"Glos\u00EDk, Juraj" . "ION TRAP STUDIES OF H- + H -> H-2 + e(-) BETWEEN 10 AND 135 K"@en . . . . "000302175500022" . . "P(GA202/07/0495), P(GA202/09/0642), P(GA205/09/1183), P(GAP209/12/0233), P(OC10046), S, Z(MSM0021620834)" . "Pla\u0161il, Radek" . . . . "6"^^ . . . "142990" . . "[0BD0B673E19A]" . "Zymak, Illia" . . "molecular processes; methods: laboratory; early Universe; atomic processes; astrochemistry"@en . "Gerlich, Dieter" . "ION TRAP STUDIES OF H- + H -> H-2 + e(-) BETWEEN 10 AND 135 K"@en . "1" . "6"^^ . . "Zymak, Illia" . "749" . . . . "RIV/00216208:11320/12:10130596!RIV13-GA0-11320___" . . "Astrophysical Journal" . . "6"^^ . "ION TRAP STUDIES OF H- + H -> H-2 + e(-) BETWEEN 10 AND 135 K" . . "Thermal rate coefficients for forming H-2 via associative detachment in H- + H collisions were determined using the combination of a 22-pole ion trap (22PT) with a skimmed effusive beam of atomic hydrogen penetrating the ion cloud. The temperature of both reactants have been varied independently (ion trap: T-22PT = 10-150 K, neutral beam accommodator T-ACC = 10, 50, 120 K). Using various combinations, the temperature range between 10 and 135 K has been accessed for the first time experimentally. The effective number density of H (typically some 10(8) cm(-3)) is determined in situ via chemical probing with CO2+ ions. With decreasing temperature, the measured thermal rate coefficients decrease slowly from 5.5 x 10(-9) cm(3) s(-1) at 135 K to 4.1 x 10(-9) cm(3) s(-1) at 10 K. The relative error is 10%, while the absolute values may deviate systematically by up to 40%, due to uncertainties in the calibration reaction. Significant improvements of the versatile and sensitive experiment are possible, e. g., by using electron transfer from H to D+ as calibration standard." . . "Jusko, Pavol" . . . "11320" . "RIV/00216208:11320/12:10130596" . "0004-637X" . . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . . "10.1088/0004-637X/749/1/22" . "Thermal rate coefficients for forming H-2 via associative detachment in H- + H collisions were determined using the combination of a 22-pole ion trap (22PT) with a skimmed effusive beam of atomic hydrogen penetrating the ion cloud. The temperature of both reactants have been varied independently (ion trap: T-22PT = 10-150 K, neutral beam accommodator T-ACC = 10, 50, 120 K). Using various combinations, the temperature range between 10 and 135 K has been accessed for the first time experimentally. The effective number density of H (typically some 10(8) cm(-3)) is determined in situ via chemical probing with CO2+ ions. With decreasing temperature, the measured thermal rate coefficients decrease slowly from 5.5 x 10(-9) cm(3) s(-1) at 135 K to 4.1 x 10(-9) cm(3) s(-1) at 10 K. The relative error is 10%, while the absolute values may deviate systematically by up to 40%, due to uncertainties in the calibration reaction. Significant improvements of the versatile and sensitive experiment are possible, e. g., by using electron transfer from H to D+ as calibration standard."@en . . "ION TRAP STUDIES OF H- + H -> H-2 + e(-) BETWEEN 10 AND 135 K" . "Gerlich, Dieter" . . . . . "Rou\u010Dka, \u0160t\u011Bp\u00E1n" . "http://dx.doi.org/10.1088/0004-637X/749/1/22" .