JPH09503855A - パルス式低周波epr分光計および撮像装置 - Google Patents
パルス式低周波epr分光計および撮像装置Info
- Publication number
- JPH09503855A JPH09503855A JP7505375A JP50537595A JPH09503855A JP H09503855 A JPH09503855 A JP H09503855A JP 7505375 A JP7505375 A JP 7505375A JP 50537595 A JP50537595 A JP 50537595A JP H09503855 A JPH09503855 A JP H09503855A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- frequency
- resonator
- carrier signal
- wideband
- 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.)
- Granted
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/60—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using electron paramagnetic resonance
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.励起信号を受信するための共鳴器を有し、かつ水様試料による吸収が大きく ない選択したRF共鳴周波数において共鳴する電子を含む水様試料を含む電子常 磁性共鳴システム用の改善されたシステムにおいて、 前記選択したRF共鳴周波数にほぼ等しい周波数を有する無線周波数(RF) 搬送信号を供給する手段と、 前記RF搬送信号を受信して、RF搬送信号パルスを形成するように結合され た入力を有するパルス形成手段と、 前記RF搬送信号パルスを受信し、前記RF搬送周波数パルスを周波数変調し て、所定の帯域幅を有する広帯域パルスを形成するように結合された周波数変調 手段と、 前記広帯域パルスを受信し、前記広帯域パルスを圧縮して、時間遅延が短く、 帯域幅が前記広帯域パルスとほぼ同じである圧縮された広帯域パルスを形成する パルス圧縮手段と、 前記水様試料が前記圧縮パルスによって励起されるように、前記圧縮パルスを 前記共鳴器に結合する手段とを含むシステム。 2.前記パルス形成手段が、 前記RF搬送信号パルスを受信するように結合されたRF減衰器および位相シ フタと、 前記RF搬送信号パルスを開始し終了するスイッチとを含む請求項1に記載の システム。 3.前記パルス形成手段が、 前記RF搬送信号パルスを開始終端するデジタル遅延線パルス発生器を含むこ とを特徴とする、請求の範囲第1項に記載のシステム。 4.前記周波数変調手段とパルス圧縮手段が表面音波遅延線である請求項1に記 載のシステム。 5.前記共鳴器が、 ほぼ円筒形の共鳴器胴体と、 前記共鳴器のRF共鳴周波数を選択するために前記共鳴器胴体から調整可能な 間隔で分離された導電キャップとを含む請求項1に記載のシステム。 6.励起信号を受信するための共鳴器を有し、かつ水様試料による吸収が大きく ない選択したRF共鳴周波数において共鳴する電子を含む水様試料を含む電子常 磁性共鳴システム用の改善されたシステムにおいて、 前記選択したRF共鳴周波数にほぼ等しい周波数を有する無線周波数(RF) 搬送信号を供給する手段と、 前記RF搬送信号を受信するように結合され、複数の並列経路を含み、各並列 経路に沿って、選択したタイミングと位相の関係を有する別個の圧縮された励起 パルスを発生させるパルス発生網と、 前記水様試料が前記圧縮された励起パルスによって励起されるように、前記別 個の圧縮された励起パルスを前記共鳴器に結合する手段とを含み、 前記並列経路がそれぞれ、 直列に接続された広帯域周波数変調手段と整合フィルタ・パルス圧縮手段を含 むシステム。 7.さらに、前記並列経路が、 前記RF搬送信号を受信するように結合されたRF減衰器および位相シフタと 、 前記RF搬送信号パルスを開始し終了するスイッチとを含む請求項6に記載の システム。 8.入力が前記供給手段に結合され、かつ出力が前記広帯域周波数変調手段に結 合された、RF搬送信号パルスを開始し終了するデジタル遅延線パルス発生器を さらに含む請求項6に記載のシステム。 9.前記周波数変調手段とパルス圧縮手段が表面音波遅延線である請求項6に記 載のシステム。 10.前記共鳴器が、 ほぼ円筒形の共鳴器胴体と、 前記共鳴器のRF共鳴周波数を選択するために前記共鳴器胴体から調整可能な 間隔で分離された導電キャップとを含む請求項6に記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/097,811 | 1993-07-26 | ||
US08/097,811 US5387867A (en) | 1993-07-26 | 1993-07-26 | Pulsed low frequency EPR spectrometer and imager |
PCT/US1994/008373 WO1995003551A1 (en) | 1993-07-26 | 1994-07-25 | Pulsed low frequency epr spectrometer and imager |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09503855A true JPH09503855A (ja) | 1997-04-15 |
JP3590059B2 JP3590059B2 (ja) | 2004-11-17 |
Family
ID=22265235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50537595A Expired - Fee Related JP3590059B2 (ja) | 1993-07-26 | 1994-07-25 | 電子常磁性共鳴システム |
Country Status (9)
Country | Link |
---|---|
US (2) | US5387867A (ja) |
EP (1) | EP0711418B1 (ja) |
JP (1) | JP3590059B2 (ja) |
AT (1) | ATE158084T1 (ja) |
AU (1) | AU683915B2 (ja) |
CA (1) | CA2166068C (ja) |
DE (1) | DE69405571T2 (ja) |
ES (1) | ES2106555T3 (ja) |
WO (1) | WO1995003551A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5387867A (en) * | 1993-07-26 | 1995-02-07 | The United States Of America As Represented By The Dept. Of Health And Human Services | Pulsed low frequency EPR spectrometer and imager |
US5678548A (en) * | 1995-07-20 | 1997-10-21 | The United States Of America As Represented By The Department Of Health And Human Services | System and method for performing in vivo imaging and oxymetry and FT microscopy by pulsed radiofrequency electron paramagnetic resonance |
US5828216A (en) * | 1996-08-19 | 1998-10-27 | The United States Of America As Represented By The Department Of Health And Human Services | Gated RF preamplifier for use in pulsed radiofrequency electron paramagnetic resonance and MRI |
