JP6050455B2 - 勾配付き多層光学装置を用いたファン形x線ビーム・イメージング・システム - Google Patents
勾配付き多層光学装置を用いたファン形x線ビーム・イメージング・システム Download PDFInfo
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Classifications
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- 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
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/06—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diffraction, refraction or reflection, e.g. monochromators
- G21K1/062—Devices having a multilayer structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
- A61B6/4078—Fan-beams
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/48—Diagnostic techniques
- A61B6/482—Diagnostic techniques involving multiple energy imaging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
-
- 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
- G21K2201/00—Arrangements for handling radiation or particles
- G21K2201/06—Arrangements for handling radiation or particles using diffractive, refractive or reflecting elements
- G21K2201/064—Arrangements for handling radiation or particles using diffractive, refractive or reflecting elements having a curved surface
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Pulmonology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Engineering & Computer Science (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- X-Ray Techniques (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
複合層=f(z)M1+[1−f(z)]M2 (13)
によって表現され得る。
式中、f(z)は、例えば線形関数、多項式関数、又は対数単調関数であって、成分物質M1及びM2の分率値を指定している。このように、単調関数は、隣り合った二つの勾配層624−1と624−3との間での成分物質M1及びM2の相対比の滑らかな組成変化を生成する。
102:第一の層
104:第Nの層
106:第二の層
108:第(N−1)の層
110:勾配帯
112:フォトン
114:臨界角
116、118、120、122:境界面
140:単一の勾配付き多層区画
142:高屈折率層
144:低屈折率層
152、154、156:複数の勾配層
158:勾配帯
162:第一の反射面
164:第二の反射面
166:第三の反射面
168:第四の反射面
170:X線放射線源
172:発散性X線放射線ビーム
172−0、172−1、172−2、172−3、172−4:発散性X線ビームレット
174:方向転換区画
176:コリメーション区画
178:コリメートされたビーム
178−0、178−1、178−2、178−3、178−4:X線ビームレット
182a、184a、186a:初期反射点
182b、184b、186b:最終反射点
200:光学装置
206:高屈折率層
210:さらに大型の光学装置
215:方向転換区画
212−1、212−N:複数の多層帯
244:コア層
248:平坦面
260:光学装置
262−1、262−N:複数の多層帯
400:光学装置
402:勾配帯
414、416、418:彎曲した反射境界面
450:光学装置
452:第一の方向転換区画
454:包囲されたコリメーション区画
456:第二の方向転換区画
462:低屈折率層
470:勾配付き多層光学装置
472:ファン形ビーム
474:一次元アレイ
476:円形断面光学系
474:円形断面光学系のアレイ
476:円形断面光学系
478:不連続な円筒形ビーム
570:勾配付き多層物質積層体
572−1、572−2:勾配付き多層区画
574:高屈折率層
576:低屈折率層
580:高反射率勾配帯
582:第一の勾配層
584:第二の勾配層
586:第三の勾配層
592:高屈折率勾配層
594:第二の高屈折率勾配層
600:勾配付き多層物質積層体
602−1、602−2:多層区画
604:勾配帯
604−1、604−2、604−3:勾配層
612、614、616、618:勾配副次層
620:勾配付き多層物質積層体
622−1、622−2、622−N:勾配付き多層区画
624:勾配帯
624−2:複合勾配層
626、627:低屈折率層
700:取得システム
702:スキャナ
704:テーブル
706:放射線源制御器
708:テーブル制御器
710:データ取得制御器
712:システム制御器
714:操作者インタフェイス
716:メモリ装置
718:遠隔インタフェイス
724:ターゲット
725:焦点スポット
733、734:X線
Claims (2)
- 1又は複数のファン形ビームを発生する多重エネルギX線イメージング・システムであって、
電子発生源と、
該電子発生源からの電子により衝突されるとX線を形成するターゲットと、
該ターゲットを収容する真空室と、
前記X線が前記真空室を出るときに通る窓と、
前記1又は複数のファン形ビームを発生するのに望ましい範囲のX線エネルギを伝達するように構成されている少なくとも一つの勾配付き多層光学装置と
を備えており、該少なくとも一つの勾配付き多層光学装置は、
全反射を通じて第一の光学X線を方向転換させる第一の光学部分と、
前記第一の光学X線とは異なる平均エネルギ・レベルにある第二の光学X線を方向転換させる第二の光学部分と
を含んでおり、
前記第一の光学部分は、高い平均エネルギのスペクトルを発生するように構成されており、
前記第二の光学部分は、低い平均エネルギのスペクトル向けに構成されており、
前記第一の光学的エネルギ・スペクトルの前記平均エネルギは、前記第二の光学的エネルギ・スペクトルの前記平均エネルギ以上である、多重エネルギX線イメージング・システム。 - 対象を撮像する方法であって、
少なくとも一つの電子ビーム放出器から少なくとも一つのターゲット焦点スポットを有するターゲットへ向けて電子ビームを放出するステップと、
前記電子ビームにより衝突されるのに応答して前記ターゲットからX線を発生するステップと、
前記X線を1又は複数のファン形ビームとして形成するステップであって、該ファン形ビームは、当該1又は複数の勾配付き多層光学装置の少なくとも一つが前記少なくとも一つのターゲット焦点スポットと光学的に連絡するように配置されている1又は複数の勾配付き多層光学装置を通じた前記X線の全反射を介して発生される、形成するステップと、
前記1又は複数の勾配付き多層光学装置を介して伝達される前記放出X線を用いることにより前記対象の画像を形成するステップと
を備え、
前記第一の光学部分は、高い平均エネルギのスペクトルを発生するように構成されており、
前記第二の光学部分は、低い平均エネルギのスペクトル向けに構成されており、
前記第一の光学的エネルギ・スペクトルの前記平均エネルギは、前記第二の光学的エネルギ・スペクトルの前記平均エネルギ以上である、
方法。
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US12/871,484 | 2010-08-30 | ||
US12/871,484 US8311184B2 (en) | 2010-08-30 | 2010-08-30 | Fan-shaped X-ray beam imaging systems employing graded multilayer optic devices |
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JP2011185511A Division JP5923257B2 (ja) | 2010-08-30 | 2011-08-29 | 勾配付き多層光学装置を用いたファン形x線ビーム・イメージング・システム |
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JP6050455B2 true JP6050455B2 (ja) | 2016-12-21 |
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JP2015190569A Expired - Fee Related JP6050455B2 (ja) | 2010-08-30 | 2015-09-29 | 勾配付き多層光学装置を用いたファン形x線ビーム・イメージング・システム |
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US (1) | US8311184B2 (ja) |
JP (2) | JP5923257B2 (ja) |
DE (1) | DE102011053081B4 (ja) |
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2010
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JP2012049134A (ja) | 2012-03-08 |
JP2016026647A (ja) | 2016-02-18 |
DE102011053081B4 (de) | 2020-11-26 |
US20120051499A1 (en) | 2012-03-01 |
DE102011053081A1 (de) | 2012-03-01 |
US8311184B2 (en) | 2012-11-13 |
JP5923257B2 (ja) | 2016-05-24 |
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