Measurement of the Neutron Field Characteristics Inside and Outside the Vault of a 70 MeV Cyclotron
| Autor: | Edna M. Sacay, Maxim Kiselev, Roy J. Peterson, S. Witharana, J. Dubeau |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Field (physics) Proton 010308 nuclear & particles physics Cyclotron 01 natural sciences Neutron temperature 030218 nuclear medicine & medical imaging law.invention Nuclear physics 03 medical and health sciences 0302 clinical medicine Neutron flux law 0103 physical sciences Nested neutron spectrometer Neutron Beam (structure) |
| Zdroj: | 2017 IEEE Radiation Effects Data Workshop (REDW). |
| Popis: | Neutron fields are created inside and outside the vault as byproducts of radioisotope production of the 70 MeV cyclotron at Zevacor Molecular Inc. Neutron energy distribution measurements were obtained for a 10 μΑ accelerator proton beam incident on a Rb/Ga target using the Nested Neutron Spectrometer. The neutron fluence rate at a 30 cm diameter conduit outside of the vault reached 3.95×104 cm−2 s−1 and was measured to be 7.68×107 cm−2 s−1 inside the vault at a distance of 1 m from the target. Neutron output is expected to be approximately 20 times greater during routine operational conditions (200 μΑ). Inside the vault, the spectrum showed features similar to theoretical models and may provide a useful environment to test space-bound electronics. |
| Databáze: | OpenAIRE |
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