	<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
59	73	482463	12	78	502432	12	79	449545	12	10-JUL-07

Thr_Max in register units for M3R4-59

Thr_Max in register units for M3R4-59

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	72	75	71	71	66	67	74	75	73	73	80	75	73	73	77	75
FEB-2	80	86	71	83	73	72	77	81	74	82	77	90	69	85	67	76
FEB-3	80	83	82	75	74	84	82	74	76	81	80	81	76	81	88	72

Noise rate at Thr_Max [counts/sec] for M3R4-59

Noise rate at Thr_Max [counts/sec] for M3R4-59

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	405937	584571	531698	511925	319985	452780	375670	561061	418901	333388	391260	328898	477283	748808	559352	717896
FEB-2	698703	681177	433551	600552	400579	649667	295984	590070	221408	365538	328354	398783	394478	504054	527787	948231
FEB-3	405828	530547	472829	412995	346714	357646	383387	337715	326272	362573	286519	376471	620270	494186	683779	794991