Publications
Publication Information
| Title | Electron beam irradiation of 1,4 dioxane |
| Authors | Xi Li, Shaoheng Wang, Helmut Baumgart, Gianluigi Ciovati, Fay Hannon, Hannes Vennekate, Bernard Poelker, Michael McCaughan, Robert Pearce, Charles Bott |
| JLAB number | JLAB-ACC-21-3543 |
| LANL number | (None) |
| Other number | DOE/OR/23177-6176 |
| Document Type(s) | (Meeting) |
| Category: | Beam Dynamics |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | Yes |
| LDRD Numbers: | 2021-LDRD-11 |
| Funding Source: | Other |
| Other Funding: | LDRD Jlab |
|
Meeting Invited Talk compiled for 14th International Topical Meeting on Nuclear Applications of Accelerators (AccApp'21) | |
| Publication Abstract: | Electron beam irradiation produces both, reducing and oxidizing species which facilitate the reduction of contaminants found in water and wastewater. To investigate the impact of electron beam on 1,4-dioxane, a widely used solvent which has been declared as a probable human carcinogen by the U.S. Environmental Protection Agency, a beamline was designed and commissioned at the Upgraded Injector Test Facility at Jefferson Lab. Here, wastewater samples can be irradiated with a beam energy up to 10 MeV and a beam current of up to 100 nA. Beam acceleration is achieved by two superconducting radio-frequency cavities cooled by liquid helium in a cryomodule. A beam spot with a diameter of ~5 cm was produced at the target location using a pair of raster coils. Electron beam irradiation studies were performed using 1,4-dioxane in two different matrices, de-ionized water and secondary effluent wastewater, and for two concentrations, 10 microg/L and 100 microg/L. The concentration of 1,4-dioxane after irradiation was measured as a function of dose. |
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| Group: | SRF Research & Dev |
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