Publications [#356854] of Seog Oh

Papers Published

1. Bono, JS; Caron, JF; Oh, SH; Wang, C, The stress relaxation (creep) rate of Mu2e straw tubes, Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, vol. 902 (September, 2018), pp. 95-102 [doi]
   (last updated on 2026/01/19)

   Abstract:
   We report on the material relaxation properties of the Mu2e straw tubes measured over a period of about 5 years under two conditions. One is a fixed tension condition: two straw tubes are under a constant tension, and the lengthening of the tubes is measured as a function of time. The other is a fixed length condition: the length of four straw tubes with different initial tensions is fixed, and the tension in the tubes is measured. For the latter case, a scaling behavior appears when the ratio of the tension to the initial tension of the four straws is plotted as a function of time. In both cases, we find that the creep rates can be well parameterized with a logarithmic function of time elapsed. This implies that, for example, the amount of creep from day 20 to 200 is the same as between day 200 and 2000.