2.2 GEM Monitors
The current status of the GEM monitors is as follows:
| Monitor | Distance from Moderator (m) |
Spectra* | Monitor Type |
| M1 Pre-choppers | 6.22 | S1,S2 | Scintillators viewing V foil |
| M2 Inter-choppers | 10.147 | S3 | Scintillator in beam just after choppers |
| Count rate check | not known | S4 | He tube in blockhouse |
| M3 Incident | 15.535 | S5 - S8 | Four He tubes viewing V foil |
| M4 Transmission | 20.145 | S9-S12 | Four He tubes viewing V foil |
*assuming a standard spectra table is used
Click here for a schematic of the GEM beamline.
Last updated on 30 Aug 2002 by Alex Hannon (a.c.hannon@rl.ac.uk)