	<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
82	76	397639	12	81	404681	11	79	438031	12	13-MAR-07

Thr_Max in register units for M3R4-82

Thr_Max in register units for M3R4-82

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	74	75	71	78	75	83	68	74	76	78	75	77	75	76	80
FEB-2	79	81	80	84	77	84	86	78	89	75	83	76	84	76	81	81
FEB-3	79	86	70	80	74	76	80	84	77	75	75	80	84	77	78	81

Noise rate at Thr_Max [counts/sec] for M3R4-82

Noise rate at Thr_Max [counts/sec] for M3R4-82

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	372849	516809	379114	482722	509889	375443	387154	324268	305265	324246	295264	341603	336860	435887	431667	543185
FEB-2	458575	411833	325027	334163	344821	407885	314789	410592	334207	343186	556593	297671	381186	344297	474924	735150
FEB-3	616599	468471	432778	365094	304313	252461	301151	347546	535963	255317	497832	292608	551596	361424	586577	838771