EP1527150A2 - Verfahren zur bedampfung eines trägers mit einem nadelförmigen röntgenleuchtstoff sowie röntgenleuchtstoff - Google Patents
Verfahren zur bedampfung eines trägers mit einem nadelförmigen röntgenleuchtstoff sowie röntgenleuchtstoffInfo
- Publication number
- EP1527150A2 EP1527150A2 EP03787686A EP03787686A EP1527150A2 EP 1527150 A2 EP1527150 A2 EP 1527150A2 EP 03787686 A EP03787686 A EP 03787686A EP 03787686 A EP03787686 A EP 03787686A EP 1527150 A2 EP1527150 A2 EP 1527150A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- csbr
- alkali halide
- phosphor
- alkali
- ray
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 title abstract description 12
- 239000000758 substrate Substances 0.000 title abstract description 5
- 238000000151 deposition Methods 0.000 title abstract 2
- 239000003513 alkali Substances 0.000 claims abstract description 39
- 239000012071 phase Substances 0.000 claims abstract description 26
- 229910052693 Europium Inorganic materials 0.000 claims abstract description 10
- 229910052792 caesium Inorganic materials 0.000 claims abstract description 10
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 8
- 229910052701 rubidium Inorganic materials 0.000 claims abstract description 8
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 7
- 150000001340 alkali metals Chemical group 0.000 claims abstract description 7
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 7
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 6
- 229910052689 Holmium Inorganic materials 0.000 claims abstract description 6
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 6
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 6
- 229910052769 Ytterbium Inorganic materials 0.000 claims abstract description 6
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 6
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 6
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 6
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 6
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 5
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 5
- 229910052777 Praseodymium Inorganic materials 0.000 claims abstract description 5
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 5
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 5
- 239000012808 vapor phase Substances 0.000 claims abstract description 5
- 229910052765 Lutetium Inorganic materials 0.000 claims abstract description 4
- LYQFWZFBNBDLEO-UHFFFAOYSA-M caesium bromide Chemical compound [Br-].[Cs+] LYQFWZFBNBDLEO-UHFFFAOYSA-M 0.000 claims description 112
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 54
- 150000004820 halides Chemical class 0.000 claims description 41
- 238000003860 storage Methods 0.000 claims description 38
- 238000007740 vapor deposition Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910001413 alkali metal ion Inorganic materials 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 229910021644 lanthanide ion Inorganic materials 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 229910052691 Erbium Inorganic materials 0.000 abstract description 5
- 229910052775 Thulium Inorganic materials 0.000 abstract description 4
- 229910052747 lanthanoid Inorganic materials 0.000 abstract description 2
- 150000002602 lanthanoids Chemical class 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 150000003842 bromide salts Chemical class 0.000 description 2
- -1 bromine compound Chemical class 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 229910001940 europium oxide Inorganic materials 0.000 description 2
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 239000012190 activator Substances 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7732—Halogenides
- C09K11/7733—Halogenides with alkali or alkaline earth metals
Definitions
- M Cs or Rb
- M 1 at least one alkali metal from the group Li, Na, K, Rb and Cs
- M 11 at least one divalent metal from the group Be, Mg, Ca, Sr, Ba, Zn, Cd, Cu and Ni
- M 111 at least one metal from the group Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, AI, Ga and In
- B an activator that contains at least one metal from the group Eu, Tb, Ce, Tm, Dy, Pr, Ho, Nd , Yb, Er, Gd, Lu, Sm, Y, Tl, Na, Ag, Cu, Mg, Pb, Bi, Mn and In, X, X 'and X "are the same or different and represent a
- WO 01/03156 A1 describes a production process for a stimulable storage phosphor of the general formula CsX: Eu for the composition of the phosphor for the
- Such a storage phosphor was produced from CsBr and EuBr, EuBr 3 or EuOBr
- the invention is based on the object of designing an X-ray phosphor and a method for producing an acicular X-ray phosphor in such a way that an optimal light yield can be achieved.
- alkali halide phases evaporate simultaneously with an alkali halide, mixed in the vapor phase and evaporated on the support.
- use begins when the evaporator is loaded with the material to be evaporated.
