Theoretical study of a new energy extraction scheme of a chemically pumped pulsed iodine laser amplifier

Endo, Masamori; Kodama, K.; Handa, Y.; Uchiyama, Taro

doi:10.1007/bf00324536

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Iodine molecules are dissociated into atoms and following reactions are dominant for its energy quenching process, 1* + H2O kl > H2O (1) 02(A) + I k2 > 02 + I. (2) As process (2) is much faster than process (1), the stored energy lifetime is approximated by the following equation, It is obvious from the Eq. (5) that the stored energy lifetime is inversely proportional to the supplied 12/02.…”

Section: Tiiorymentioning

confidence: 99%

<title>High-pressure pulsed COIL assisted with an instantaneous production of atomic iodine II</title>

Endo¹,

Minoshima²,

Murata³

et al. 2003

SPIE Proceedings

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Pulsed oscillation of chemical oxygen-iodine laser, which is comprised of a pulsed singlet oxygen generator (SOG) and a photolytic iodine laser, is studied. This scheme allows one to produce a large aperture and high-pressure laser medium while maintaining a minimum degradation of stored energy by water vapor. The experimental apparatus consists of a porous pipe SOG, an iodine donor (CH3I) injector, a flash lamp and an optical resonator. Laser oscillation experiments are conducted and the operational characteristics of the apparatus are investigated. Pulse duration is inversely proportional to the iodine donor concentration as expected. The oscillation capability for different iodine donors is studied and it is concluded that the iodine donors containing fluorine are not suitable for the proposed scheme.Unfavorable chemical dissociation of iodate, which was observed in the previous study, is avoided by the optimization ofthe iodine donor injection and flash exposure timings. Maximum output energy of73OmJ with pulse duration of 65ps is obtained.

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Section: Tiiorymentioning

confidence: 99%

<title>High-pressure pulsed COIL assisted with an instantaneous production of atomic iodine II</title>

Endo¹,

Minoshima²,

Murata³

et al. 2003

SPIE Proceedings

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“…In the early 90's Endo et al had studied an instantaneous production ofhigh pressure O2(A) using a porous pipe SOG as a basic study for the application written above [1,2]. The partial pressure of O2('A) generated with the porous pipe SOG reaches up to 38 Torr [3].…”

Section: Introductionmentioning

confidence: 99%

High-pressure pulsed COIL assisted with an instantaneous production of atomic iodine

et al. 2001

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A new strategy for pulse oscillation of chemical oxygen-iodine laser based on a combination of a porous pipe SOG with an instantaneous atomic iodine generation, has been developed to seek the potential of COIL as an amplifier of the nuclear fusion driver. This new scheme allows one to produce a large aperture high pressure laser medium, which is favorable to the laser amplifier, while maintaining a minimum degradation of stored energy by water vapor. The experimental apparatus consists of the porous pipe SOG, an iodine donor (CH3I) injector, a flash lamp for the iodine dissociation, and an optical resonator. Operational characteristics of the apparatus including dependence of output energy on an iodine concentration was studied. As the result, the maximum output energy of 800mJ was obtained. It was also found that the CH3I was dissociated through unidentified chemical reaction associated with the 02(1A).

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Considerations of a ship defense with a pulsed COIL

Takehisa¹

2015

SPIE Proceedings

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Theoretical study of a new energy extraction scheme of a chemically pumped pulsed iodine laser amplifier

Cited by 3 publications

References 9 publications

<title>High-pressure pulsed COIL assisted with an instantaneous production of atomic iodine II</title>

<title>High-pressure pulsed COIL assisted with an instantaneous production of atomic iodine II</title>

High-pressure pulsed COIL assisted with an instantaneous production of atomic iodine

Considerations of a ship defense with a pulsed COIL

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