CA2290626A1 (en) * | 1997-05-27 | 1998-12-03 | Murali K. Cherukuri | Resonant structure for spatial and spectral-spatial imaging of free radical spin probes using radiofrequency time domain electron paramagnetic resonance spectroscopy |
EP1226449A1 (en) * | 1999-11-01 | 2002-07-31 | THE GOVERNMENT OF THE UNITED STATES OF AMERICA, as represented by THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES | An integrated low field mri/rf epri for co-registering imaging of in vivo physiology and anatomy in living objects |
DE10148462C1 (de) * | 2001-10-01 | 2003-06-18 | Siemens Ag | Übertragungsverfahren für ein analoges Magnetresonanzsignal und hiermit korrespondierende Einrichtungen |
US6825660B2 (en) * | 2002-04-26 | 2004-11-30 | Ge Medical Systems Global Technology Company, Llc | Degenerate birdcage resonator for magnetic resonance imaging |
US7403008B2 (en) * | 2004-08-02 | 2008-07-22 | Cornell Research Foundation, Inc. | Electron spin resonance microscope for imaging with micron resolution |
EP2331982B1 (en) * | 2008-09-30 | 2018-11-14 | IMEC vzw | Pulsed epr detection |
US8604791B2 (en) * | 2010-09-09 | 2013-12-10 | Life Services, LLC | Active transmit elements for MRI coils and other antenna devices |
DE102012211312A1 (de) * | 2012-06-29 | 2014-01-02 | Siemens Aktiengesellschaft | Verfahren zum gleichzeitigen Übertragen von mindestens zwei hochfrequenten Übertragungssignalen über eine gemeinsame Hochfrequenzleitung, Signalübertragungsvorrichtung und Magnetresonanztomograph |
RU2593238C2 (ru) * | 2014-12-30 | 2016-08-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный университет имени М.В. Ломоносова" (МГУ) | Устройство для исследования воздействия низкочастотного магнитного поля на кинетику биохимических процессов в биологических системах, содержащих магнитные наночастицы |
US10324146B2 (en) | 2016-01-12 | 2019-06-18 | Life Services, LLC | Method and apparatus for multi-part body coil |
RU2634076C1 (ru) * | 2016-07-28 | 2017-10-23 | Федеральное государственное бюджетное учреждение науки Физико-технический институт им. А.Ф. Иоффе Российской академии наук | Спектрометр электронного парамагнитного резонанса |
RU2634075C1 (ru) * | 2016-09-05 | 2017-10-23 | Федеральное государственное бюджетное учреждение науки Физико-технический институт им. А.Ф. Иоффе Российской академии наук | Спектрометр электронного парамагнитного резонанса |
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-
1993
- 1993-07-26 US US08/097,811 patent/US5387867A/en not_active Expired - Lifetime
-
1994
- 1994-07-25 CA CA002166068A patent/CA2166068C/en not_active Expired - Fee Related
- 1994-07-25 AU AU73727/94A patent/AU683915B2/en not_active Ceased
- 1994-07-25 AT AT94922719T patent/ATE158084T1/de active
- 1994-07-25 WO PCT/US1994/008373 patent/WO1995003551A1/en active IP Right Grant
- 1994-07-25 JP JP50537595A patent/JP3590059B2/ja not_active Expired - Fee Related
- 1994-07-25 EP EP94922719A patent/EP0711418B1/en not_active Expired - Lifetime
- 1994-07-25 ES ES94922719T patent/ES2106555T3/es not_active Expired - Lifetime
- 1994-07-25 DE DE69405571T patent/DE69405571T2/de not_active Expired - Fee Related
- 1994-11-15 US US08/340,100 patent/US5502386A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69405571T2 (de) | 1998-03-19 |
US5387867A (en) | 1995-02-07 |
AU7372794A (en) | 1995-02-20 |
CA2166068A1 (en) | 1995-02-02 |
CA2166068C (en) | 2003-02-11 |
EP0711418A1 (en) | 1996-05-15 |
JP3590059B2 (ja) | 2004-11-17 |
EP0711418B1 (en) | 1997-09-10 |
WO1995003551A1 (en) | 1995-02-02 |
ES2106555T3 (es) | 1997-11-01 |
ATE158084T1 (de) | 1997-09-15 |
US5502386A (en) | 1996-03-26 |
AU683915B2 (en) | 1997-11-27 |
DE69405571D1 (de) | 1997-10-16 |
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