Figure 5
The peak height (hhkl, white), and sample-dependent (bsample, grey) and constant background (b0, black) count levels per second (left-hand axis), for a 40 mm3 Al gauge volume at zero depth for many neutron instruments worldwide, based on data collected for an Al ring and plug as part of a round robin. Also shown as narrow columns are the count times to acquire to 10−4 strain accuracy at zero depth (right-hand axis). The instrument identifier codes correspond to those in the VAMAS TWA20 report (Webster, 2000). |