Spectrum of discharges and afterglow with coal electrodes.
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Fig. 1. Spectrum dynamics of discharge and afterglow in the presence of copper addition (red-orange ranges). Reference lines: orange (from the right) - HgII 615 nm, red - HeI 667,8 nm.
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Fig. 2. Spectrum dynamics under minimal copper addition (orange-green ranges). Reference lines: orange - HgII 615 nm, orangeyellow - HeI 587,6 nm, left yellow - HgI 578,97nm and 579,07 nm, right yellow - HgI 576,96 nm, green - HgI 546,07 nm.
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Fig. 3. Spectrum dynamics in orange-green ranges in the presence of copper as main addition and aluminium as extra (spectrograph slot of duraluminium). Reference line: orange - HgII 615 nm, orangeyellow - HeI 587,6 nm, left yellow - HgI 578,97nm and 579,07 nm, right yellow - HgI 576,96 nm, green - HgI 546,07 nm.
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Fig. 4. Spectrum dinamics in
green-blue ranges under minimal copper addition. Reference lines: green -
HgI 546,07 nm, left lightblue - HeI 501,57 nm, right lightblue -
HgI 491,6 nm, blue - HeII 468,6 nm.
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Fig. 5. Spectrum dynamics in green-blue ranges in the presence of copper as main addition and aluminium as extra (spectrograph slot of duraluminium). Reference line: green - HgI 546,07 nm, left lightblue - HeI 501,57 nm, right lightblue - HgI 491,6 nm, blue - HeII 468,6 nm.
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Fig. 6. Spectrum dynamics in the nearest UV,violet and blue ranges. Reference lines: left blue - HeI 447,15 nm, right blue - HgI 435,83 nm, violet - HgI 404,66 nm, UV - HeI 388,86 nm.
Reference
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