SE7900767L - Sett och apparat for bestemning av slumpkoincidensreknefrekvens i en scintillationsrekanre i vilken utnyttjas koincidensteknink - Google Patents
Sett och apparat for bestemning av slumpkoincidensreknefrekvens i en scintillationsrekanre i vilken utnyttjas koincidenstekninkInfo
- Publication number
- SE7900767L SE7900767L SE7900767A SE7900767A SE7900767L SE 7900767 L SE7900767 L SE 7900767L SE 7900767 A SE7900767 A SE 7900767A SE 7900767 A SE7900767 A SE 7900767A SE 7900767 L SE7900767 L SE 7900767L
- Authority
- SE
- Sweden
- Prior art keywords
- coincidence
- random
- attributable
- detector
- scintillation
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 230000003111 delayed effect Effects 0.000 abstract 2
- 230000008030 elimination Effects 0.000 abstract 2
- 238000003379 elimination reaction Methods 0.000 abstract 2
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
- G01T1/17—Circuit arrangements not adapted to a particular type of detector
- G01T1/172—Circuit arrangements not adapted to a particular type of detector with coincidence circuit arrangements
Landscapes
- 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)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/873,318 US4181855A (en) | 1978-01-30 | 1978-01-30 | Method and apparatus for determining random coincidence count rate in a scintillation counter utilizing the coincidence technique |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7900767L true SE7900767L (sv) | 1979-07-31 |
SE435764B SE435764B (sv) | 1984-10-15 |
Family
ID=25361395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7900767A SE435764B (sv) | 1978-01-30 | 1979-01-29 | Sett att vid en scintillationsreknare bestemma ett slumpkoincidensreknetal, samt apparat avsedd att anvendas for settet |
Country Status (8)
Country | Link |
---|---|
US (1) | US4181855A (sv) |
BE (1) | BE873758A (sv) |
CH (1) | CH631551A5 (sv) |
DE (1) | DE2903050A1 (sv) |
FR (1) | FR2415818A1 (sv) |
GB (1) | GB2013880B (sv) |
NL (1) | NL7900685A (sv) |
SE (1) | SE435764B (sv) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2447558A1 (fr) * | 1979-01-26 | 1980-08-22 | Commissariat Energie Atomique | Dispositif de visualisation d'un corps par detection du rayonnement d'un traceur contenu dans ce corps |
US4284890A (en) * | 1979-08-27 | 1981-08-18 | Montreal Neurological Institute | Coincidence analysis circuit for positron annihilation imaging device |
CA1149972A (en) * | 1979-10-18 | 1983-07-12 | Michael E. Phelps | Emission tomography system |
US4421986A (en) * | 1980-11-21 | 1983-12-20 | The United States Of America As Represented By The Department Of Health And Human Services | Nuclear pulse discriminator |
US4395635A (en) * | 1981-01-26 | 1983-07-26 | The United States Of America As Represented By The Department Of Health And Human Services | Gamma ray coincidence analysis system |
US4408297A (en) * | 1981-02-11 | 1983-10-04 | Theodosiou George E | Reduction in maximum time uncertainty of paired time signals |
US4418282A (en) * | 1981-06-29 | 1983-11-29 | Beckman Instruments, Inc. | Method and apparatus for determining random coincidence count rate in a scintillation counter utilizing the coincidence technique |
US4559597A (en) * | 1982-07-07 | 1985-12-17 | Clayton Foundation For Research | Three-dimensional time-of-flight positron emission camera system |
SE445495B (sv) * | 1984-11-09 | 1986-06-23 | Wallac Oy | Vetskescintillationsreknare |
US4651006A (en) * | 1985-04-08 | 1987-03-17 | Packard Instrument Company, Inc. | Reduced background scintillation counting |
US5146093A (en) * | 1985-04-08 | 1992-09-08 | Packard Instrument Company, Inc. | Liquid scintillation measurement system with active guard shield |
US4748348A (en) * | 1986-12-29 | 1988-05-31 | Tektronix, Inc. | Multi-level pattern detector for a single signal |
CA1280224C (en) * | 1987-08-27 | 1991-02-12 | Daniel Gagnon | Method and circuit for processing narrow band signals located in a wide band having disturbance |
FI902332A (fi) * | 1990-05-10 | 1991-11-11 | Wallac Oy | Foerfarande foer observering, registrering och analysering av scintillationsfoereteelser vid scintillationsraekning. |
US5834779A (en) * | 1997-05-30 | 1998-11-10 | Adac Laboratories | Method and apparatus for performing correction for random coincidences in a medical imaging system |
US5999588A (en) * | 1998-04-17 | 1999-12-07 | Adac Laboratories | Deadtime correction in a nuclear medicine imaging system |
US5998793A (en) * | 1998-04-17 | 1999-12-07 | Adac Laboratories | Method and apparatus for correcting for random coincidences in a nuclear medicine imaging system |
US6100531A (en) * | 1998-04-17 | 2000-08-08 | Adac Laboratories | Dual-purpose radiation transmission source for nuclear medicine imaging system |
US6291825B1 (en) | 1998-10-23 | 2001-09-18 | Adac Laboratories | Method and apparatus for performing pulse pile-up corrections in a gamma camera system |
