JP5457635B2 - 計算機式断層写真法検出器及びその製造方法 - Google Patents
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/24—Measuring radiation intensity with semiconductor detectors
- G01T1/249—Measuring radiation intensity with semiconductor detectors specially adapted for use in SPECT or PET
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/24—Measuring radiation intensity with semiconductor detectors
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Measurement Of Radiation (AREA)
- Light Receiving Elements (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Description
12 ガントリ
14 X線源
16 X線のビーム
17 レール
18 検出器アセンブリ又はコリメータ
19 コリメート用ブレード又はプレート
20 複数の検出器
22 患者
24 回転中心
26 制御機構
28 X線制御器
30 ガントリ・モータ制御器
32 データ取得システム(DAS)
34 画像再構成器
36 コンピュータ
38 大容量記憶装置
40 コンソールを介した操作者
42 キーボード。付設されている陰極線管表示器
44 テーブル・モータ制御器
46 電動テーブル
48 ガントリ開口
50 素子
51 パック
52 ピン
53 ダイオード・アレイ
54 多層基材
55 スペーサ
56 フレックス回路
57 表面
59 ダイオード
98 X線検出器の部分
100 半導体層
101 直接変換物質
102 金属化接点
104 表面
108 金属化表面
110 X線を減弱するグリッド・アセンブリ
111 外周フレーム
113 外周
114、116 複数の棒材又は桟材
115 開口
118 絶縁アセンブリ
119 高電圧絶縁物質
120 高電圧電極
121 ワイヤ
122 構造又は支持材
123 高圧電源
124 電荷共有領域
125 間隙
127 外周
128 散乱線除去アセンブリ
131 支持ワイヤ
140 散乱線除去グリッド・アセンブリ
141 第一の複数のブレード
142 第二の複数の平行ブレード
150 グリッド・アセンブリ・パターン
152 ピクセル・パターン
160 1対4のグリッド・アセンブリ・パターン
162 ピクセル・パターン
172 高分解能ピクセル・パターン
170 グリッド・アセンブリ・パターン
174 パターン
176 開口
510 小荷物/手荷物検査システム
512 回転ガントリ
514 開口
516 高周波電磁エネルギ源
518 検出器アセンブリ
520 コンベヤ・システム
522 コンベヤ・ベルト
524 構造
526 小荷物又は手荷物
Claims (10)
- 二次元アレイに配列された複数の金属化アノード(102)であって、各々の金属化アノード(102)が間隙(125)により他の金属化アノード(102)から離隔されている、複数の金属化アノード(102)と、
該複数の金属化アノード(102)に電気的に結合されている直接変換物質(101)であって、当該直接変換物質(101)に入射するX線により発生される電荷が前記複数の金属化アノード(102)の少なくとも2個の間で共有される複数の電荷共有領域(124)を有する直接変換物質(101)と、
前記電荷共有領域(124)に向かうX線を減弱するように配置されているX線減弱物質(110)の交差する桟材(114、116)の二次元グリッドと、
前記X線減弱物質(110)と前記直接変換物質(101)との間に配置された高電圧絶縁物質(119)と、
前記高電圧物質(119)と前記直接変換物質(101)との間に配置されており、前記高電圧絶縁物質(119)の表面に付着され、高圧電源(123)に電気的に接続されたワイヤ(121)を含む金属化表面(120)と、
前記直接変換物質(101)と前記X線減弱物質(110)との間に配置されており、前記直接変換物質(101)の表面に付着されており、前記金属化表面(120)と電気的に接続される高電圧電極(108)と、
を備えた計算機式断層写真法(CT)検出器。 - 前記X線減弱物質(110)は、タングステン、モリブデン、鉛、並びにタングステン、モリブデン及び鉛の一つで充填されたポリマーである、請求項1に記載の計算機式断層写真法検出器。
- 前記直接変換物質(101)の外周(113)に向かうX線を減弱する外周フレーム(111)をさらに含んでいる請求項1または2に記載の計算機式断層写真法検出器。
- 前記金属化表面(120)が数百オングストロームの厚さを持ち、
前記高電圧電極(108)が数百オングストロームの厚さを持つ、請求項1乃至3のいずれかに記載の計算機式断層写真法検出器。 - 隣り合った前記桟材(114、116)の間に配置されている前記桟材(114、116)のX線減弱性よりも低いX線減弱性の構造材(122)を含んでいる、請求項1乃至4のいずれかに記載の計算機式断層写真法検出器。
- 前記二次元グリッド(110)の前記桟材(114、116)に実質的に整列しているプレート(19)の二次元パターンを有する散乱線除去コリメータ(128)をさらに含んでいる請求項5に記載の計算機式断層写真法検出器。
- 焦点スポットと、対応する電荷共有領域(124)との間に延在する射線と同一線上に各々配置されている複数の散乱線除去ブレード(19)をさらに含んでいる請求項5に記載の計算機式断層写真法検出器。
- 前記二次元グリッド(110)は、前記複数の金属化アノード(102)により形成される間隙(152)のパターンに実質的に一致するパターン(150)を形成する、請求項5に記載の計算機式断層写真法検出器。
- 前記グリッドにより形成される複数の開口(176)の各々が、前記直接変換物質(101)の4個のピクセル(102)を包含する、請求項8に記載の計算機式断層写真法検出器。
- 請求項1乃至9のいずれかに記載の計算機式断層写真法検出器を製造する方法であって、
前記複数の金属化アノード(102)を前記直接変換物質(101)の表面(104)に付着する段階と、
前記高電圧電極(108)を前記直接変換物質(101)に付着させる段階と、
前記金属化表面(120)を前記高電圧物質(119)に付着させる段階と、
前記金属化表面(120)を前記高電圧電極(108)に電気的に接続する段階と、
前記X線減弱物質を前記高電圧絶縁物質(119)の上に配置する段階と、
を含む方法。
Applications Claiming Priority (2)
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US11/625,969 | 2007-01-23 | ||
US11/625,969 US7486764B2 (en) | 2007-01-23 | 2007-01-23 | Method and apparatus to reduce charge sharing in pixellated energy discriminating detectors |
Publications (3)
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JP2008180713A JP2008180713A (ja) | 2008-08-07 |
JP2008180713A5 JP2008180713A5 (ja) | 2012-11-08 |
JP5457635B2 true JP5457635B2 (ja) | 2014-04-02 |
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Country Status (3)
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US (1) | US7486764B2 (ja) |
JP (1) | JP5457635B2 (ja) |
DE (1) | DE102008004748A1 (ja) |
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DE102011013058A1 (de) * | 2011-03-04 | 2012-09-06 | Helmholtz Zentrum München Deutsches Forschungszentrum Für Gesundheit Und Umwelt (Gmbh) | Röntgenkamera zur ortsaufgelösten Detektion von Röntgenstrahlung |
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2007
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2008
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DE102008004748A1 (de) | 2008-07-24 |
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