Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5493297 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2017 | 7 Pages |
Abstract
A new scanning system named “Vertex picker” has been developed to rapid collect alpha decay events, which are calibration sources for the range-energy relation in nuclear emulsion. A computer-controlled optical microscope scans emulsion layers exhaustively, and a high-speed and high-resolution camera takes their micrographs. A dedicated image processing picks out vertex-like shapes. Practical operations of alpha decay search were demonstrated by emulsion sheets of the KEK-PS E373 experiment. Alpha decays of nearly 28 events were detected in eye-check work on a PC monitor per hour. This yield is nearly 20 times more effective than that by the conventional eye-scan method. The speed and quality is acceptable for the coming new experiment, J-PARC E07.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
J. Yoshida, S. Kinbara, A. Mishina, K. Nakazawa, M.K. Soe, A.M.M. Theint, K.T. Tint,