US6198104B1 (en) | 1998-10-23 | 2001-03-06 | Adac Laboratories | Randoms correction using artificial trigger pulses in a gamma camera system |
US6160259A (en) * | 1998-10-23 | 2000-12-12 | Adac Laboratories | Channel-specific control of pulse integration in a gamma camera system in response to pulse pile-up |
US6169285B1 (en) | 1998-10-23 | 2001-01-02 | Adac Laboratories | Radiation-based imaging system employing virtual light-responsive elements |
US6294788B1 (en) * | 1999-08-18 | 2001-09-25 | Marconi Medical Systems, Inc. | Randoms correction in positron imaging |
CN101542316B (zh) * | 2006-11-30 | 2013-03-27 | 皇家飞利浦电子股份有限公司 | 利用相关的光子数和能量测量的谱计算机断层摄影 |
US20090039270A1 (en) * | 2007-08-08 | 2009-02-12 | Cabral Jr Cyril | Large-area alpha-particle detector and method for use |
US8543356B2 (en) * | 2008-01-24 | 2013-09-24 | National Institute Of Standards And Technology | Low cost multi-channel data acquisition system |
CN103559391B (zh) * | 2013-10-23 | 2016-10-05 | 沈阳东软医疗系统有限公司 | 判定随机符合事件和判定真符合事件的方法及装置 |
JP6294929B1 (ja) * | 2016-09-27 | 2018-03-14 | 株式会社日立製作所 | 放射線測定装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3725657A (en) * | 1969-01-21 | 1973-04-03 | Nuclear Chicago Corp | Method and apparatus for determining efficiency in a liquid scintillation counting system |
US3772512A (en) * | 1971-07-02 | 1973-11-13 | Searle & Co | Liquid scintillation coincidence detector |
FR2331797A1 (fr) * | 1975-11-17 | 1977-06-10 | Intertechnique Sa | Perfectionnements aux procedes et dispositifs de comptage, notamment de comptage a scintillation liquide |
US4071761A (en) * | 1976-06-07 | 1978-01-31 | Beckman Instruments, Inc. | Method for determining random coincidence count rate in a scintillation counter utilizing the coincidence technique |
-
1978
- 1978-01-30 US US05/873,318 patent/US4181855A/en not_active Expired - Lifetime
-
1979
- 1979-01-18 GB GB7901802A patent/GB2013880B/en not_active Expired
- 1979-01-26 DE DE19792903050 patent/DE2903050A1/de not_active Ceased
- 1979-01-29 NL NL7900685A patent/NL7900685A/xx not_active Application Discontinuation
- 1979-01-29 CH CH85479A patent/CH631551A5/fr not_active IP Right Cessation
- 1979-01-29 BE BE193117A patent/BE873758A/xx not_active IP Right Cessation
- 1979-01-29 FR FR7902190A patent/FR2415818A1/fr active Granted
- 1979-01-29 SE SE7900767A patent/SE435764B/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2415818B1 (sv) | 1984-06-29 |
GB2013880A (en) | 1979-08-15 |
NL7900685A (nl) | 1979-08-01 |
DE2903050A1 (de) | 1979-08-02 |
CH631551A5 (fr) | 1982-08-13 |
SE435764B (sv) | 1984-10-15 |
BE873758A (fr) | 1979-05-16 |
GB2013880B (en) | 1982-09-02 |
US4181855A (en) | 1980-01-01 |
FR2415818A1 (fr) | 1979-08-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE7900767L (sv) | Sett och apparat for bestemning av slumpkoincidensreknefrekvens i en scintillationsrekanre i vilken utnyttjas koincidensteknink | |
SE7706523L (sv) | Metod for bestemning av sammanfallande slumpfrekvens i en scintillationsreknare utnyttjande slumptekniken | |
GB1312482A (en) | Frequency modulated signal demodulator | |
GB1465750A (en) | Method and apparatus for finding the centre amplitude of each pulse of a train of random amplitude asymmeteric pulses | |
US3886451A (en) | Random phase modulating time base and method to improve measurement averaging counter resolution | |
JPH02254397A (ja) | 時間測定方法およびその装置 | |
GB1496607A (en) | Distance measuring equipments | |
SE7602558L (sv) | Signalbehandlingskrets | |
GB1279511A (en) | Function generator | |
US2626313A (en) | Apparatus for determining time intervals | |
IT954388B (it) | Sistema di elaborazione di segnali adatto in particolare per la prova di rifflessi nervosi | |
GB1353798A (en) | Amplitude range splitter for an analyser of particle-produced pulses | |
JP3516778B2 (ja) | 半導体試験装置における周波数測定方法 | |
US3968429A (en) | Particle analyzer of the Coulter type including coincidence error correction circuitry | |
SE401954B (sv) | Sett och apparat for att forbettra diskriminering av detekterade signaler i en elektronisk detekteringsanleggning | |
SU106143A1 (ru) | Способ измерени отношени амплитуд напр жени двух или нескольких импульсов экспоненциальной или колокольной формы | |
SU1188640A1 (ru) | Устройство дл измерени коэффициента затухани акустических колебаний | |
SU868627A1 (ru) | Цифровой фазометр | |
SU693115A1 (ru) | Обнаружитель слабых сигналов | |
SU397066A1 (sv) | ||
SU911708A1 (ru) | Формирователь импульсов | |
SU473143A1 (ru) | Способ определени коэффициента ослаблени оптического излучени жидкокапельными метеообразовани ми | |
SU957121A1 (ru) | Измеритель средней частоты следовани импульсов | |
SU687949A1 (ru) | Способ измерени интенсивности последовательности случайных импульсов | |
SU1168866A1 (ru) | Способ измерени медианной амплитуды распределени импульсов детектора |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7900767-0 Effective date: 19901211 Format of ref document f/p: F |