	<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
113	76	527710	14	82	398367	12	82	450948	12	29-JAN-07		Sens=7.5mV/fc Th=15fc

Thr_Max in register units for M3R4-113

Thr_Max in register units for M3R4-113

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	80	79	75	75	79	79	77	76	70	84	68	80	73	80	74	72
FEB-2	88	85	80	84	88	77	86	73	84	71	90	77	85	85	76	80
FEB-3	81	81	82	88	83	87	79	79	72	87	81	84	79	87	76	83

Noise rate at Thr_Max [counts/sec] for M3R4-113

Noise rate at Thr_Max [counts/sec] for M3R4-113

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	483827	586660	428796	401737	397462	512596	403043	429893	539728	620092	607052	575279	618987	645772	665380	527052
FEB-2	507594	569558	314926	302901	319930	328429	276673	339049	475373	259465	393814	355234	390164	376739	594600	569422
FEB-3	355338	545503	422160	501941	225984	485893	228941	838574	321372	656233	324210	536199	332645	426885	400732	612562