JPS5744821A - Photon counter - Google Patents

Photon counter

Info

Publication number
JPS5744821A
JPS5744821A JP11951180A JP11951180A JPS5744821A JP S5744821 A JPS5744821 A JP S5744821A JP 11951180 A JP11951180 A JP 11951180A JP 11951180 A JP11951180 A JP 11951180A JP S5744821 A JPS5744821 A JP S5744821A
Authority
JP
Japan
Prior art keywords
threshold
pulses
counter
signal
output
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.)
Pending
Application number
JP11951180A
Other languages
Japanese (ja)
Inventor
Shohei Noda
Yasuhiko Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP11951180A priority Critical patent/JPS5744821A/en
Publication of JPS5744821A publication Critical patent/JPS5744821A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To eliminate the effect of noises, to reduce the measuring time and to improve the accuracy by adapting a photon counter to provide only pulses included within a threshold. CONSTITUTION:A signal light 31 enters a photomultiplier 33 via a chopper 32. The output pulses of the photomultiplier 33 are sent to a counter 34 and are counted in synchronism with a chopper signal 41 through the pulses of a pulse generator 35. The output 39 of the counter 34 is sent to a threshold circuit 43 and compared with the threshold to send out only pulses included within the threshold. The output pulses are integrated by an integrator 36 for an appropriate number of repetitions, then a signal 42 is provided. Thus the effect of noises is eliminated, measuring time is reduced and the accuracy is improved.
JP11951180A 1980-08-29 1980-08-29 Photon counter Pending JPS5744821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11951180A JPS5744821A (en) 1980-08-29 1980-08-29 Photon counter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11951180A JPS5744821A (en) 1980-08-29 1980-08-29 Photon counter

Publications (1)

Publication Number Publication Date
JPS5744821A true JPS5744821A (en) 1982-03-13

Family

ID=14763067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11951180A Pending JPS5744821A (en) 1980-08-29 1980-08-29 Photon counter

Country Status (1)

Country Link
JP (1) JPS5744821A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009015586A1 (en) 2009-03-30 2010-10-14 Perkinelmer Optoelectronics Gmbh & Co.Kg Sensor readout circuit, sensor and method for reading a sensor element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009015586A1 (en) 2009-03-30 2010-10-14 Perkinelmer Optoelectronics Gmbh & Co.Kg Sensor readout circuit, sensor and method for reading a sensor element

Similar Documents

Publication Publication Date Title
ES8404518A1 (en) Dosimeter for photometric applications.
JPS5744821A (en) Photon counter
JPS53143378A (en) Speed counting system
JPS5263774A (en) Sample pulse generator
JPS56153864A (en) Pn generator commonly used as frame counter
JPS5580014A (en) Electronic integrating meter inspecting device
JPS56160676A (en) Counting method of radiation
FR2359404A1 (en) Low light level measurement photomultiplier system - has pulse shaper circuit and integrator for high stability operation
JPS5426772A (en) Operational system
JPS5663281A (en) Radiation dose rate meter
JPS5734413A (en) Measuring device for passing quantity
SU1106270A1 (en) DEVICE FOR CURRENT CORRECTION LOSSES ACCOUNT SENSOR IONIZING RADIATION
JPS57181227A (en) Analog-to-digital converter
JPS56168171A (en) Counting type waveform shaping circuit
SU1046719A1 (en) Logic probe
JPS6453188A (en) Counting rate meter for warning
JPS5246871A (en) Device for measurement of automatic phase discriminating allowance
JPS53124456A (en) Reference signal generator
JPS56114433A (en) Signal comparator
JPS5723120A (en) Overstroke detecting circuit of positioning controller
JPS5493541A (en) Travelling distance detector of elevator
JPS5773532A (en) Count value storage device
JPS56157124A (en) Waveform shaping circuit
JPS57118166A (en) Measuring apparatus for waveform width
JPS547385A (en) Speed counting system