Chemical oxygen-iodine laser (COIL) for the dismantlement of nuclear facilities

Hallada, Marc R.; Seiffert, Stephan L.; Walter, Robert F.; Vetrovec, John

doi:10.1117/12.384276

Cited by 5 publications

(5 citation statements)

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“…Great success has been obtained in the research and development of a chemical oxygen-iodine laser (COIL) [1][2][3]. The active medium of a COIL is atomic iodine emitting photons when changing its electronic state: I * ( 2 P 1/2 ) → I( 2 P 3/2 ) + hν.…”

Section: Introductionmentioning

confidence: 99%

Non-self-sustained electric discharge in oxygen gas mixtures: singlet delta oxygen production

Ионин

Klimachev

Kotkov

et al. 2003

J. Phys. D: Appl. Phys.

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The possibility of obtaining a high specific input energy in an electron-beam sustained discharge ignited in oxygen gas mixtures O 2 : Ar : CO (or H 2) at the total gas pressures of 10-100 Torr was experimentally demonstrated. The specific input energy per molecular component exceeded ∼6 kJ l −1 atm −1 (150 kJ mol −1) as a small amount of carbon monoxide was added into a gas mixture of oxygen and argon. It was theoretically demonstrated that one might expect to obtain a singlet delta oxygen yield of 25% exceeding its threshold value needed for an oxygen-iodine laser operation at room temperature, when maintaining a non-self-sustained discharge in oxygen gas mixtures with molecular additives CO, H 2 or D 2. The efficiency of singlet delta oxygen production can be as high as 40%.

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Section: Introductionmentioning

confidence: 99%

Non-self-sustained electric discharge in oxygen gas mixtures: singlet delta oxygen production

Ионин

Klimachev

Kotkov

et al. 2003

J. Phys. D: Appl. Phys.

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“…The COIL has a potential for applications such as decommissioning and dismantling of nuclear reactors. 49 Due to the life cycle of nuclear installations, in particular power plants, decommissioning will become increasingly important in the near future. Laser technology enables efficient decommissioning and dismantling without hazardous exposure of human life, in particular in highly contaminated environment.…”

Section: Projects Of Coil Applicationsmentioning

confidence: 99%

COIL--Chemical Oxygen Iodine Laser: advances in development and applications

Kodymová

2005

SPIE Proceedings

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Advantageous features of Chemical Oxygen-Iodine Laser (COIL) for laser technologies have increased considerably activities of international COIL communities during past ten years. They have been focused on the advanced concepts of hardware designs of the COIL subsystems, and testing and scaling-up of existing laser facilities. Prospective special applications of COIL technology, both civil and military, have received a significant attention and gained concrete aims. The paper is introduced by a brief description of the COIL operation mechanism and key device subsystems. It deals then with presentation of some investigated advanced concepts of singlet oxygen generators, alternative methods for atomic iodine generation, a mixing and ejector nozzle design to downsize a pressure recovery system, and optical resonators for high power COIL systems. The advanced diagnostics and computational modeling are also mentioned as very useful tools for critical insight into the laser kinetics and fluid dynamics, supporting thus the COIL research. The recent progress in the COIL development moves this laser closer to the application projects that are also briefly presented.

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“…[1]. At the same time, elevated total pressure inside COIL gas channel brings about a number of unquestionable advantages [3][4][5]. For today, as is known from COIL publications, the main unit limiting singlet oxygen pressure inside the COIL channel is SOG.…”

Section: Singlet Oxygen Generatormentioning

confidence: 99%

“…Increasing the singlet oxygen pressure one can obtain higher output power with the same size of a facility; and increase in the total pressure at the same gas flowrate reduces energy inputs for evacuation. There is no doubt that the approach demonstrated by the Samara scientific team, when the pressure is elevated by buffer gas ejection [5], is worthy of note. However, this setup needs optimization to decrease the buffer gas flowrate.…”

Section: Introductionmentioning

confidence: 98%

“…Due to the purely chemical pumping method, an independent powerful industrial laser facility wouldn't have too high demand in electric energy. Together with other unique features, all the above properties give COIL a definite priority over other industrial lasers, especially in such applications as dismantling of outserved nuclear plants or accident response operations [3][4][5]. COIL development for industrial purposes faces a set of difficulties, the most serious of them being as follows: i) keeping of the working vacuum inside the laser cavity; ii) safety and ecological problems related to the presence of chlorine, iodine, and corrosive solutions; iii) effective procedures of hydrogen peroxide alkali solution (BlIP) preparation and re-circulation.…”

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confidence: 99%

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Supersonic oxygen-iodine laser evolution at Russian Federal Nuclear Center-VNIIEF

Vyskubenko¹,

Adamenkov²,

Deryugin³

et al. 2001

SPIE Proceedings

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The results of experimental and numerical-theoreticalsupersonic COIL study carried out at RFNC-VNIIEF in 1998 are performed. The novel data concern our research into the twisted-flow SOG (TA SOG) performance. The experimental investigations of gas-dynamic and energy performance, chemical efficiency, and optical quality are reported and discussed for the supersonic COIL with the parallel-flow system of gaseous iodine and singlet oxygen mixing. Application of TA-SOG together with the parallel-flow mixing system was shown to allow high values of COIL operation. The peculiarities of numerical-theoretical model developed at RFNC-VNIIEF are discussed. INTRODUCTIONIndustrial applications of the Oxygen -Iodine Laser (COIL) have been under active consideration in the last 5-7 years [1][2][3][4]. The interest in development of industrial COIL is stipulated by a number of its advantageous peculiarities such as: first, high emission power at good beam quality; second, possibility for powerful emission of COIL to reach remote workplaces via virtually loss-less fiber-silica beam delivery, which opens new technological areas of application. Due to the purely chemical pumping method, an independent powerful industrial laser facility wouldn't have too high demand in electric energy. Together with other unique features, all the above properties give COIL a definite priority over other industrial lasers, especially in such applications as dismantling of outserved nuclear plants or accident response operations [3][4][5]. COIL development for industrial purposes faces a set of difficulties, the most serious of them being as follows: i) keeping of the working vacuum inside the laser cavity; ii) safety and ecological problems related to the presence of chlorine, iodine, and corrosive solutions; iii) effective procedures of hydrogen peroxide alkali solution (BlIP) preparation and re-circulation. These and other problems refer to the tasks that will be solved in the course of industrial COIL development in VNIIEF. The principal problem at which the developers are currently focusing their efforts is pressure recovery at the exit COIL duct. The highest singlet oxygen pressure that may ensure high laser efficiency is supposed to be determined experimentally. Increasing the singlet oxygen pressure one can obtain higher output power with the same size of a facility; and increase in

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Chemical oxygen-iodine laser (COIL) for the dismantlement of nuclear facilities

Cited by 5 publications

References 0 publications

Non-self-sustained electric discharge in oxygen gas mixtures: singlet delta oxygen production

Non-self-sustained electric discharge in oxygen gas mixtures: singlet delta oxygen production

COIL--Chemical Oxygen Iodine Laser: advances in development and applications

Supersonic oxygen-iodine laser evolution at Russian Federal Nuclear Center-VNIIEF

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