Ionic recombination in air

Abstract

83cause. I t is concluded th a t the whole ester molecule contributes to the time constant, and therefore th a t it behaves as a rigid structure and does not simply become deformed in the immediate neighbourhood of the dipole group. This is in agreement with evidence from other sources. The results do not suggest any simple relation between chain length and time constant, and a satisfactory theory to relate them has yet to be found. I n t r o d u c t io nThe fundamental importance of the problem of recombination of ions in gases was appreciated almost as soon as the role of ions as carriers of electric charge in gas conduction was recognized. Indeed it was at one time believed th a t the greater part of the light emitted in the Geissler tube discharge had its origin in the energy resulting from ionic recombination.Rutherford and Thomson were the first to show, and verify experiment ally, th at the rate of decay of ion population by recombination was pro portional to the product of the numbers of ions of either sign. Thus, if we * Musgrave R esearch S tudent, Q ueen's U niversity, Belfast.on May 9, 2018 http://rspa.royalsocietypublishing.org/ Downloaded from

The ion-ion recombination coefficient α: Comparison of temperature- and pressure-dependent parameterisations for the troposphere and lower stratosphere

“…In addition, Gardner (1938) reported the value of 2.1 • 10 -6 cm 3 s -1 for pure oxygen, 1013 hPa and 25 °C. Sayers (1938) reported a value of 2.3 • 10 -6 cm 3 s -1 , while Nolan (1943), who has also reviewed previous works, concluded on 1.4 • 10 -6 cm 3 s -1 . Within a particular uncertainty range, these values do agree quite well and no further ado appears to be necessary to discuss this value.…”

“…where T is in K. Furthermore, Smith and Adams (1982) presented a parameterisation valid for the altitude range of 10 to 60 km;…”

“…This is especially remarkable as Bates (1982) determined αT to be 1.67 • 10 -6 cm 3 s -1 at ground level which is in striking agreement with Israël (1957) (1.6 • 10 -6 cm 3 s -1 ) and Lenz (1932) ((1.7±0.1) • 10 -6 cm 3 s -1 ). Instead, Bates referred to Sayers (1938) (2.3 • 10 -6 cm 3 s -1 ) and Nolan (1943) (1.4 • 10 -6 cm 3 s -1 ) whom he thought to be the first experimenters to quantitatively and accurately determine α. By that time, science was in urgent need of correct and altitude-resolved values for the recombination coefficient.…”

Современное Состояние Вопроса Об Исследованиях Ионосферы. II Микрофизика Ионосферы

“…Теоретических данных, ввиду большой сложно-сти расчётов, по существу, не имеется. Можно рассматривать здесь реакции при участии трёх тел следующих видов: (3)(4)(5)(6)(7)(8)(9)(10)(11)(12) (где Μ-молекула или атом другого сорта) или реакции при уча-стии двух тел: (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13) ,.…”

“…Отметим, что наличие соответствия между географи-ческим распределением п^ и геомагнитными характеристиками (нак-лонением, широтой) уже неоднократно указывалось в литературе (см., например, ссылки 13 · 17 в 1 ). Далее, автор видит подтверждение развиваемой им точки зрения в полусуточных колебаниях слоя F 2 .…”