GR1000142B - Μέ?οδος και εγκατάστασις αναλύσεως μέσω βομβαρδισμού ουδετερονίων μιάς ροής χύδην υλικού. - Google Patents

Μέ?οδος και εγκατάστασις αναλύσεως μέσω βομβαρδισμού ουδετερονίων μιάς ροής χύδην υλικού.

Info

Publication number
GR1000142B
GR1000142B GR880100468A GR880100468A GR1000142B GR 1000142 B GR1000142 B GR 1000142B GR 880100468 A GR880100468 A GR 880100468A GR 880100468 A GR880100468 A GR 880100468A GR 1000142 B GR1000142 B GR 1000142B
Authority
GR
Greece
Prior art keywords
neutron
radiation
measurement
elements
gamma radiation
Prior art date
Application number
GR880100468A
Other languages
English (en)
Other versions
GR880100468A (en
Inventor
Rene Alegre
Jacques Louis Eugene Alexandre
Thierry Maxime Mauric Barnavon
Jean Pierre Noel Baron
Jacques Cariou
Leon Debray
Original Assignee
Lafarge Ciments Sa
Galliko Dimosio
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 Lafarge Ciments Sa, Galliko Dimosio filed Critical Lafarge Ciments Sa
Publication of GR880100468A publication Critical patent/GR880100468A/el
Publication of GR1000142B publication Critical patent/GR1000142B/el

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/221—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by activation analysis
    • G01N23/222—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by activation analysis using neutron activation analysis [NAA]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/07—Investigating materials by wave or particle radiation secondary emission
    • G01N2223/074—Investigating materials by wave or particle radiation secondary emission activation analysis
    • G01N2223/0745—Investigating materials by wave or particle radiation secondary emission activation analysis neutron-gamma activation analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/303—Accessories, mechanical or electrical features calibrating, standardising
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/322—Accessories, mechanical or electrical features immerged detecting head
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/345—Accessories, mechanical or electrical features mathematical transformations on beams or signals, e.g. Fourier
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/635—Specific applications or type of materials fluids, granulates

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Radiation (AREA)

Abstract

Η εφεύρεσις ασχολείται με την ανάλυση της περιεκτικότητας σε ορισμένα στοιχεία μέσα σε μία συνεχή ροή υλικών χύδην μορφής, κατόπιν βομβαρδισμού ουδετερονίων και μετρήσεως των ακτινοβολιών γάμμα που προέρχονται από τα στοιχεία τούτα, κατά τρόπον ώστε να επιτρέπεται η διάκρισις μεταξύ των ακτινοβολιών λήψεως και των ακτινοβολιών ενεργοποιήσεως. Σαν πηγή ουδετερονίων χρησιμοποιείται μία λυχνία παραγωγής ουδετερονίων 7 η οποία κινητοποιείται περιοδικά. Τα σήματα που παρέχονται από ένα μοναδικό ανιχνευτή ακτινοβολιών γάμμα 10 ?εωρούνται (εξετάζονται) αποκλειστικά μετά από τα σταματήματα της εκπομπής ουδετερονίων κατά τη διάρκεια χωριστών χρονικών διαστημάτων που αντιστοιχούν προς τα φαινόμενα της λήψεως και προς την ακτινοβολία των ενεργοποιημένων στοιχείων αντίστοιχα. Τα σχετικά σήματα υφίστανται επεξεργασία σε δύο χωριστές τροχιές μετρήσεως και κατόπιν τα αποτελέσματα συνδυάζονται αυτόματα. Μία τρίτη τροχιά μετρήσεως μπορεί να προβλέπεται για τις ακτινοβολίες γάμμα που προκύπτουν από ανελαστικές κρούσεις. Η πηγή 7 και ο ανιχνευτής 10 ενώνονται μέσα σε μια ερευνητική βολίδα 6 διευ?ετημένη στο εσωτερικό ενός προστατευτικού σωληνα 5 από πολυαι?υλένιο (τοπο?ετούμενου) στην καρδιά (κέντρο) της ροής υλικών 1. Η εγκατάσταση επιτρέπει την ανάλυση σημαντικών ροών ορυκτών προϊόντων χωρίς να γίνεται λήψις δειγμάτων, ιδίως στην βιομηχανία (εξορύξεως) του άν?ρακος, του τσιμέντου ή του αλουμινίου. ω
GR880100468A 1987-07-15 1988-07-13 Μέ?οδος και εγκατάστασις αναλύσεως μέσω βομβαρδισμού ουδετερονίων μιάς ροής χύδην υλικού. GR1000142B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8710184A FR2618225B1 (fr) 1987-07-15 1987-07-15 Procede et installation d'analyse par bombardement neutronique d'un flux de materiaux en vrac.

