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1. WO2011093140 - RADIATION IMAGE CONVERSION PANEL

Publication Number WO/2011/093140
Publication Date 04.08.2011
International Application No. PCT/JP2011/050460
International Filing Date 13.01.2011
IPC
G21K 4/00 2006.1
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
KTECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
4Conversion screens for the conversion of the spatial distribution of particles or ionising radiation into visible images, e.g. fluoroscopic screens
G01T 1/20 2006.1
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
CPC
C09K 11/628
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
08containing inorganic luminescent materials
62containing gallium, indium or thallium
626Halogenides
628with alkali or alkaline earth metals
C09K 11/7733
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
08containing inorganic luminescent materials
77containing rare earth metals
7728containing europium
7732Halogenides
7733with alkali or alkaline earth metals
G01T 1/201
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
201using scintillating fibres
G01T 1/2012
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
2012using stimulable phosphors, e.g. stimulable phosphor sheets
G01T 1/202
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
202the detector being a crystal
G01T 1/2921
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
29Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
2914Measurement of spatial distribution of radiation
2921Static instruments for imaging the distribution of radioactivity in one or two dimensions; Radio-isotope cameras
Applicants
  • 浜松ホトニクス株式会社 HAMAMATSU PHOTONICS K.K. [JP]/[JP] (AllExceptUS)
  • 大澤 弘武 OSAWA Hirotake [JP]/[JP] (UsOnly)
  • 外山 真太郎 TOYAMA Shintaro [JP]/[JP] (UsOnly)
  • 楠山 泰 KUSUYAMA Yutaka [JP]/[JP] (UsOnly)
  • 山下 雅典 YAMASHITA Masanori [JP]/[JP] (UsOnly)
  • 式田 宗功 SHIKIDA Munenori [JP]/[JP] (UsOnly)
Inventors
  • 大澤 弘武 OSAWA Hirotake
  • 外山 真太郎 TOYAMA Shintaro
  • 楠山 泰 KUSUYAMA Yutaka
  • 山下 雅典 YAMASHITA Masanori
  • 式田 宗功 SHIKIDA Munenori
Agents
  • 長谷川 芳樹 HASEGAWA Yoshiki
Priority Data
2010-01854829.01.2010JP
2010-01856329.01.2010JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) RADIATION IMAGE CONVERSION PANEL
(FR) PANNEAU DE CONVERSION D'IMAGE DE RAYONNEMENT
(JA) 放射線像変換パネル
Abstract
(EN) Disclosed is a radiation image conversion panel which has improved optical output and resolution. Specifically disclosed is a radiation image conversion panel (1) which comprises an FOP (2), a heat-resistant resin layer (3) that is formed on a surface (2a) of the FOP (2), and a scintillator (4) that is composed of a columnar crystal and formed on a surface (3a) of the heat-resistant resin layer (3) by vapor deposition, said surface (3a) being on the reverse side of the FOP (2)-side surface. The radiation image conversion panel (1) is characterized in that the surface energy of the surface (3a) of the heat-resistant resin layer (3) is set to be 20 mN/m or more but less than 35 mN/m. As a result, the base portion of the scintillator (4) has good crystallinity and deterioration in transmittance or scattering of scintillation light at the base portion of the scintillator (4) can be suppressed.
(FR) La présente invention concerne un panneau de conversion d'image de rayonnement qui présente une sortie optique et une résolution améliorées. L'invention concerne spécifiquement un panneau de conversion d'image de rayonnement (1) qui comprend un FOP (2), une couche de résine thermorésistante (3) qui est formée sur une surface (2a) du FOP (2), et un scintillateur (4) qui est composé d'un cristal colonnaire et formé sur une surface (3a) de la couche de résine thermorésistante (3) par dépôt en phase vapeur, ladite surface (3a) se trouvant sur le côté opposé de la surface de côté FOP (2). Le panneau de conversion d'image de rayonnement (1) est caractérisé en ce que l'énergie de surface de la surface (3a) de la couche de résine thermorésistante (3) est fixée à 20 mN/m ou plus, mais à moins de 35 mN/m. Ainsi, la partie de base du scintillateur (4) présente une bonne cristallinité, et une dégradation de la transmittance ou de la diffusion de la lumière de scintillation au niveau de la partie de base du scintillateur (4) peut être supprimée.
(JA)  光出力及び解像度を向上させることができる放射線像変換パネルを提供する。放射線像変換パネル1は、FOP2と、FOP2の表面2a上に形成された耐熱性樹脂層3と、耐熱性樹脂層3においてFOP2と反対側の表面3aに蒸着形成され柱状結晶からなるシンチレータ4と、を備えている。この放射線像変換パネル1では、耐熱性樹脂層3の表面3aの表面エネルギは、20[mN/m]以上35[mN/m]未満とされている。これにより、シンチレータ4の根元部の結晶性が良好なものとし、シンチレータ4の根元部でのシンチレーション光の通過性悪化及び散乱を抑制することができる。
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