ZA79531B - Improvements in radiography - Google Patents

Improvements in radiography

Info

Publication number
ZA79531B
ZA79531B ZA79531A ZA79531A ZA79531B ZA 79531 B ZA79531 B ZA 79531B ZA 79531 A ZA79531 A ZA 79531A ZA 79531 A ZA79531 A ZA 79531A ZA 79531 B ZA79531 B ZA 79531B
Authority
ZA
South Africa
Prior art keywords
radiography
Prior art date
Application number
ZA79531A
Inventor
A Lang
Original Assignee
De Beers Cons Mines 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 De Beers Cons Mines Ltd filed Critical De Beers Cons Mines Ltd
Publication of ZA79531B publication Critical patent/ZA79531B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/389—Precious stones; Pearls
    • 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
    • G01N23/02—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 transmitting the radiation through the material
    • G01N23/04—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 transmitting the radiation through the material and forming images of the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/87—Investigating jewels

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
ZA79531A 1978-02-14 1979-02-07 Improvements in radiography ZA79531B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB589878 1978-02-14
GB2355178 1978-05-26

Publications (1)

Publication Number Publication Date
ZA79531B true ZA79531B (en) 1980-02-27

Family

ID=26240242

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA79531A ZA79531B (en) 1978-02-14 1979-02-07 Improvements in radiography

Country Status (5)

Country Link
CH (1) CH638048A5 (en)
DE (1) DE2905367A1 (en)
FR (1) FR2417100A1 (en)
NL (1) NL7901179A (en)
ZA (1) ZA79531B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1126477A3 (en) * 2000-02-14 2003-06-18 Leica Microsystems Lithography GmbH Method for structure investigation in a semiconductor substrate
DE102010033761A1 (en) * 2010-08-09 2012-02-09 Rolls-Royce Deutschland Ltd & Co Kg Method for radiographic testing of components

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2128365C3 (en) * 1971-06-08 1974-05-22 Optische Werke G. Rodenstock, 8000 Muenchen Device for enlarged representation of the cross section of undestroyed contact lenses or the like
DE2444644A1 (en) * 1974-09-18 1976-04-08 Dihaco Diamanten Handels Co METHOD AND DEVICE FOR DETERMINING AND SIZING INCLUSIONS IN GEMSTONES
DE2604410A1 (en) * 1974-09-18 1977-08-11 Dihaco Diamanten Handels Co Evaluation of precious stones - using narrow light beam whose cross section is equal to smallest inclusion to be detected

Also Published As

Publication number Publication date
FR2417100A1 (en) 1979-09-07
FR2417100B1 (en) 1985-02-22
DE2905367C2 (en) 1988-07-28
CH638048A5 (en) 1983-08-31
DE2905367A1 (en) 1979-08-23
NL7901179A (en) 1979-08-16

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