- the evaporation of the phase, but the formation of the phase in the layer, cannot be found in any of the above-mentioned literature.
- the vapor deposition is carried out at temperatures between 50 ° C. and 300 ° C. and a pressure between 0.001 Pa and 3 Pa.
- a better distribution of the evaporated phases and an increase in the luminous efficacy are obtained if a temperature treatment of the phosphor layer is carried out after the evaporation and cooling, the temperature treatment after cooling preferably to room temperature in the presence of steam.
- the temperature treatment can be carried out in the range from 100 ° C. to 300 ° C. in ambient air or an inert gas.
- Cs x Eu y Br (x + 2y) can advantageously be used as the alkali halide phase and CsBr can be used as the alkali halide, so that an X-ray storage phosphor of the general formula CsBr: Cs x Eu y Br (x + 2y) forms.
- the carrier can form a storage phosphor plate with the layer of the needle-shaped X-ray phosphor.
- the alkali halide phase and the alkali halide can be mixed and introduced separately into several evaporator boats in an evaporator ship or the alkali halide phase and the alkali halide.
- the object is achieved for the X-ray phosphor by producing it according to the following formula:
- M is at least one alkali metal ion from the group Na, K, Rb and Cs , H ⁇ at least one halide from the group F, Cl, Br and I and S at least one lanthanide ion from the Group La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu.
- the invention was based on the idea of producing the alkali halide phases and simultaneously evaporating them with an alkali halide.
- the evaporation can take place from one evaporator ship or from two or more evaporator boats.
- a temperature treatment of the storage phosphor layer carried out after the evaporation and cooling leads to a better distribution of the evaporated phases and thus increases the light yield by a factor of 2-10, typically a factor of 4-5.
- the temperature treatment is effective only after cooling to room temperature in the presence of water vapor.
- the water vapor can be added to an inert gas Ar, N 2 , He, Ne, Kr, for example, or it can be in the ambient air. Direct heating up - even after cooling down after evaporation - does not improve the light output. The layer must therefore "have seen water vapor" first.
- phase material in the alkali halide Due to the pressure and temperature control during vapor deposition, needle-shaped layers are created which enable a homogeneous distribution of the phase material in the alkali halide. As a result, 100 - 800 pp of the phase material (average over the layer thickness) is sufficient to achieve an optimal light yield.
- temperatures between 50 ° C and 300 ° C and pressures between 0.001 Pa and 3 Pa are set.
- the temperature during the subsequent annealing is advantageously as high as the average substrate temperature during the vapor deposition.
- the annealing time is selected so that the desired light output is achieved.
- the alkali halides M 'and M * + may be the same or different.
- the halides H ' ⁇ , H " _ and ⁇ 0" ⁇ can be the same or different.
- the factor k can also be 0, so that “pure” phase material is obtained.
- a) 50 g of CsEuBr 3 are mixed with 550 g of CsBr and then a storage phosphor CsBr: Cs x Eu y Br (x + 2y) (needle-shaped) is produced using the usual vapor deposition method.
- b) 20 g of CsEu 2 Br 5 are mixed with 580 g of CsBr and then a storage phosphor CsBr: Cs x Eu y Br (x + 2y) (needle-shaped) is produced using the usual vapor deposition method.
- n) 30 g CsEuBr 3 and 20 g Cs 2 EuBr 4 are mixed with 550 g CsBr and then a storage phosphor CsBr: Cs x Eu y Br (x + 2y) (needle-shaped) is produced with the usual vapor deposition method, o) 60 g CsEuBr 3 and 20 g of Cs 3 EuBr 5 are mixed with 520 g of CsBr and then a storage phosphor CsBr: Cs x Eu y Br (x + y) (needle-shaped) is produced using the usual vapor deposition method.
- CsBr Cs x Eu y Br (x + 2y)
- pure CsBr can also be refilled and this mixture can then be evaporated. This can also be done several times until the CsBr: Cs x Eu y Br (x + 2y) concentration has dropped below 0.1 mol%.
- the individual substances Cs x Eu y Br (x + y) and CsBr can also be evaporated from two or more evaporator boats. Also from an evaporator Shuttles CsBr and Cs x Eu y Br (x + 2y) as a mixture and a pure substance, e.g. CsBr, can be evaporated from another.
