RICH 1 alignment line
HLT line to be used in RICH 1 alignment: we will later need to add a similar line for the RICH 2 alignment, but that can come in a separate MR to keep the diffs small.
Edited by Richard Lane
HLT line to be used in RICH 1 alignment: we will later need to add a similar line for the RICH 2 alignment, but that can come in a separate MR to keep the diffs small.