Author: Jury, A.N.
Paper Title Page
MOPAB062 A Single Dipole Source for Broad-Band Soft Photon Beamlines in Diamond-II 261
 
  • M. Apollonio, G. Cinque, H. Ghasem, A.N. Jury, I.P.S. Martin, R. Rambo
    DLS, Harwell, United Kingdom
  
  Di­a­mond-II is a pro­ject based at Di­a­mond Light Source for an up­grade to­wards a Stor­age Ring char­ac­ter­ized by a re­duc­tion of a fac­tor 20 in its nat­ural emit­tance and a dou­bling of the num­ber of straight sec­tions. At Di­a­mond-II the ma­jor­ity of ex­ist­ing beam­line ca­pac­ity should be main­tained, while en­hanc­ing their per­for­mance thanks to the in­crease in bright­ness at the source points. The sub­stan­tial mod­i­fi­ca­tion of the lat­tice im­poses a like­wise re-de­sign of the broad-band sources, presently based on stan­dard dipoles. In this paper we dis­cuss a pos­si­ble so­lu­tion for the IR/THz beam­line B22 op­er­at­ing within a pho­ton en­ergy range be­tween 1meV and 1eV. This pro­posal, ideal for low crit­i­cal en­ergy and sin­gle source point sources, en­tails the in­ser­tion of a di­pole in one of the newly cre­ated mid-cell straights of the ma­chine, while re­duc­ing the bend­ing power of the nearby gra­di­ent dipoles. After per­form­ing the lin­ear match­ing of the lat­tice, re­pro­duc­ing a com­pa­ra­ble phase ad­vance in the mod­i­fied cell, we stud­ied the non-lin­ear dy­nam­ics of the sys­tem. Com­par­i­son of the main ob­serv­ables (Dy­namic Aper­ture, In­jec­tion Ef­fi­ciency and Life­time) with the base­line case is dis­cussed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB062  
About • paper received ※ 18 May 2021       paper accepted ※ 28 May 2021       issue date ※ 12 August 2021  
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