SE435764B - Sett att vid en scintillationsreknare bestemma ett slumpkoincidensreknetal, samt apparat avsedd att anvendas for settet - Google Patents

Sett att vid en scintillationsreknare bestemma ett slumpkoincidensreknetal, samt apparat avsedd att anvendas for settet

Info

Publication number
SE435764B
SE435764B SE7900767A SE7900767A SE435764B SE 435764 B SE435764 B SE 435764B SE 7900767 A SE7900767 A SE 7900767A SE 7900767 A SE7900767 A SE 7900767A SE 435764 B SE435764 B SE 435764B
Authority
SE
Sweden
Prior art keywords
pulses
coincidence
random
count
coincidences
Prior art date
Application number
SE7900767A
Other languages
English (en)
Swedish (sv)
Other versions
SE7900767L (sv
Inventor
D L Horrocks
Original Assignee
Beckman Instruments Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beckman Instruments Inc filed Critical Beckman Instruments Inc
Publication of SE7900767L publication Critical patent/SE7900767L/
Publication of SE435764B publication Critical patent/SE435764B/sv

Links

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)
SE7900767A 1978-01-30 1979-01-29 Sett att vid en scintillationsreknare bestemma ett slumpkoincidensreknetal, samt apparat avsedd att anvendas for settet SE435764B (sv)

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 SE7900767L (sv) 1979-07-31
SE435764B true 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 (fr)
BE (1) BE873758A (fr)
CH (1) CH631551A5 (fr)
DE (1) DE2903050A1 (fr)
FR (1) FR2415818A1 (fr)
GB (1) GB2013880B (fr)
NL (1) NL7900685A (fr)
SE (1) SE435764B (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
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
FR2467582A1 (fr) * 1979-10-18 1981-04-30 Ortec Inc Appareil de tacographie pour l'etude de patients apres administration de produits radioactifs
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
US5146093A (en) * 1985-04-08 1992-09-08 Packard Instrument Company, Inc. Liquid scintillation measurement system with active guard shield
US4651006A (en) * 1985-04-08 1987-03-17 Packard Instrument Company, Inc. Reduced background scintillation counting
US4748348A (en) * 1986-12-29 1988-05-31 Tektronix, Inc. Multi-level pattern detector for a single signal
CA1280224C (fr) * 1987-08-27 1991-02-12 Daniel Gagnon Methode et circuit de traitement de signaux a bande etroite se trouvant dans une bande large comportant une perturbation
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
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
US5999588A (en) * 1998-04-17 1999-12-07 Adac Laboratories Deadtime correction in a nuclear medicine imaging system
US6169285B1 (en) 1998-10-23 2001-01-02 Adac Laboratories Radiation-based imaging system employing virtual light-responsive elements
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
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
US6294788B1 (en) * 1999-08-18 2001-09-25 Marconi Medical Systems, Inc. Randoms correction in positron imaging
EP2100167A2 (fr) * 2006-11-30 2009-09-16 Koninklijke Philips Electronics N.V. Tomographie spectrale assistée par ordinateur utilisant un nombre de photons et des mesures d'énergie corrélés
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GB2013880A (en) 1979-08-15
DE2903050A1 (de) 1979-08-02
BE873758A (fr) 1979-05-16
US4181855A (en) 1980-01-01
CH631551A5 (fr) 1982-08-13
FR2415818A1 (fr) 1979-08-24
FR2415818B1 (fr) 1984-06-29
SE7900767L (sv) 1979-07-31
GB2013880B (en) 1982-09-02
NL7900685A (nl) 1979-08-01

Similar Documents

Publication Publication Date Title
SE435764B (sv) Sett att vid en scintillationsreknare bestemma ett slumpkoincidensreknetal, samt apparat avsedd att anvendas for settet
US4593198A (en) Pulse pile-up discrimination system
US4418282A (en) Method and apparatus for determining random coincidence count rate in a scintillation counter utilizing the coincidence technique
US4071761A (en) Method for determining random coincidence count rate in a scintillation counter utilizing the coincidence technique
JP2008026195A (ja) 中性子強度分布測定装置
US4049966A (en) Nuclear radiation measuring method and apparatus having blanking time inversely related to count rate
EP0132067A2 (fr) Densitomètres à radiations nucléaires
SE460384B (sv) Foerfarande och anordning foer korrigering av koincidensfel som upptraeder vid detektering och raekning av blandade dominanta och dominerande partiklar
CA1067214A (fr) Appareil de mesure de radiations utilisant un echantillonneur d'impulsions a frequence variable
US3381130A (en) Method and apparatus for counting standardization in scintillation spectrometry
CN106842277B (zh) 一种堆积事件处理方法及装置
US3842278A (en) Liquid scintillation unit with low background noise
US4398101A (en) Four input coincidence detector
US2954473A (en) Cerenkov radiation fission product detector
US2590057A (en) Half-life determining method
JP7239921B2 (ja) 陽電子消滅特性測定装置
US2796533A (en) Logarithmic count rate or frequency meter
US3914602A (en) Plutonium monitor
JPH0820517B2 (ja) γ線核種分析方法及び装置
CN106821409B (zh) 堆积事件处理方法及装置
JP2003043149A (ja) 放射線検出回路
US4024398A (en) Data derandomizer and method of operation for radiation imaging detection systems
US3609361A (en) Method and apparatus for external standardization of liquid scintillation samples
US4051373A (en) Delay line clipping in a scintillation camera system
JP2004301601A (ja) α線測定装置

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