintillating material and related spectral filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0658510B2 (en) | 1994-08-03 |
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