In Situ Observations of Blistering of a Metal Irradiated with 2-MeV Protons
Alexander Badrutdinov,
Timophey Bykov,
Sergey Gromilov,
Yasuo Higashi,
Dmitrii Kasatov,
Iaroslav Kolesnikov,
Alexey Koshkarev,
Alexandr Makarov,
Takuya Miyazawa,
Ivan Shchudlo,
Evgeniia Sokolova,
Hirotaka Sugawara,
Sergey Taskaev
Affiliations
Alexander Badrutdinov
Advanced Medical Instrumentation Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
Timophey Bykov
Budker Institute of Nuclear Physics, 11 Lavrentiev ave., 630090 Novosibirsk, Russia
Sergey Gromilov
Faculty of Physics, Novosibirsk State University, 2 Pirogov str., 630090 Novosibirsk, Russia
Yasuo Higashi
Advanced Medical Instrumentation Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
Dmitrii Kasatov
Budker Institute of Nuclear Physics, 11 Lavrentiev ave., 630090 Novosibirsk, Russia
Iaroslav Kolesnikov
Budker Institute of Nuclear Physics, 11 Lavrentiev ave., 630090 Novosibirsk, Russia
Alexey Koshkarev
Budker Institute of Nuclear Physics, 11 Lavrentiev ave., 630090 Novosibirsk, Russia
Alexandr Makarov
Budker Institute of Nuclear Physics, 11 Lavrentiev ave., 630090 Novosibirsk, Russia
Takuya Miyazawa
Advanced Medical Instrumentation Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
Ivan Shchudlo
Budker Institute of Nuclear Physics, 11 Lavrentiev ave., 630090 Novosibirsk, Russia
Evgeniia Sokolova
Budker Institute of Nuclear Physics, 11 Lavrentiev ave., 630090 Novosibirsk, Russia
Hirotaka Sugawara
Advanced Medical Instrumentation Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
Sergey Taskaev
Budker Institute of Nuclear Physics, 11 Lavrentiev ave., 630090 Novosibirsk, Russia
A vacuum-insulated tandem accelerator was used to observe in situ blistering during 2-MeV proton irradiation of metallic samples to a fluence of up to 6.7 × 1020 cm−2. Samples consisting of copper of different purity, tantalum and tantalum-copper compounds were placed on the proton beam path and forced to cool. The surface state of the samples was observed using a charge-coupled device camera with a remote microscope. Thermistors, a pyrometer and an infrared camera were applied to measure the temperature of the samples during irradiation. After irradiation, the samples were analyzed on an X-ray diffractometer, laser and electron microscopes. The present study describes the experiment, presents the results obtained and notes their relevance and significance in the development of a lithium target for an accelerator-based neutron source, for use in boron neutron capture therapy of cancer.
