KR920020528A - Laser working method and apparatus in the contaminated area of nuclear facility - Google Patents

Laser working method and apparatus in the contaminated area of nuclear facility Download PDF

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Publication number
KR920020528A
KR920020528A KR1019920004586A KR920004586A KR920020528A KR 920020528 A KR920020528 A KR 920020528A KR 1019920004586 A KR1019920004586 A KR 1019920004586A KR 920004586 A KR920004586 A KR 920004586A KR 920020528 A KR920020528 A KR 920020528A
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KR
South Korea
Prior art keywords
amplifier
laser beam
zone
reflector
amplifying
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Application number
KR1019920004586A
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Korean (ko)
Inventor
까르뜨리 쟝-삐에르
Original Assignee
삐에르 샤르똥
프라마똠므
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Publication date
Application filed by 삐에르 샤르똥, 프라마똠므 filed Critical 삐에르 샤르똥
Publication of KR920020528A publication Critical patent/KR920020528A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
    • B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/30—Processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/002—Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
    • F22B37/003—Maintenance, repairing or inspecting equipment positioned in or via the headers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
    • G21F9/005—Decontamination of the surface of objects by ablation

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Cleaning In General (AREA)
  • Lasers (AREA)

Abstract

내용 없음No content

Description

핵 시설의 오염 구역내의 레이저 작업방법 및 장치Laser working method and apparatus in the contaminated area of nuclear facility

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 레이저에 의해 정화하기 위한 장치를 개략적으로 도시하는 도면,1 shows schematically a device for purification by a laser according to the invention,

제2도는 상기 장치의 상세도를 대축척으로 도시하는 도면,2 shows on a large scale a detailed view of the device,

제3도는 한 변형예의 제2도와 유사한 도면.FIG. 3 is a view similar to FIG. 2 of a variation.

Claims (12)

핵시설의 오염 구역(2)내에 수용된 표면(3,4,5)상에서의 레이저 작업 방법에 있어서, 펄스 레이저 비임을 오염 구역(12)외부에 방사하고, 이 비임을 상기 표면 부근으로 운반하고, 그 위치에서 상기 비임을 증폭하고(도면부호 15에서), 상기 증폭 비임은 반사경 등을 거쳐 상기 표면으로 보내는 것을 특징으로 하는 방법.In the method of laser operation on the surfaces (3, 4, 5) contained in the contaminated zone (2) of the nuclear facility, a pulsed laser beam is radiated outside the contaminated zone (12), and the beam is transported near the surface, Amplifying the beam at that location (at reference numeral 15) and sending the amplifying beam to the surface via a reflector or the like. 제1항에 있어서, 운반은 광섬유(18)에 의해서 행하는 것을 특징으로 하는 방법.The method according to claim 1, wherein the conveying is performed by an optical fiber (18). 제1항 또는 제2항에 있어서, 차폐 또는 환원 가스는 레이저 작업시 구역내로 보내는 것을 특징으로 하는 방법.The method according to claim 1 or 2, wherein the shielding or reducing gas is sent into the zone during the laser operation. 제1항 내지 제3항중 어느 한 항에 있어서, 상기 작업 구역은 제한되며, 상기 레이저 작업시 제한 구역내에 수용된 가스를 흡출해내는 것을 특징으로 하는 방법.4. A method according to any one of claims 1 to 3, wherein the working zone is confined and withdraws gas contained in the restricted zone during the laser operation. 제1항 내지 제4항중 어느 한 항에 있어서, 상기 증폭 비임(37)은 표면과 평행하게 전극(39)의 오리피스(40)를 관통시켜 형성되는 것을 특징으로 하는 방법.5. The method according to claim 1, wherein the amplifying beam is formed by penetrating the orifice of the electrode. 제1항 내지 제4항중 어느 한 항에 있어서, 상기 표면(3 내지 5)을 정화시키기 위하여, 증폭 후 적어도 0.3 내지 5주울의 에너지와, 10 내지 30ns인 지속 시간과, 1 내지 15J/㎠인 에너지 밀도를 가지는 펄스를 함유한 레이저 비임을 사용하는 것을 특징으로 하는 방법.5. The method according to claim 1, wherein at least 0.3 to 5 joules of energy after amplification, a duration of 10 to 30 ns, and 1 to 15 J / cm 2 are used to purify the surfaces 3 to 5. Using a laser beam containing a pulse having an energy density. 핵 시설의 오염 구역(2)에 포함되 표면(3,4,5)상의 레이저 작업용 장치에 있어서, 상기 오염 구역(2)외부에 설치된 펄스 레이저 비임 발생기(12)와; 레이저 비임 증폭기(15)와; 상기 증폭기의 입구로 펄스 레이저 비임을 운반하기 위한 수단과; 상기 표면 근처에서 혹은 상기 표면과 대향한 증폭기(15)를 이동시키기 위한 수단(21)을 포함하는 것을 특징으로 하는 장치.An apparatus for laser operation on surfaces (3,4,5) contained in a contaminated zone (2) of a nuclear facility, comprising: a pulsed laser beam generator (12) installed outside said contaminated zone (2); A laser beam amplifier 15; Means for conveying a pulsed laser beam to the inlet of the amplifier; And means (21) for moving the amplifier (15) near or opposite the surface. 제7항에 있어서, 상기 발생기(12)는 가우씨안 반사경 등이 제공될 수 있는 Nd-YAG,사파이어 혹은 익사이머형으로 이루어지며, 상기 운반 수단(18)은 광 섬유를 포함한 것을 특징으로 하는 장치.8. The generator (12) according to claim 7, characterized in that the generator (12) is made of Nd-YAG, sapphire or excimer type, in which Gaussian reflectors and the like can be provided, wherein the conveying means (18) comprises optical fibers. Device. 제8항에 있어서, 상기 광섬유(18)는 적어도 15m인 길이를 구비하는 것을 특징으로 하는 장치.The device of claim 8, wherein the optical fiber has a length that is at least 15 meters. 제7항 내지 제9항중 어느 한 항에 있어서, 상기 증폭기(15)의 출구에 설치되어 상기 증폭기에 대해 이동할수 있는 반사경(38)을 포함하는 것을 특징으로 하는 장치.10. A device according to any one of claims 7 to 9, characterized in that it comprises a reflector (38) mounted at the outlet of the amplifier (15) and movable with respect to the amplifier. 제7항 내지 제10항중 어느 한 항에 있어서, 상기 증폭기(15) 또는 반사경(38)과 함께 이동할 수 있는 격실(16)을 포함하며, 차폐 또는 환원 가스를 도입하는 수단(19)등이 제공될 수 있는 흡입 수단(13, 14, 20)을 구비하는 것을 특징으로 하는 장치.11. A device as claimed in any one of claims 7 to 10, comprising a compartment (16) which is movable together with the amplifier (15) or reflector (38), provided with means (19) for introducing shielding or reducing gas. Device, characterized in that it has a suction means (13, 14, 20). 제7항 내지 제11항중 어느 한항에 있어서, 상기 표면과 평행이며 증폭된 레이저 비임이 통과할 수 있게 오리피스(40)가 천공되고 상기 증폭기(15)와 함께 이동 할 수 있는 전극(39)과, 상기 전극 및 표면간에 전기장을 형성하는 수단(41)을 포함하는 것을 특징으로 하는 장치.12. The electrode 39 according to any one of claims 7 to 11, wherein the orifice 40 is perforated and movable with the amplifier 15 so as to pass through the amplified laser beam parallel to the surface; Means (41) for forming an electric field between the electrode and the surface. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019920004586A 1991-04-05 1992-03-20 Laser working method and apparatus in the contaminated area of nuclear facility KR920020528A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR919104189A FR2674983B1 (en) 1991-04-05 1991-04-05 LASER WORKING PROCESS AND EQUIPMENT IN A CONTAMINATED AREA OF A NUCLEAR FACILITY.
FR9104189 1991-04-05

