	<i>Thresholds Scan<br />185 M3R4 chambers passed the tests</i></font> Thresholds Scan 185 M3R4 chambers passed the tests

Tables below present:
- Thr_Max(r.u.), Thresholds in register units at Maximum of noise rate;
- N_Max, Noise rate at Thr_Max in counts/sec;
- D_100 = Thr_100(r.u.) - Thr_Max(r.u.) where Thr_100(r.u.) is the threshold in register units at noise rate = 100/s.
The following expression relates the real threshold (measured from the base-line of physical signals) with the thresholds determined by the register units:
Thr(fC)*S(r.u./fC) = Thr(r.u.) - Thr_Max(r.u.)+ OFFSet(r.u.).
Here, OFFSet=17 register units;
S=3.40 r.u./fC is the charge sensitivity corresponding to S=8mV/fC taken for M3R4 chambers;
(Note, that 1 register unit = 2.35 mV)

	FEB-1. Mean values.			FEB-2. Mean values.			FEB-3. Mean values.
Chamber	Thr_Max [r.u.]	N_Max [counts/s]	D_100 [r.u.]	Thr_Max [r.u.]	N_Max [counts/s]	D_100 [r.u.]	Thr_Max [r.u.]	N_Max [counts/s]	D_100 [r.u.]	Test Date	Plots	Comments
46	82	599846	15	77	442695	12	81	526412	13	07-FEB-07

Thr_Max in register units for M3R4-46

Thr_Max in register units for M3R4-46

FEB Channels	Ch_1	Ch_2	Ch_3	Ch_4	Ch_5	Ch_6	Ch_7	Ch_8	Ch_9	Ch_10	Ch_11	Ch_12	Ch_13	Ch_14	Ch_15	Ch_16
FEB-1	82	88	68	85	72	86	73	85	87	84	81	82	77	83	86	86
FEB-2	73	85	77	81	68	85	78	79	75	78	69	78	78	72	79	72
FEB-3	85	76	82	81	89	79	77	87	83	82	77	78	86	79	77	73

Noise rate at Thr_Max [counts/sec] for M3R4-46

Noise rate at Thr_Max [counts/sec] for M3R4-46

FEB Channels	Ch_1	Ch_2	Ch_3	Ch_4	Ch_5	Ch_6	Ch_7	Ch_8	Ch_9	Ch_10	Ch_11	Ch_12	Ch_13	Ch_14	Ch_15	Ch_16
FEB-1	680813	683325	521216	821248	365678	407804	517918	1107758	627578	464607	457111	446025	435948	626081	804159	630268
FEB-2	525018	563437	427173	380630	351720	665903	285952	428885	172412	387776	357217	401649	477281	572138	605820	480103
FEB-3	448108	545050	429049	516291	356058	465486	336136	376499	440653	421755	739432	584940	811429	655628	661910	634167