Transverse Resonance Island Buckets at the Mls and Bessy Ii

نویسندگان

  • M. Ries
  • J. Feikes
  • T. Goetsch
  • P. Goslawski
  • J. Li
  • M. Ruprecht
  • A. Schälicke
  • G. Wüstefeld
چکیده

By operating the Metrology Light Source (MLS) near horizontal resonances (∆Qx = 1/2, 1/3 or 1/4), two, three or four resonance island buckets may be populated for beam storage. This paper presents experimental results and operational experience such as tuning the machine for high current, controlling inter-bucket diffusion rates, improving overall lifetime and extraction of radiation pulses with subrevolution repetition rate. First approaches to transfer this mode of operation to the BESSY II storage ring will also be presented.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Resonance Island Experiments at Bessy Ii for User Applications∗

Beam storage close to a tune resonance (ΔQx = 1/3, 1/4) can generate resonance island buckets in the x, x ′ phase space providing a second stable island orbit winding around the standard orbit. Experiments with such an operationmode have been conducted at BESSY II and the Metrology Light Source (MLS) [1,2]. The two orbits are well separated, with good life time and stability. Such operation mod...

متن کامل

Status of Transverse Resonance Island Buckets as Bunch Separation Scheme∗

Beam storage close to a tune resonance (e.g. ∆Qx = 1/3) can generate Transverse Resonance Island Buckets (TRIBs) in the x, x ′ phase space providing a second stable island orbit winding around the standard orbit. For users this mode is offered as the “Twin Orbit Mode”. The two orbits can be well separated, with good life time and stability. The bunch fill pattern of the second orbit can, to som...

متن کامل

Optics Calibration at the Mls and at Bessy Ii

In this paper we present the results of our studies employing LOCO and MML for optics calibration at the MLS and at the BESSY II storage rings. Both the standard user modes and dedicated low alpha modes are analyzed.

متن کامل

Beam Lifetime Optimization by Adjusting the Sextupoles at the Mls and Bessy

The Metrology Light Source (MLS) is a dedicated electron storage ring for metrology applications with three families of sextupoles. The existing setting of the three independently powered sextupole families respective to lifetime were roughly determined by scanning their strengths against each other. As a flexible machine the sextupole families of the MLS can be regrouped into new families, whi...

متن کامل

Particle Swarm Optimization Algorithm Applied in Online Commissioning at the Mls and Bessy Ii

Particle Swarm Optimization (PSO) is a population based optimization technique inspired by the social behaviour of bird flocking [1]. This algorithm has been successfully used for beam dynamics simulations due to its excellent capability to deal with large-dimensional optimization problems [2, 3]. At the MLS and BESSY II PSO was first successfully applied to improve the lifetime by 20 ~ 30% wit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015