Nuclear-pumped lasing of 3He-Xe and 3He-Kr

Young, R. J. De; Jalufka, N. W.; Höhl, F.

doi:10.1063/1.89214

Cited by 46 publications

(10 citation statements)

References 7 publications

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“…(Ref. 40,41) Energy storage has been observed In the He-neutral carbon and Neneutral carbon NTLs (Ref. 36,37) at thermal fluxes of <1xlO 15 n/cm 2 -scc.…”

Section: Visible and Near Ir Npi/?_mentioning

confidence: 99%

Advanced methods for nuclear reactor gas laser coupling

Miley¹,

Verdeyen²

1978

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Research is described that lead to the discovery of three nuclearpumped lasers (NPLs) using mixtures of Ne-N ? , He-Hg, and He or Ne with CO or C0 2. The Ne-N ? NPL was the first laser obtained with modest neutron fluxes from a TRIGA reactor (vs fast burst reactors used elsewhere in such work), the He-Hg NPL was the first visible nuclear-pumped laser, while the Ne-CO and He-CO^ lasers are the first to provide energy storage on a millisecond time scale. Important potential applications of NPLs include coupling and power transmission from remote power stations such as nuclear plants in satellites and neutron-feedback operation of inertial confinement fusion plants. Final Report Approximately 100 technical reports and articles have resulted from this research. A listing is included in Appendix A and individual reports are referred to in the following discussion according to their report number, i.e., C00-2007-xx. As a result of this work, three nuclear pumped lasers have been developed. This represents one-quarter of the NPLs discovered to date. Research under this contract, initiated in January 1969, was concerned with the development of NPLs. When this work first began, the NPL was viewed as a technique to directly extract energy from a fission reactor. However, as the work progressed, it became apparent that other important applications might develop, e.g. neutron-feedback pumping for laser fusion reactors (see reports C00-2007-86 through 89). This research was first designed at gaining a better understanding of radiation-induced plasmas. This was viewed as a prerequisite for ultimate development of an NPL. Highlights of this phase of the work include:

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“…(Ref. 40,41) Energy storage has been observed In the He-neutral carbon and Neneutral carbon NTLs (Ref. 36,37) at thermal fluxes of <1xlO 15 n/cm 2 -scc.…”

Section: Visible and Near Ir Npi/?_mentioning

confidence: 99%

Advanced methods for nuclear reactor gas laser coupling

Miley¹,

Verdeyen²

1978

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“…, Lyons, et al (1974), McArthur & Tollefsrud, (1975), Helmick et al 1975, Jalufka, et al (1976), Akerman, et al (1977), DeYoung, et al 1977, Prelas, et al (1977), Voinov, et al (1979), Voinov, et al (1979a, Mis'kevich, et al 1980), Rowe, et al (1981).…”

mentioning

confidence: 94%

Nuclear driven flashlamps

Prelas

Boody²,

Miley

et al. 1988

Laser Part. Beams

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Due to the low power density of pumping schemes for nuclear-pumped lasers prior to 1978, a method of utilizing the efficient production of narrow band fluorescence from excimers was developed. This method has since been referred to as a nuclear driven flashlamp. It is possible to achieve sufficient power densities, when combining the flashlamp with novel techniques of reactor/laser interfaces, to drive efficient, high power lasers directly with products from nuclear reactions.

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“…D IRECT nuclear pumping (DNP) by a volume source of fission fragments was first demonstrated by Jalufka et al, 1 using a mixture of 3 He and Ar. Since that time, such pumping was demonstrated at a number of laboratories using various mixtures.…”

Section: Introductionmentioning

confidence: 99%

“…This entails the development of a detailed and self-consistent kinetic model capable of predicting the behavior of the plasma generated by the interaction of the fission fragments with the background gas. As an illustration, the interaction of fission fragments resulting from the 3 He(n,p) 3 H reaction in 3 He-Xe mixtures is considered. Direct nuclear pumping of a 3 He-Xe laser was demonstrated by De Young et al 3 and Mansfield et al 4 In the problem under consideration, both the heavy particles (protons and tritons) and the electrons generated by the interaction of these fission fragments with the background gas play important roles in creating the plasmas; thus, their effects must be considered simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…As an illustration, the interaction of fission fragments resulting from the 3 He(n,p) 3 H reaction in 3 He-Xe mixtures is considered. Direct nuclear pumping of a 3 He-Xe laser was demonstrated by De Young et al 3 and Mansfield et al 4 In the problem under consideration, both the heavy particles (protons and tritons) and the electrons generated by the interaction of these fission fragments with the background gas play important roles in creating the plasmas; thus, their effects must be considered simultaneously. When calculating possible laser transitions resulting from nuclear pumping one has to treat particles in different quantum states as different species and use the multifluid equations to describe the resulting system.…”

Section: Introductionmentioning

confidence: 99%

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Direct Nuclear Pumping by a Volume Source of Fission Fragments

Deese

Hassan

1978

AIAA Journal

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A detailed kinetic model is presented for the analysis of nuclear pumped lasers when the pumping is a result of a volume source of fission fragments. The results of the model are employed to study a 3 He-Xe laser. For the range of the pressures, neutron fluxes, and mixtures considered, the gain and power calculations are in good agreement with experiment. Moreover, based on these calculations, it appears that collisional recombination is the dominant pumping mechanism.

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Nuclear-pumped lasing of 3He-Xe and 3He-Kr

Cited by 46 publications

References 7 publications

Advanced methods for nuclear reactor gas laser coupling

Advanced methods for nuclear reactor gas laser coupling

Nuclear driven flashlamps

Direct Nuclear Pumping by a Volume Source of Fission Fragments

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