- a europium / bromine compound (eg EuBr 2 , EuBr 3 ) can also be evaporated together with the Cs x Eu y Br (X + y) and CsBr.
- the fluorides, chlorides and / or iodides can also be used.
- Europium oxibromides e.g. EuOBr, Eu 3 0 4 Br, Eu 3 OBr 4 , Eu 4 OBr 6
- EuOBr 6 Europium oxibromides
- the oxyfluorides, oxychlorides and / or oxyiodides can also be used.
- the europium oxides (eg EuO, Eu 2 0 3 ) can also be evaporated together with the Cs x Eu y Br (x + 2y) and CsBr.
- Europium oxibromide and europium oxide can also be vaporized together with the Cs x Eu y Br (x + 2y) and CsBr.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Luminescent Compositions (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10234789 | 2002-07-30 | ||
| DE10234789 | 2002-07-30 | ||
| PCT/DE2003/002429 WO2004017352A2 (de) | 2002-07-30 | 2003-07-18 | Verfahren zur bedampfung eines trägers mit einem nadelförmigen röntgenleuchtstoff sowie röntgenleuchtstoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1527150A2 true EP1527150A2 (de) | 2005-05-04 |
Family
ID=31724056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03787686A Withdrawn EP1527150A2 (de) | 2002-07-30 | 2003-07-18 | Verfahren zur bedampfung eines trägers mit einem nadelförmigen röntgenleuchtstoff sowie röntgenleuchtstoff |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7189426B2 (de) |
| EP (1) | EP1527150A2 (de) |
| JP (1) | JP2005534790A (de) |
| AU (1) | AU2003250307A1 (de) |
| WO (1) | WO2004017352A2 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1793388A3 (de) * | 2005-11-30 | 2008-10-08 | Agfa HealthCare NV | Verfahren zum Stabilisieren von Speicherleuchtschirmen |
| EP3327170B1 (de) | 2007-09-12 | 2020-11-04 | Flisom AG | Vorrichtung zum herstellen eines verbindungsfilms |
| EP2067841A1 (de) * | 2007-12-06 | 2009-06-10 | Agfa HealthCare NV | Röntgenbildschirm oder -tafel mit photostimulierbarem Leuchtstoff |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484619A (en) * | 1979-06-18 | 1984-11-27 | Eaton Corporation | Vehicle temperature control system |
| US4622272A (en) * | 1984-07-31 | 1986-11-11 | Siemens Aktiengesellschaft | Luminescent screen for picture display apparatus and method for manufacturing such device |
| DE19505942A1 (de) * | 1995-02-21 | 1996-08-22 | Bayer Ag | (Co)Polymerisate auf Basis von Vinyl-Einheiten und ihre Verwendung in elektrolumineszierenden Anordnungen |
| FR2773897A1 (fr) * | 1998-01-22 | 1999-07-23 | Sagem | Dispositif de prise d'empreintes |
| EP1113458B1 (de) | 1999-12-27 | 2005-02-02 | Agfa-Gevaert | Binderfreier Speicherleuchtschirm mit nadelförmigen Kristallen und Verfahren zu dessen Erzeugung |
| DE10061743A1 (de) * | 2000-01-17 | 2001-07-19 | Siemens Ag | Verfahren zur Verbesserung der optischen Trennung von Leuchtstoffschichten |
| DE10044425C2 (de) * | 2000-09-08 | 2003-01-09 | Siemens Ag | Verfahren zur Herstellung einer Leuchstoffschicht |
| US6567753B2 (en) * | 2001-04-04 | 2003-05-20 | General Electric Company | Devices and methods for simultaneous measurement of transmission of vapors through a plurality of sheet materials |
| DE10141522C1 (de) * | 2001-08-24 | 2003-03-06 | Siemens Ag | Verfahren zur Herstellung einer Leuchtstoffschicht |
| DE10235051B4 (de) * | 2002-07-31 | 2004-06-09 | Siemens Ag | Verfahren zur Bedampfung eines Trägers mit einem Röntgenleuchtstoff |
| DE10242006B4 (de) * | 2002-09-11 | 2006-04-27 | Siemens Ag | Leuchtstoffplatte |
-
2003
