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3 July 2025

• 17:4017:40, 3 July 2025 Aston 1922/Chapter 5 (hist | edit) [43,853 bytes] Kkmurray (talk | contribs) (Created page with "===30. Limitations of the parabola method=== The parabola method of analysis of positive rays described in Chapter III, though almost ideal for a general survey of masses and velocities, has objections as a method of precision, many rays are lost by colUsion in the narrow canal-ray tube ; the mean pressure in which must be at least half that in the discharge-bulb ; very fine tubes silt up by disintegration un...")
• 17:3917:39, 3 July 2025 Aston 1922/Chapter 4 (hist | edit) [19,522 bytes] Kkmurray (talk | contribs) (Created page with "===23. Positive Ray Analysis of Neon=== It is a curious and interesting point that while the first suggestion of the possi- bility of the occurrence of isotopes was obtained from the rarest of all substances on the earth's surface the radio= active elements and their products ; so the first result indicating the possibility of isotopes among the stable elements was yielded by neon, a gas of which, in a purifi...")
• 17:3717:37, 3 July 2025 Aston 1922/Contents (hist | edit) [7,651 bytes] Kkmurray (talk | contribs) (Created page with "==CONTENTS== CHAPTER I Introduction 1. Introduction ..... 2. Hypothesis of Dalton and Prout 3. Crookes' Meta-elements . 4. The discovery of Isotopes PAGE 1 2 4, 6 CHAPTER II The Radioactive Isotopes 5. Chemical identities among the radioactive elements 6. Spectroscopic identity of isotopes . 7. The chemical law of Radioactive change 8. Isobares ...... 9. The Radioactive Transformations . 10. The Atomic we...") originally created as "Aston 2022/Contents"
• 17:2917:29, 3 July 2025 Aston 1922/Chapter 3 (hist | edit) [23,371 bytes] Kkmurray (talk | contribs) (Created page with "==CHAPTER III - POSITIVE RAYS== ===14. Nature of Positive Rays=== Positive rays were dis- covered by Goldstein in 1886 in electrical discharge at low pressure. In some experiments with a perforated cathode he noticed streamers of Hght behind the perforations. This luminosity, he assumed, was due to rays of some sort which travelled in the opposite direction to the cathode rays and so passed through the apertures i...") originally created as "Aston 2022/Chapter 3"
• 17:2417:24, 3 July 2025 Aston 1922/Chapter 2 (hist | edit) [30,856 bytes] Kkmurray (talk | contribs) (Created page with " ==CHAPTER II - THE RADIOACTIVE ISOTOPES== ===5. Chemical identities among the radioactive elements=== Apart from the purely speculative considerations which have aheady been detailed, the theory of isotopes had its birth in the gigantic forward wave of human knowledge inaugurated by the discovery of radioactivity. It can admit- tedly be argued that, even if no radioactive elements existed, isotopes would inevitably...")

2 July 2025

• 21:4721:47, 2 July 2025 Aston 1922/Chapter 1 (hist | edit) [13,013 bytes] Kkmurray (talk | contribs) (Created page with " ==1. Introduction== Towards the end of the last century the attitude of science in relation to the atomic theory started= to undergo a complete and radical change. What had been before regarded as a convenient working hypothesis became with remarkable rapidity a definite statement of fact. This transformation is now complete and in any well- equipped laboratory to-day not only can individual atoms be detected but the movements of the swiftest of them can be tracked and...") originally created as "Aston 1922 Chapter 1"

30 June 2025

• 16:3416:34, 30 June 2025 Aston 1922 (hist | edit) [2,687 bytes] Kkmurray (talk | contribs) (Created page with "=ISOTOPES= F. W. ASTON, M.A., D.Sc, A.I.C., F.R.S. Fellow of Trinity College, Cambridge LONDON EDWARD ARNOLD & CO. 1922 [All rights reserved] Printed in Great Britain ==PREFACE== I HAVE undertaken the preparation of this book on Isotopes in response to many requests made to me by teachers of physics= and chemistry and others working in these subjects that I should publish the results obt...")

28 June 2025

• 17:1317:13, 28 June 2025 American Society for Testing and Materials (hist | edit) [74 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}} ==See also== *ASTM International")
• 17:1217:12, 28 June 2025 ASTM (hist | edit) [54 bytes] Kkmurray (talk | contribs) (Created page with "{{acr|American Society for Testing and Materials}}")
• 17:1017:10, 28 June 2025 Sector magnetic field (hist | edit) [29 bytes] Kkmurray (talk | contribs) (Redirected page to Magnetic sector) Tag: New redirect
• 17:0917:09, 28 June 2025 Translational energy-to-charge ratio (hist | edit) [8 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}")
• 17:0917:09, 28 June 2025 Momentum-to-charge ratio (hist | edit) [8 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}")
• 17:0917:09, 28 June 2025 Associative combination (hist | edit) [8 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}")
• 17:0917:09, 28 June 2025 Translational spectroscopy (hist | edit) [8 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}")

11 June 2025

• 17:1217:12, 11 June 2025 Trapped ion mobility spectroscopy (hist | edit) [32 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}{{ext}}10.1063/1.3665933")
• 16:2816:28, 11 June 2025 Charge exchange (hist | edit) [83 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}} ==See also== *Charge exchange reaction *Charge exchange ionization")

10 June 2025

• 17:3917:39, 10 June 2025 Electrostatic linear ion trap (hist | edit) [41 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}")
• 17:3917:39, 10 June 2025 ELIT (hist | edit) [41 bytes] Kkmurray (talk | contribs) (Created page with "{{acr|electrostatic linear ion trap}}")
• 17:3817:38, 10 June 2025 Multiple ion charge extraction (hist | edit) [43 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}{{ext}}10.1021/acs.analchem.3c05087")
• 17:3717:37, 10 June 2025 MICE (hist | edit) [42 bytes] Kkmurray (talk | contribs) (Created page with "{{acr|multiple ion charge extraction}}")
• 16:1416:14, 10 June 2025 Glow discharge mass spectrometry (hist | edit) [52 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}} ==See also== *Glow discharge ionization")
• 16:1316:13, 10 June 2025 GDMS (hist | edit) [44 bytes] Kkmurray (talk | contribs) (Created page with "{{acr|glow discharge mass spectrometry}}")
• 16:1216:12, 10 June 2025 Process mass spectrometer (hist | edit) [44 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}")
• 16:1116:11, 10 June 2025 PMS (hist | edit) [37 bytes] Kkmurray (talk | contribs) (Created page with "{{acr|process mass spectrometer}}")

9 June 2025

• 10:5810:58, 9 June 2025 Fixed radial electric field (hist | edit) [8 bytes] Kkmurray (talk | contribs) (Created page with "{{stub}}")

8 June 2025

• 18:3118:31, 8 June 2025 NMS (hist | edit) [36 bytes] Kkmurray (talk | contribs) (Created page with "{{acr|native mass spectrometry}}")