	<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
43	80	467971	13	78	379029	11	82	491050	14	19-JUN-07

Thr_Max in register units for M3R4-43

Thr_Max in register units for M3R4-43

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	84	80	83	81	80	79	74	74	86	77	77	83	78	81	83	84
FEB-2	79	75	74	74	76	76	74	76	83	77	82	74	90	74	83	77
FEB-3	76	92	70	86	81	85	85	82	80	85	70	85	78	92	79	83

Noise rate at Thr_Max [counts/sec] for M3R4-43

Noise rate at Thr_Max [counts/sec] for M3R4-43

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	680882	493326	405664	473067	297890	472123	368390	478017	381611	441095	396596	497216	336399	499841	614124	651294
FEB-2	305925	422603	294642	386458	209099	312028	471184	229175	333812	481964	360996	335893	457349	396480	474704	592159
FEB-3	542090	585480	399855	415858	405243	601293	432196	487280	427580	441604	452558	408747	476383	473274	591113	716250