Publications (1)

Publication Number Publication Date
KR920020528A true KR920020528A (en) 1992-11-21

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KR1019920004586A KR920020528A (en) 1991-04-05 1992-03-20 Laser working method and apparatus in the contaminated area of nuclear facility

Country Status (9)

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EP (1) EP0507641B1 (en)
KR (1) KR920020528A (en)
CA (1) CA2062623A1 (en)
DE (1) DE69204879T2 (en)
ES (1) ES2078681T3 (en)
FR (1) FR2674983B1 (en)
RU (1) RU2084978C1 (en)
TW (1) TW201356B (en)
ZA (1) ZA922453B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2168413C (en) * 1995-01-31 2000-04-18 Kouki Okazaki Underwater laser processing method and apparatus
RU2199162C1 (en) * 2001-10-08 2003-02-20 Максимов Лев Николаевич Method and device for recovering spent nuclear fuel
GB2391691B (en) * 2002-08-07 2006-02-08 Remote Marine Systems Ltd Method and apparatus for removing material from a target object
FR2879101B1 (en) * 2004-12-14 2007-03-02 Cogema LASER DECONTAMINATION OF THE SURFACE OF A PROFILE PIECE.
FR2894711B1 (en) 2005-12-09 2009-04-10 Cogema DEVICE AND METHOD FOR AUTOMATED DECONTAMINATION OF A NUCLEAR FUEL PEN
RU2468457C1 (en) * 2011-08-03 2012-11-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики" Method for removing radioactive film from object surface
CN104438227B (en) * 2013-09-16 2018-12-18 上海海固电器设备有限公司 A kind of aircraft illiteracy paint laser cleaning equipment
CN104438230A (en) * 2014-11-17 2015-03-25 成都莱普科技有限公司 Industrial product laser cleaning system and control method thereof
FR3100002B1 (en) 2019-08-21 2021-11-19 Onet Tech Cn Process for decontaminating by pulsed laser a metal part comprising on its surface a layer of metal oxides
CN112605068A (en) * 2020-12-15 2021-04-06 湖南大学 Irradiation-resistant variable-focus laser cleaning device and using method
CN113198802B (en) * 2021-05-17 2022-07-12 圣同激光设备(上海)有限公司 Large-breadth laser cleaning machine

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LU71852A1 (en) * 1975-02-14 1977-01-05
GB2118028B (en) * 1982-04-05 1985-12-18 Maxwell Lab Inc Decontaminating surfaces
CA1198482A (en) * 1982-04-14 1985-12-24 Thaddeus A. Wojcik Laser decontamination method
JPS61242273A (en) * 1985-04-18 1986-10-28 株式会社フジタ Method and apparatus for cutting reinforced concrete structure
JPS63241399A (en) * 1987-03-30 1988-10-06 株式会社東芝 Laser decontaminator

Also Published As

Publication number Publication date
FR2674983A1 (en) 1992-10-09
DE69204879T2 (en) 1996-04-04
EP0507641B1 (en) 1995-09-20
CA2062623A1 (en) 1992-10-06
ZA922453B (en) 1993-10-04
TW201356B (en) 1993-03-01
ES2078681T3 (en) 1995-12-16
FR2674983B1 (en) 1994-08-05
DE69204879D1 (en) 1995-10-26
EP0507641A1 (en) 1992-10-07
RU2084978C1 (en) 1997-07-20

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