	<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
6	79	416948	12	72	500228	13	75	430492	12	09-JUL-07

Thr_Max in register units for M3R4-6

Thr_Max in register units for M3R4-6

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	80	81	83	91	81	82	74	76	81	82	79	67	79	73	74
FEB-2	74	66	74	70	72	65	74	73	77	73	71	78	71	66	70	72
FEB-3	79	75	74	73	72	66	75	71	72	83	76	74	75	70	80	80

Noise rate at Thr_Max [counts/sec] for M3R4-6

Noise rate at Thr_Max [counts/sec] for M3R4-6

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	469106	589339	305598	399078	358730	368370	387036	356750	216758	436125	317791	617478	276100	435977	511255	625684
FEB-2	616313	469609	617640	409531	572329	390509	536292	354929	446221	591910	424696	613764	409855	381363	679889	488803
FEB-3	341028	503116	472492	555222	352726	372434	270419	480104	406449	276497	406637	260818	448246	338256	564941	838479