- 2003-07-18 JP JP2004528391A patent/JP2005534790A/ja active Pending
- 2003-07-18 EP EP03787686A patent/EP1527150A2/de not_active Withdrawn
- 2003-07-18 AU AU2003250307A patent/AU2003250307A1/en not_active Abandoned
- 2003-07-18 WO PCT/DE2003/002429 patent/WO2004017352A2/de not_active Ceased
- 2003-07-18 US US10/522,318 patent/US7189426B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004017352A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004017352A3 (de) | 2005-03-03 |
| AU2003250307A8 (en) | 2004-03-03 |
| US7189426B2 (en) | 2007-03-13 |
| AU2003250307A1 (en) | 2004-03-03 |
| JP2005534790A (ja) | 2005-11-17 |
| WO2004017352A2 (de) | 2004-02-26 |
| US20050220999A1 (en) | 2005-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2353943C2 (de) | Leuchtstoff, Verfahren zu dessen Herstellung und dessen Verwendung | |
| US3795814A (en) | X-ray image converters utilizing lanthanum and gadolinium oxyhalide luminous materials activated with thulium | |
| DE69626911T2 (de) | Verfahren zur Herstellung eines Aluminatleuchtstoffs | |
| DE2928245C2 (de) | Europium aktivierter Bariumcalciumerdalkalifluorhalogenid-Leuchtstoff | |
| DE1952309A1 (de) | Gasreaktionsverfahren zur Herstellung von Leuchtstoffen aus Oxyhalogeniden und Oxiden des Yttrium und der Seltenen Erden | |
| DE3326921A1 (de) | Gruenes licht aussendende phosphoreszenzfaehige stoffe und niederdruck-quecksilberdampflampe, in der diese stoffe verwendet werden | |
| DE2542481C3 (de) | Erdalkalifluorhalogenid-Leuchtstoff | |
| DE1951953A1 (de) | Verfahren zur Herstellung von Leuchtstoffen aus Oxyhalogeniden und Oxiden des Yttriam und der Seltenen Erden | |
| DE2300928C3 (de) | Röntgenverstarkerschirm | |
| DE68906197T2 (de) | Lichterregbarer leuchtstoff und radiographische anwendung. | |
| DE69923826T2 (de) | Verfahren zur Herstellung eines Phosphors | |
| DE2018354C3 (de) | Elektrolumineszente Einrichtung | |
| DE2161958B2 (de) | Leuchtstoffe aus Oxyhalogeniden seltener Erden | |
| DE3014355C2 (de) | ||
| DE68905107T2 (de) | Reproduktion von roentgenbildern mit einem photostimulierbaren leuchtstoff. | |
| DE69326155T2 (de) | Röntgenstrahlenverstärkungsschirmen und Verfahren zu ihrer Herstellung | |
| EP1527150A2 (de) | Verfahren zur bedampfung eines trägers mit einem nadelförmigen röntgenleuchtstoff sowie röntgenleuchtstoff | |
| DE2628346A1 (de) | Leuchtstoffzusammensetzung und verfahren zu ihrer herstellung | |
| WO2002081591A1 (de) | Strahlungswandler und verfahren zur herstellung desselben | |
| DE10234732A1 (de) | Herstellung einer Strahlungsbild-Speicherplatte | |
| DE2541748B2 (de) | Verfahren zur herstellung eines mit zweiwertigem europium aktivierten erdalkalifluorhalogenidleuchtstoffs | |
| DE10235051B4 (de) | Verfahren zur Bedampfung eines Trägers mit einem Röntgenleuchtstoff | |
| DE68913253T2 (de) | Magnesium-Tantal-Oxid-Röntgenstrahlen-Intensivierungsschirm. | |
| JPH0152432B2 (de) | ||
| DE3726647C2 (de) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20041216 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RBV | Designated contracting states (corrected) |
Designated state(s): BE DE FR GB |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KNUEPFER, WOLFGANG Inventor name: ROEHRER, PETER Inventor name: MATTERN, DETLEF Inventor name: FUCHS, MANFRED Inventor name: HELL, ERICH |
|
| 17Q | First examination report despatched |
Effective date: 20090127 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20090807 |