Publications (2)

Publication Number Publication Date
GR880100468A GR880100468A (en) 1989-04-12
GR1000142B true GR1000142B (el) 1991-09-27

Family

ID=9353290

Family Applications (1)

Application Number Title Priority Date Filing Date
GR880100468A GR1000142B (el) 1987-07-15 1988-07-13 Μέ?οδος και εγκατάστασις αναλύσεως μέσω βομβαρδισμού ουδετερονίων μιάς ροής χύδην υλικού.

Country Status (12)

Country Link
EP (1) EP0325645B1 (el)
JP (1) JPH02501331A (el)
AT (1) ATE68597T1 (el)
AU (1) AU606450B2 (el)
BR (1) BR8807128A (el)
CA (1) CA1311567C (el)
DE (1) DE3865662D1 (el)
DK (1) DK122589D0 (el)
FR (1) FR2618225B1 (el)
GR (1) GR1000142B (el)
PT (1) PT87973B (el)
WO (1) WO1989000685A1 (el)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289973A (en) * 1989-03-01 1994-03-01 French Andrew B Snowmaking method and device
US5076993A (en) * 1990-01-12 1991-12-31 Science Applications International Corporation Contraband detection system using direct imaging pulsed fast neutrons
FR2665260A1 (fr) * 1990-07-25 1992-01-31 France Etat Ponts Chaussees Appareil de mesure par irradiation neutronique pulsee de la teneur en ses divers constituants d'un materiau en vrac et procede de determination le mettant en óoeuvre.
CN112326708B (zh) * 2020-10-20 2023-10-24 汪金龙 基于瞬发伽马光谱的人体组织密度和元素组成重建算法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6703114A (el) * 1966-03-15 1967-09-18
AT295893B (de) * 1968-05-27 1972-01-25 Oesterr Studien Atomenergie Verfahren zur Bestimmung der Zusammensetzung von Materialien aller Art bzw. zur Überwachung von technisch-chemischen oder biologischen Vorgängen
US4409481A (en) * 1980-08-28 1983-10-11 Halliburton Company Method for simultaneous measurement of thermal neutron decay components
GB2101304B (en) * 1981-06-10 1985-06-12 Atomic Energy Authority Uk Gold ore sorting
US4582992A (en) * 1984-08-10 1986-04-15 Gamma-Metrics Self-contained, on-line, real-time bulk material analyzer

Also Published As

Publication number Publication date
JPH02501331A (ja) 1990-05-10
EP0325645A1 (fr) 1989-08-02
EP0325645B1 (fr) 1991-10-16
AU606450B2 (en) 1991-02-07
WO1989000685A1 (fr) 1989-01-26
PT87973A (pt) 1989-06-30
DK122589A (da) 1989-03-14
BR8807128A (pt) 1989-10-31
AU2139188A (en) 1989-02-13
PT87973B (pt) 1993-09-30
FR2618225A1 (fr) 1989-01-20
DE3865662D1 (de) 1991-11-21
DK122589D0 (da) 1989-03-14
FR2618225B1 (fr) 1990-03-02
CA1311567C (fr) 1992-12-15
GR880100468A (en) 1989-04-12
ATE68597T1 (de) 1991-11-15

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