Search found 14 matches

by Dhital
22 Feb 2021, 09:40
Forum: Momentum Aperture
Topic: Momentum aperture in a two energy storage ring
Replies: 6
Views: 15574

Re: Momentum aperture in a two energy storage ring

Hi Michael, I solved the problem. I need to reset 's' column in the high energy ring twiss file. The integration function otherwise takes the values ranging from 171.7 to 343.4 m in the high energy ring that giving the factor of '2' difference in Touschek lifetime. After doing that, 's' column in th...
by Dhital
02 Feb 2021, 12:15
Forum: Momentum Aperture
Topic: Momentum aperture in a two energy storage ring
Replies: 6
Views: 15574

Re: Momentum aperture in a two energy storage ring

Hi Michael, Thank you so much for your reply. Now I am able to get Touschek's lifetime for each ring. I have used the analytical formula (formula attached in the previous post) to calculate the lifetime in each ring. And also I use ELEGANT to calculate the corresponding tLifetime for each ring. The ...
by Dhital
29 Nov 2020, 16:29
Forum: Momentum Aperture
Topic: Momentum aperture in a two energy storage ring
Replies: 6
Views: 15574

Re: Momentum aperture in a two energy storage ring

Hi Michael, Thank you so much for your reply. It is of great help. But, how to calculate Touschek's lifetime in this case? What is the formula that Elegant does use to calculate Touschek's lifetime? After running the momentum aperture simulation for the whole ring, I separate the momentum aperture f...
by Dhital
12 Oct 2020, 10:19
Forum: General
Topic: Injection Efficiency
Replies: 4
Views: 5499

Re: Injection Efficiency

Hi Michael,

Now, it works. Thank you so much.

Sincerely,
Bhawin
by Dhital
12 Oct 2020, 08:02
Forum: Momentum Aperture
Topic: Momentum aperture in a two energy storage ring
Replies: 6
Views: 15574

Momentum aperture in a two energy storage ring

Hi Michael, I am having trouble to calculate the momentum aperture and Touschek's lifetime in a two-energy storage ring. We have two rings connected through SRF cavities. Low energy ring (150 MeV) and High energy ring (1000 MeV) are connected by SRF cavities which first accelerates the beam and then...
by Dhital
30 Jul 2020, 16:36
Forum: General
Topic: Injection Efficiency
Replies: 4
Views: 5499

Re: Injection Efficiency

Hi Michael, Using this example I tried the following but unable to get output for each interval. It printout each turns instead of specific turns. &run_setup lattice = SR_1000MeV.lte, use_beamline = SR_cooler, p_central = 293.54100292171, parameters = "%s.param", ! rootname = <rootname> default_orde...
by Dhital
27 May 2020, 17:55
Forum: Ring Tracking
Topic: Damped emittance and right time of flight
Replies: 1
Views: 1660

Damped emittance and right time of flight

Hi Michael, What is the right way to set up Synchrotron Radiation and Quantum Excitation effect in a ring? I m trying to estimate equilibrium damped emittance from tracking in a dual-energy storage ring. I am using the following: &alter_elements name=*, type=CSBEND, item=N_KICKS, value=150, allow_mi...
by Dhital
20 Nov 2019, 10:40
Forum: Ring Tracking
Topic: Longitudinal phase space tracking in dual energy storage ring
Replies: 2
Views: 2697

Re: Longitudinal phase space tracking in dual energy storage ring

Hi Michael, Last time you suggested to use "magnify" element to make (x,x')=0 for the longitudinal study. That works. But what if you decided to see the effect of synchrotron radiation? If (x,x')!=0, then particles get lost after few number of passes in the ring. I have attached lattice file and ele...
by Dhital
04 Nov 2019, 16:04
Forum: Ring Tracking
Topic: Longitudinal phase space tracking in dual energy storage ring
Replies: 2
Views: 2697

Longitudinal phase space tracking in dual energy storage ring

Dear All, I have a dual energy storage ring, one ring at lower energy and another at higher energy connected by RF. I tried single particle tracking and found that after certain passes, particle gets lost. However, applying "magnify" element after the RF cavity ( to make transverse co-ordinates zero...
by Dhital
12 Jul 2019, 12:38
Forum: Linac Tracking
Topic: RF cavities set-up for two energy rings
Replies: 0
Views: 8266

RF cavities set-up for two energy rings

Hi, I am getting trouble with RF cavities set-up in my two energy storage ring lattice file. Line=(Low energy ring(55 MeV), accelerating cavity1, accelerating cavity2, High energy ring(155 MeV), decelerating cavity1, decelerating cavity2) I am using matrices to represent low energy ring and high ene...