Search found 13 matches
- 10 Feb 2022, 05:40
- Forum: Ring Tracking
- Topic: problem in inserting quadrupole strength error
- Replies: 2
- Views: 5278
Re: problem in inserting quadrupole strength error
Dear Michael, Thanks a lot. Now I got where I was doing mistake. I tried with & bunched beam & end , & track & end . Even though it was not plotting betabeat. But it now gives betabeat because of "output_at_each_step = 1" in the twiss_output module, which I missed. Thanks once again. With regards Sa...
- 04 Feb 2022, 00:22
- Forum: Ring Tracking
- Topic: problem in inserting quadrupole strength error
- Replies: 2
- Views: 5278
problem in inserting quadrupole strength error
Dear Michel, I am puzzeled with a somewhat basic problem. i.e. when I provide quadrupole strength error in quadrupole, it does not gives any change in beta in twiss output file, not producing any beta beat. I feel my way of input is not applying the error. please tell me where I may be doing mistake...
- 06 Dec 2021, 05:29
- Forum: Ring Tracking
- Topic: Beam ion interaction using IONEFFECTS element
- Replies: 16
- Views: 15175
Re: Beam ion interaction using IONEFFECTS element
Saroj, In plotting the ion density with the scripts, it does not plot the ion density since beginning. Please find the figure in the attachment. The script plots the ion density at the end of each turn. So for your case, it looks like the density is near its maximum after a single turn. I am using ...
- 29 Nov 2021, 00:04
- Forum: Ring Tracking
- Topic: Beam ion interaction using IONEFFECTS element
- Replies: 16
- Views: 15175
Re: Beam ion interaction using IONEFFECTS element
Helo Joe, I plot the instability amplitude as per the script you have mentioned in previous reply. The instablity amplitude increases beyond 1 or 2 times beam size, which is not following the theoritical prediction perhaps. Please find the figure of instability amplitude vs turn which shows it incre...
- 18 Nov 2021, 00:37
- Forum: Ring Tracking
- Topic: Beam ion interaction using IONEFFECTS element
- Replies: 16
- Views: 15175
Re: Beam ion interaction using IONEFFECTS element
Dear Joe, Thanks a lot for answering my querries. In plotting the ion density with the scripts, it does not plot the ion density since beginning. Please find the figure in the attachment. I am using the latest version 2021.3.0 . I have checked with fractionional intensities in generating bunch train...
- 08 Nov 2021, 23:11
- Forum: Ring Tracking
- Topic: Beam ion interaction using IONEFFECTS element
- Replies: 16
- Views: 15175
Beam ion interaction using IONEFFECTS element
I am studying beam –ion instability for a ultra-low emittance storage ring and I am using Pelegant recent version (2021.3) for this. I have referred your article “Modeling ion effects for the Argonne Advanced Photon Source upgrade”, PRAB 2019. I tried with example file of APS U. I have few query reg...
- 14 Sep 2021, 01:57
- Forum: General
- Topic: Ion effects in storage ring
- Replies: 2
- Views: 3391
Re: Ion effects in storage ring
prpM.txt Dear Michael, Thanks for fixing the sdds file. And with that file, the ioneffects command run nicely. However, I couldn't understand the first part, i.e. the procedure to fix the file. I convert the prprofileMore.sdds to plain data with command plaindata2sdds and got one text file which is...
- 30 Aug 2021, 07:30
- Forum: General
- Topic: Ion effects in storage ring
- Replies: 2
- Views: 3391
Ion effects in storage ring
I am studing the beam ion interaction for a high brightness storage ring using IONEFFECTS module of ELEGANT version 2020.5. I am facing the errors of job aborted. I couldn't understand why it happens. I tried by reducing number of turns to be tracked and no. of macro particles, no. of particles in a...
- 16 Apr 2021, 01:15
- Forum: Ring Tracking
- Topic: deflection_map of BUMPER
- Replies: 3
- Views: 5428
Re: deflection_map of BUMPER
Dear Michael I am studying the beam injection using a nonlinear kicker (NLK). Is there any provision to input deflection vs x directly. I generate a profile for deflection angle vs x for the NLK in which beam would experience 0.7 mrad kick at -4.9 mm. After going through the previously answered simi...
- 06 Dec 2020, 23:15
- Forum: General
- Topic: Injection optimization
- Replies: 6
- Views: 6528
Re: Injection optimization
Actually I was using elegant version 2019.1.1, in which it was giving error. Now I used latest version 2020.4 in which the optimization using nLost is working fine.
Thanks and regards
Saroj Jena
Thanks and regards
Saroj Jena