	<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
95	79	403280	12	76	500736	12	82	449388	12	16-MAR-07

Thr_Max in register units for M3R4-95

Thr_Max in register units for M3R4-95

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	81	81	84	74	81	79	87	71	84	78	85	79	78	80	79	68
FEB-2	78	74	73	74	77	77	75	73	78	75	74	76	75	78	77	81
FEB-3	80	88	79	82	81	81	77	83	83	82	80	86	83	82	79	85

Noise rate at Thr_Max [counts/sec] for M3R4-95

Noise rate at Thr_Max [counts/sec] for M3R4-95

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	381345	509992	438630	371093	331214	404158	270085	403014	385667	377356	434658	253536	311908	393890	551262	634679
FEB-2	494405	637858	412004	446415	340500	608839	488040	388702	581171	384737	681977	344973	443299	404617	574527	779705
FEB-3	364463	562591	427996	348877	305460	506606	269985	392788	304676	472529	288559	768361	453168	643210	450191	630740