stephenbrooks.orgForumMuon1GeneralSome new pages (back at work)
 Stephen Brooks2002-06-20 16:52:32 I was back at the laboratory this week (and will be for most of the next).  Two URLs may be of interest.http://stephenbrooks.org/ral/report/ Displays work-in-progress of a report I'm writing on all this.http://stephenbrooks.org/ral?muon1Displays the files on a web-based backup I keep of my work HDD.While writing the report I was thinking about the irritating random behavior (see section 2.2.3) caused by the pion decay and I'm considering various options for changing the simulation to reduce this.  I also noticed than an equation I was using to calculate the motion of the particles simplified algebraically, getting rid of a pesky sqrt() evaluation.  But I tested the speed of that and it is only negligably faster.  There might be a version 4.12 once I've made up my mind what I'm going to change."As every 11-year-old kid knows, if you concentrate enough Van-der-Graff generators and expensive special effects in one place, you create a spiral space-time whirly thing, AND an interesting plotline"[This message was edited by Stephen Brooks on 2002-Jun-21 at 16:05.][This message was edited by Stephen Brooks on 2002-Jun-21 at 16:06.]
 gogomaus2002-06-21 13:50:37 Stephen, thatÂ´s really great !Having a look over your shoulder to see actual work/report in progress.Thanks a lot for your open mind.I hardly dare to indicate two "mistakes".One refers to decay time of pions+ to muons+. To my knowledge 26 ns is the value of _mean_ life time = the decay to 1/e and not to 1/2.The other issue concerns the 3 "clones" of user scottsaxman within your result overview table...
 Stephen Brooks2002-06-21 16:04:03 Err you've got me worried temporarily about that 1/e vs. 1/2 thing.  I think all timescales quoted are half-lifes to 1/2 rather than "characteristic" lifetimes to 1/e but I'll re-check with the place I got the data from.Aha nope - from the very facility where I work comes this page...http://www.isis.rl.ac.uk/muons/index.htm?content_area=/muons/muonsIntro/isisMuons/isisMuons.htm&side_nav=/muons/muonsSideNav.htm&...which states the half-life to be 26.0 ns.Scottsaxman.  I'll look into it."As every 11-year-old kid knows, if you concentrate enough Van-der-Graff generators and expensive special effects in one place, you create a spiral space-time whirly thing, AND an interesting plotline"
 Stephen Brooks2002-06-25 15:13:08 Ok that's fixed [bumps this thread to the top again]"As every 11-year-old kid knows, if you concentrate enough Van-der-Graff generators and expensive special effects in one place, you create a spiral space-time whirly thing, AND an interesting plotline"
 Helix_Von_Smelix2002-06-28 07:09:40 small point i know, but,,,,,,, you may want to ask someone about the information that you have given people access to, with regard to the data protection act.  You could be in deep do do!!!!!  Best of luck If you make instant coffee in to a microwave do you go back in time??