Talk:Rutherford backscattering spectrometry

message: Hi,
I think the first part of the diagram is misleading. If the positively charged nuclear particles were evenly distributed throughout the plum pudding then that model predicts there would be a "significant" proportion of the "projected" alpha particles deflected from a straight path. So on the receiving surface one would see light flashes scattered over a "significant" area - the angle of deflection dependent on how close the alpha particles came to the positively charged nuclear particles (I can't remember if protons were named at that time or if neutrons had been proposed).
Anyway, what Rutherford's assistants saw was that most of the light flashes were on a path that indicated there was no deflection of the alpha particles by the atoms. Hence the deduction was the gold(?) atoms were mainly "empty space". 
The clincher for a mainly empty space but with concentrated nucleus was the detection of a few "bounced back" alpha particles. Hence the interpretation of the highly concentrated positive nucleus.
Most people when they tell the story concentrate on the "bounced back" "shell at tissue paper" part of the interpretation , but the lack of deflection of the alpha particles is just as significant in providing evidence of the nuclear model.
Now ..... my point about the entry is .... the first part of the diagram (plum pudding) should show a "significant" proportion of the paths of the alphas particles being deflected by the positive particles in the nucleus - not passing straight through as in the current version of the picture. 
Apart from that, I like the way the diagram is drawn and put together the compare and contras the plum pudding and nuclear models.
Clive long 07:58, 17 October 2007 (UTC)
thread_title: Geiger Marsden diagram - plum pudding misleading

message: The differential cross-section of the backscattering is missing the prefactor \frac{1}{4\pi \epsilon_0} .. and don't tell me it's in atomic units, as there would be no e^2 then. --MarsmanRom  —Preceding unsigned comment added by 141.20.43.124 (talk) 09:55, 7 February 2008 (UTC)
thread_title:  Factor missing 

message: I have reverted an edit which changed a formula because the person who changed it has only three edits and the other two were obviously bad. I have not looked at the formula itself to determine what is actually correct. Somebody who has access to the referenced material should check this. Here is the diff of my revert: . --DanielRigal (talk) 00:02, 13 June 2009 (UTC)
thread_title:  Please check 

message: I find three names for this technique, "Rutherford backscattering spectroscopy", "Rutherford backscattering spectrometry", and "Rutherford backscattering". Chu , Burrow , and Young  says "spectrometry". Kimura , Metzner , and Cherniak  says "spectroscopy".
Many others say simply "Rutherford backscattering" without the third word. Anybody have any comment on this? Are these all equally valid? Personally, I tend to find "spectro-" a little odd, because the technique is not related to optics. --朝彦 (Asahiko) (talk) 08:06, 4 February 2010 (UTC)
thread_title:  Spectroscopy or Spectrometry? 

message: * Rutherford Backscattering Spectrometry Theory Tutorial
* Rutherford Backscattering Instrumentation Tutorial
* RUMP - program for the simulation and analysis of RBS and ERD
* SIMNRA - program for the simulation and analysis of RBS, ERD and NRA
* DataFurnace - program for the simulation and analysis of RBS, ERD, NRA, PIXE and PIGE
* NDF - free version of NDF (the calculation engine underlying DataFurnace) for the simulation of RBS, ERD and NRA
* EXFOR - Experimental nuclear reaction data library IAEA coordinated data library for microscopic experimental nuclear reaction data including Rutherford backscattering cross sections
* IBANDL - ion beam analysis nuclear data library IAEA hosted and sponsored database of scattering cross-sections relevant to RBS and other IBA techniques
* SigmaCalc IAEA hosted and sponsored site where evaluated elastic (non-Rutherford) scattering cross-sections can be calculated from Schrödinger's equation for any scattering angle.
* IBAsoft - Site including all simulations of the IAEA intercomparison of IBA software
* DEPTH - program to calculate the energy spread of detected particles from all depths in the target, and from causes including energy straggling, multiple scattering, and geometrical and kinematical broadening
* SRIM - the stopping and range of ions in matter - program to calculate stopping powers from tabulated parameters,  based on a very large number of experimental measurements, evaluated (and interpolated) theoretically
* MSTAR - large collection of stopping powers, including a program to calculate heavy ion stopping
ツStacey (talk) 16:25, 26 December 2015 (UTC)
thread_title:  External links content to be put into article prose? 

message: The first paragraph should at least have one line explaining what can be gained from RBS. If I'm checking if this method can help me get, say, the doping profile, I should be able to get the information quickly, without reading in depth the entire article. It is not clear at all what is being measured and what info is gained.  — Preceding unsigned comment added by Shovalzo (talk • contribs) 06:51, 11 September 2016 (UTC)
thread_title:  A better starting paragraph