Author: Woods, K.E.
Paper Title Page
WEPWA081 Status of the Praseodymium Undulator with Textured Dysprosium Poles for Compact X-Ray FEL Applications 2298
 
  • F.H. O'Shea, R.B. Agustsson, Y.C. Chen, T.J. Grandsaert, A.Y. Murokh, K.E. Woods
    RadiaBeam, Santa Monica, USA
  • J. Park, R.L. Stillwell
    NHMFL, Tallahassee, Florida, USA
  • V. Solovyov
    BNL, Upton, Long Island, New York, USA
  
  The de­mand for high-bright­ness hard x-ray fluxes from next gen­er­a­tion light sources has spurred the de­vel­op­ment of in­ser­tion de­vices with shorter pe­ri­ods and higher fields than is fea­si­ble with con­ven­tional ma­te­ri­als and de­signs. Ra­di­a­Beam Tech­nolo­gies is cur­rently de­vel­op­ing a novel high peak field, ul­tra­short pe­riod un­du­la­tor with praseodymium-iron-boron (PrFeB) per­ma­nent mag­nets and tex­tured dys­pro­sium (Tx Dy) fer­ro­mag­netic field con­cen­tra­tors. This de­vice will offer an un­par­al­leled so­lu­tion for com­pact x-ray light sources, as well as for de­mand­ing ap­pli­ca­tions at con­ven­tional syn­chro­tron ra­di­a­tion sources. A 1.4T on-axis field has al­ready been achieved in a 9mm pe­riod un­du­la­tor, demon­strat­ing the fea­si­bil­ity of using Tx Dy poles in a hy­brid un­du­la­tor con­fig­u­ra­tion with PrFeB mag­nets. Facets of the un­du­la­tor de­sign, op­ti­miza­tion of the Tx Dy pro­duc­tion and char­ac­ter­i­za­tion process, and mag­netic mea­sure­ments of Tx Dy will be pre­sented.  
 
THPWA050 Beam Conditioning System for Laser-driven Hadron Therapy 3743
 
  • K.E. Woods, S. Boucher, F.H. O'Shea
    RadiaBeam, Santa Monica, USA
  • B.M. Hegelich
    The University of Texas at Austin, Austin, Texas, USA
  
  While the su­pe­rior ther­a­peu­tic ef­fi­cacy of hadron ther­apy has been clearly demon­strated, its avail­abil­ity to can­cer pa­tients is lim­ited by the cost and size of cur­rent sys­tems. Ra­di­a­Beam Tech­nolo­gies, in col­lab­o­ra­tion with the UCLA De­part­ment of Ra­di­a­tion On­col­ogy and the Uni­ver­sity of Texas at Austin, is propos­ing the uti­liza­tion of in­no­v­a­tive laser-dri­ven ion ac­cel­er­a­tion (LDIA) tech­nol­ogy for the de­vel­op­ment of a com­pact, in­ex­pen­sive pro­ton ther­apy sys­tem that can ul­ti­mately be adapted for the ac­cel­er­a­tion of car­bon ions. At less than a third the price of the av­er­age pro­ton ther­apy unit, the re­al­iza­tion of this sys­tem would make hadron ther­apy a much more re­al­is­tic op­tion for hos­pi­tals and clin­ics world­wide. How­ever, LDIA pro­duces a beam with large di­ver­gence, wide en­ergy spread with mul­ti­ple ion species, and a sig­nif­i­cant back­ground of elec­trons and X-rays. Thus, a major chal­lenge for clin­i­cal im­ple­men­ta­tion of LDIA is the de­vel­op­ment of a post-tar­get beam con­di­tion­ing sys­tem for col­li­ma­tion, fo­cus­ing, en­ergy se­lec­tion, back­ground shield­ing, and scan­ning. This paper will dis­cuss the progress of our de­sign of such a sys­tem and plans for fu­ture test­ing.  
 
THPWA051 Compact, Inexpensive X-band Linacs as Radioactive Isotope Source Replacements 3746
 
  • S. Boucher, R.B. Agustsson, L. Faillace, J.J. Hartzell, A.Y. Murokh, A.V. Smirnov, S. Storms, K.E. Woods
    RadiaBeam, Santa Monica, USA
  
  Funding: Work supported by DNDO Phase II SBIR HSHQDC-10-C-00148 and DOE Phase II SBIR DE- SC0000865.
Ra­dioiso­tope sources are com­monly used in a va­ri­ety of in­dus­trial and med­ical ap­pli­ca­tions. The US Na­tional Re­search Coun­cil has iden­ti­fied as a pri­or­ity the re­place­ment of high-ac­tiv­ity sources with al­ter­na­tive tech­nolo­gies, due to the risk of ac­ci­dents and di­ver­sion by ter­ror­ists for use in Ra­di­o­log­i­cal Dis­per­sal De­vices (“dirty bombs”). Ra­di­a­Beam Tech­nolo­gies is de­vel­op­ing novel, com­pact, in­ex­pen­sive lin­ear ac­cel­er­a­tors for use in a va­ri­ety of such ap­pli­ca­tions as cost-ef­fec­tive re­place­ments. The tech­nol­ogy is based on the Mi­croLinac (orig­i­nally de­vel­oped at SLAC), an X-band lin­ear ac­cel­er­a­tor pow­ered by an in­ex­pen­sive and com­monly avail­able mag­netron. Pro­to­types are cur­rently under con­struc­tion. This paper will de­scribe the de­sign, en­gi­neer­ing, fab­ri­ca­tion and test­ing of these linacs at Ra­di­a­Beam. Fu­ture de­vel­op­ment plans will also be dis­cussed.