	<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
10	81	444429	12	84	530212	13	78	456485	12	27-JUN-07

Thr_Max in register units for M3R4-10

Thr_Max in register units for M3R4-10

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	74	82	75	75	78	84	77	81	74	90	77	90	81	90	81	83
FEB-2	78	85	88	92	79	82	81	88	88	84	85	82	80	79	92	83
FEB-3	73	78	71	87	76	81	80	70	75	80	77	82	78	81	80	71

Noise rate at Thr_Max [counts/sec] for M3R4-10

Noise rate at Thr_Max [counts/sec] for M3R4-10

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	426696	613745	482665	246334	483889	402931	562771	530480	351370	294179	363392	330620	467346	360676	704880	488883
FEB-2	734309	576200	534864	547208	508779	475672	662107	376444	564022	276278	493509	398481	466380	472001	747335	649802
FEB-3	375225	549835	406174	318867	390672	401086	346952	591543	482530	284450	494885	309047	412840	800061	645895	493704