Mixtures of Rare Gases and Metal Vapors

Mixtures of rare gases with metal vapors are considered to be promising media for NPLs (see Chap. 3, Sect. 3.1), thus the studies that investigated their spectral — luminescence characteristics are of great interest. Unfortunately, the number of such studies is not great (see Table 4.14), and the information obtained refers to active media operating at comparatively low temperatures (up to ~800 K).

Table 4.14 Experimental research on radioluminescent characteristics of mixtures of rare gases and metal vapors

Gas medium (excitation method)

Spectral range, nm

Pressure, atm (temperature, K)

Basic results

Works

cited,

Ref.

3He-Cd(Hg, Cs), 3He-Kr-Hg (reaction products 3He(n, p)3H)

360-660

1 (<720)

Relative intensities of 9 lines of Cdl and CdII, 6 lines of Hgl and HgII, 17 lines CsI and CsII

[96, 97]

3He-Cd (products of reaction 3He(n, p)3H)

270-860

0.86 (630)

Relative intensities of 27 lines of CdI and CdII

[98]

3He-Cd(Zn, Hg, Na, K, Cs) (products of reaction 3He(n, p)3H)

300-900

1 (<770)

Survey spectra and discussion of level populating mechanisms

[99, 100]

3He-Cs (products of reaction 3He(n, p)3H)

300-900

0.86 (<770)

Registered 25 lines of CsI and 29 lines of CsII

[101]

He-Cd (fission

fragments of 252Cf)

200-600

1.5-5 (<670)

Analysis of kinetics of 12 lines of CdII, clarifica tion of the kinetics of processes in the mixture He-Cd

[102, 103]

3He-Na (products of the

reaction He(n, p)3H)

300-850

0.3-1

(840-940)

Analysis of the possibility of creating an effective source of spontaneous radiation

[104]

(He)-Xe(Kr)-Hg with impurities N2, H2 and D2 (a particles of 239Pu

and 210Po; products of the reaction 3He(n, p)3H)

200-830

0.8 (<650)

Determination of the mechanism of formation of inverse population on the transitions 73S1-63 P0,i,2 of a mercury atom

[105, 106]