Characterization of the radiation environment at the UNLV accelerator facility during operation of the Varian M6 linac

Hodges, Matthew; Barzilov, Alexander; Chen, Yitung; Lowe, Daniel

doi:10.1016/j.radphyschem.2016.06.010

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…There is a sample table at the northern end of the accelerator bay where samples may be placed for experiment. The geometry model of the facility was created within the MCNPX input deck according to on-site measurements [2]. Figure 3 details the layout and dimensions of the accelerator facility and room structures.…”

Section: Accelerator Facilitymentioning

confidence: 99%

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Computational study of radiation doses at UNLV accelerator facility

et al. 2017

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Abstract.A Varian K15 electron linear accelerator (linac) has been considered for installation at University of Nevada, Las Vegas (UNLV). Before experiments can be performed, it is necessary to evaluate the photon and neutron spectra as generated by the linac, as well as the resulting dose rates within the accelerator facility. A computational study using MCNPX was performed to characterize the source terms for the bremsstrahlung converter. The 15 MeV electron beam available in the linac is above the photoneutron threshold energy for several materials in the linac assembly, and as a result, neutrons must be accounted for. The angular and energy distributions for bremsstrahlung flux generated by the interaction of the 15 MeV electron beam with the linac target were determined. This source term was used in conjunction with the K15 collimators to determine the dose rates within the facility.

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Section: Accelerator Facilitymentioning

confidence: 99%

“…Previous research projects at UNLV include the radiation characterization of the facility due to the M6 operation [2]. A Varian K15 was considered for installation at the accelerator facility and as such, a radiation characterization of the vault must be performed.…”

Section: Introductionmentioning

confidence: 99%

Computational study of radiation doses at UNLV accelerator facility

et al. 2017

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“…The resulting heavily moderated neutron source is presented in Figure 4.12, verifying that no additional moderator is needed at the activator cell point. Figure 4.17 was used to predict photoneutron production and moderation at the GaInSn to compare with experiments and optimize In-116 output [59]. Similar models were used for the M6 and the higher neutron output and higher energy K15 by swapping the target for a 9 and 15MeV compatible target in the model to scale up to predicted photoneutron yield.…”

Section: Monte Carlo Modeling Of Neutron Activation Sourcesmentioning

confidence: 99%