Run Source Mask
===============
These are bits defined in the source_mask word of the RHDR bank.
Bit number Source type bit to set
0 ROTATING 0x000001
1 LASER 0x000002
2 SONO 0x000004
3 N16 0x000008
4 N17 0x000010
5 NAI 0x000020
6 LI8 0x000040
7 PT 0x000080
8 CF_HI 0x000100
9 CF_LO 0x000200
10 U 0x000400
11 TH 0x000800
12 P_L17 0x001000
13 WATER SAMPLER 0x002000
14 PROP COUNTER 0x004000
15 SINGLE NCD 0x008000
16 SELF CALIB 0x010000
17 SPARE_1 (don't use) 0x020000
18 ANY_LOW_CHERENKOV 0x040000
19 RADON 0x080000
20 SPARE_4 0x100000
21 SPARE_5 0x200000
22 AMBE 0x400000