JP4906322B2 - 酸化物蛍光体、放射線検出器およびｘ線ｃｔ装置 - Google Patents
酸化物蛍光体、放射線検出器およびｘ線ｃｔ装置 Download PDFInfo
- Publication number
- JP4906322B2 JP4906322B2 JP2005339010A JP2005339010A JP4906322B2 JP 4906322 B2 JP4906322 B2 JP 4906322B2 JP 2005339010 A JP2005339010 A JP 2005339010A JP 2005339010 A JP2005339010 A JP 2005339010A JP 4906322 B2 JP4906322 B2 JP 4906322B2
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- Prior art keywords
- radiation detector
- scintillator
- phosphor
- radiation
- 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.)
- Expired - Fee Related
Links
- 230000005855 radiation Effects 0.000 title claims description 57
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims description 46
- 239000000843 powder Substances 0.000 claims description 35
- 239000013078 crystal Substances 0.000 claims description 30
- 150000001875 compounds Chemical class 0.000 claims description 25
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 229910052733 gallium Inorganic materials 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 239000002223 garnet Substances 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000011780 sodium chloride Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 description 24
- 238000000034 method Methods 0.000 description 18
- 239000000919 ceramic Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 16
- 230000007423 decrease Effects 0.000 description 9
- 239000000654 additive Substances 0.000 description 8
- 230000000996 additive effect Effects 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000011812 mixed powder Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000001513 hot isostatic pressing Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910020203 CeO Inorganic materials 0.000 description 2
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 2
- 229910020335 Na3 PO4.12H2 O Inorganic materials 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000009694 cold isostatic pressing Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010893 electron trap Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Measurement Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Luminescent Compositions (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005339010A JP4906322B2 (ja) | 2005-11-24 | 2005-11-24 | 酸化物蛍光体、放射線検出器およびｘ線ｃｔ装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005339010A JP4906322B2 (ja) | 2005-11-24 | 2005-11-24 | 酸化物蛍光体、放射線検出器およびｘ線ｃｔ装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007145902A JP2007145902A (ja) | 2007-06-14 |
| JP2007145902A5 JP2007145902A5 (de) | 2008-12-25 |
| JP4906322B2 true JP4906322B2 (ja) | 2012-03-28 |
Family
ID=38207707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005339010A Expired - Fee Related JP4906322B2 (ja) | 2005-11-24 | 2005-11-24 | 酸化物蛍光体、放射線検出器およびｘ線ｃｔ装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4906322B2 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012057133A1 (ja) | 2010-10-29 | 2012-05-03 | 日立金属株式会社 | 軟x線検出用多結晶シンチレータ |
| WO2012133796A1 (ja) * | 2011-03-31 | 2012-10-04 | 国立大学法人北海道大学 | シンチレータプレート、放射線計測装置、放射線イメージング装置およびシンチレータプレート製造方法 |
| WO2014171985A2 (en) * | 2013-01-23 | 2014-10-23 | University Of Tennessee Research Foundation | Codoping method for modifying the scintillation and optical properties of garnet-type scintillators |
| JP6186732B2 (ja) * | 2013-01-29 | 2017-08-30 | 堺化学工業株式会社 | 応力発光材料用組成物の製造方法、その製造方法によって得られる応力発光材料用組成物、及びその組成物から製造した応力発光材料 |
| JP2019196441A (ja) * | 2018-05-09 | 2019-11-14 | 株式会社日立ハイテクノロジーズ | 蛍光体、光源および生化学分析装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6045676B2 (ja) * | 1979-04-02 | 1985-10-11 | 大日本塗料株式会社 | 螢光体の製造方法 |
| JPS62195078A (ja) * | 1986-02-21 | 1987-08-27 | Nichia Kagaku Kogyo Kk | 希土類ガ−ネツト螢光体及びその製造方法 |
| JPH05140552A (ja) * | 1991-11-18 | 1993-06-08 | Hitachi Ltd | 蛍光体及びその製造方法 |
| US6458295B1 (en) * | 1997-12-24 | 2002-10-01 | Hitachi Medical Corporation | Phosphors, and radiation detectors and X-ray CT unit made by using the same |
| JPH11293242A (ja) * | 1998-04-06 | 1999-10-26 | Hitachi Ltd | 赤色発光蛍光体とその製造方法およびこの蛍光体を用いた陰極線管 |
| JP2003027057A (ja) * | 2001-07-17 | 2003-01-29 | Hitachi Ltd | 光源およびそれを用いた画像表示装置 |
-
2005
- 2005-11-24 JP JP2005339010A patent/JP4906322B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007145902A (ja) | 2007-06-14 |
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