Abstract
A new method has been developed and used to measure the photo-deuteron to photo-proton ratio for copper irradiated with 45 MeV maximum energy bremsstrahlung. The photo-particles leaving the 50 μm thick target were deflected by a magnetic field in an evacuated chamber and were detected with nuclear emulsion plates. The particles were identified by using their ranges in emulsion and angles of entrance to retrace their paths back to the target. Of the 1614 tracks detected, 1134 were due to particles from the target. Of these 1114 were identified as protons and only 20 were found to be deuterons, giving a deuteron to proton ratio of 0.018±0.009. This result is not in agreement with the much larger values found for this ratio by other investigators using nuclear emulsion grain-counting techniques and a magnetic cloud chamber method.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.