GB735847A - Treatment of electrically insulating materials subjected to ionising radiation and apparatus for measuring such radiation - Google Patents

Treatment of electrically insulating materials subjected to ionising radiation and apparatus for measuring such radiation

Info

Publication number
GB735847A
GB735847A GB3406253A GB3406253A GB735847A GB 735847 A GB735847 A GB 735847A GB 3406253 A GB3406253 A GB 3406253A GB 3406253 A GB3406253 A GB 3406253A GB 735847 A GB735847 A GB 735847A
Authority
GB
United Kingdom
Prior art keywords
radiation
conductivity
value
prior
exposure
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.)
Expired
Application number
GB3406253A
Inventor
John H Coleman
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.)
Radiation Research Corp
Original Assignee
Radiation Research Corp
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 Radiation Research Corp filed Critical Radiation Research Corp
Priority to GB3406253A priority Critical patent/GB735847A/en
Publication of GB735847A publication Critical patent/GB735847A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/081—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing particle radiation or gamma-radiation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

735,847. Insulation; semiconductor materials. RADIATION RESEARCH CORPORATION. Dec. 8, 1953, No. 34062/53. Drawings to Specification. Classes 36 and 37. [Also in Groups XL (a) and XL (b)] The resistivity characteristics of insulating material under ionizing radiation are improved by subjecting the material to a dose of radiation substantially in excess of that required to raise the conductivity of the material to a value that does not increase thereafter. This large dose of radiation has the effect of reducing the conductivity of the insulating material to a value which may be less than that of the material prior to exposure to any radiation. Removal of the radiation source causes the conductivity of the material to return to the value it had prior to exposure, and any subsequent exposure causes the material to acquire at once the conductivity corresponding to that which obtained just prior to the removal of the original radiation. Polystyrene, mica, amber and polymonochlorotrifluoroethylene reinforced with fibre glass may be treated in this manner and small quantities of materials such as antioxidants added to the plastic materials may result in additional improvement in the conductivity. Insulating material treated in this manner may be employed in electric cables, especially coaxial cables.
GB3406253A 1953-12-08 1953-12-08 Treatment of electrically insulating materials subjected to ionising radiation and apparatus for measuring such radiation Expired GB735847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3406253A GB735847A (en) 1953-12-08 1953-12-08 Treatment of electrically insulating materials subjected to ionising radiation and apparatus for measuring such radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3406253A GB735847A (en) 1953-12-08 1953-12-08 Treatment of electrically insulating materials subjected to ionising radiation and apparatus for measuring such radiation

Publications (1)

Publication Number Publication Date
GB735847A true GB735847A (en) 1955-08-31

Family

ID=10360897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3406253A Expired GB735847A (en) 1953-12-08 1953-12-08 Treatment of electrically insulating materials subjected to ionising radiation and apparatus for measuring such radiation

Country Status (1)

Country Link
GB (1) GB735847A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069571A (en) * 1957-12-16 1962-12-18 Leesona Corp Radioactive battery
US3200269A (en) * 1961-01-31 1965-08-10 Melvin M Goldstein Self charging nuclear battery
US3224977A (en) * 1956-11-26 1965-12-21 Arthur T Biehl Low power nuclear reactors
US3934162A (en) * 1972-05-26 1976-01-20 Biviator, S.A. Miniaturized nuclear battery
US4178524A (en) * 1976-09-01 1979-12-11 Ritter James C Radioisotope photoelectric generator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224977A (en) * 1956-11-26 1965-12-21 Arthur T Biehl Low power nuclear reactors
US3069571A (en) * 1957-12-16 1962-12-18 Leesona Corp Radioactive battery
US3200269A (en) * 1961-01-31 1965-08-10 Melvin M Goldstein Self charging nuclear battery
US3934162A (en) * 1972-05-26 1976-01-20 Biviator, S.A. Miniaturized nuclear battery
US4178524A (en) * 1976-09-01 1979-12-11 Ritter James C Radioisotope photoelectric generator

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