Author: Hannon, F.E.
Paper Title Page
WEPAB254 Design of a 10 MeV Beamline at the Upgraded Injector Test Facility for e-Beam Irradiation 3232
 
  • X. Li, H. Baumgart, G. Ciovati
    ODU, Norfolk, Virginia, USA
  • G. Ciovati, F.E. Hannon, S. Wang
    JLab, Newport News, Virginia, USA
  
  Funding: Jefferson lab LDRD.
Elec­tron beam ir­ra­di­a­tion near 10 MeV is suit­able for waste­water treat­ment. The Up­graded In­jec­tor Test Fa­cil­ity (UITF) at Jef­fer­son Lab is a CW su­per­con­duct­ing lin­ear ac­cel­er­a­tor ca­pa­ble of pro­vid­ing an elec­tron beam of en­ergy up to 10 MeV and up to 100 µA cur­rent. This con­tri­bu­tion pre­sents the beam trans­port sim­u­la­tions for a beam­line to be used for the ir­ra­di­a­tion of waste­water sam­ples at the UITF. The sim­u­la­tions were done using the code Gen­eral Par­ti­cle Tracer with the goal of ob­tain­ing an 8 MeV elec­tron beam of ra­dius (3-σ) of ~2.4 cm. The achieved en­ergy spread is ~74.5 keV. The space charge ef­fects were in­ves­ti­gated when the bunch charge is var­ied to be up to 1000 times and the re­sults showed that they do not af­fect the beam qual­ity sig­nif­i­cantly. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB254  
About • paper received ※ 20 May 2021       paper accepted ※ 25 June 2021       issue date ※ 13 August 2021  
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WEPAB255 Simulation Studies on the Interactions of Electron Beam with Wastewater 3236
 
  • X. Li, H. Baumgart, G. Ciovati
    ODU, Norfolk, Virginia, USA
  • G. Ciovati, F.E. Hannon, S. Wang
    JLab, Newport News, Virginia, USA
  
  Funding: Jefferson Lab LDRD
The man­u­fac­tured chem­i­cal pol­lu­tants, like 1,4 diox­ane and PFAS (per- and polyfluro­ralkyl sub­stances), found in the un­der­ground water and/or drink­ing water are chal­leng­ing to be re­moved or biode­graded. En­er­getic elec­trons are ca­pa­ble of me­di­at­ing and re­mov­ing them. This paper uti­lizes FLUKA code to eval­u­ate the beam-waste­water in­ter­ac­tion ef­fects with dif­fer­ent en­ergy, space and di­ver­gence dis­tri­b­u­tions of the elec­tron beam. With 8 MeV av­er­age en­ergy, the elec­tron beam exits from a 0.0127 cm thick ti­ta­nium win­dow, trav­els through a 4.3 cm dis­tance air and a sec­ond 0.0127 cm thick stain­less water con­tainer win­dow with 2.43 cm ra­dius, and fi­nally is in­jected into the water area, where the vol­ume of water is around 75 cubic cm. The dis­tri­b­u­tion pa­ra­me­ters of the elec­tron beam are from the GPT (Gen­eral Par­ti­cle Tracer) sim­u­la­tions for UITF (Up­graded In­jec­tor Test Fa­cil­ity) in Jef­fer­son lab. By vary­ing the dis­tri­b­u­tions, sev­eral mea­sure­ments in­clud­ing the dose (or en­ergy de­po­si­tion) dis­tri­b­u­tion, elec­tron flu­ence, pho­ton flu­ence are scored and com­pared. Tak­ing the com­par­isons into con­sid­er­a­tion, this paper is aim­ing to find bet­ter elec­tron beams for the waste­water ir­ra­di­a­tion. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB255  
About • paper received ※ 20 May 2021       paper accepted ※ 25 June 2021       issue date ※ 14 August 2021  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)