	<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
58	82	502072	13	80	508110	12	81	474014	12	18-JUN-07

Thr_Max in register units for M3R4-58

Thr_Max in register units for M3R4-58

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	76	85	86	82	82	82	85	80	82	87	86	76	87	78	78	79
FEB-2	69	85	75	78	81	80	87	79	91	79	85	75	85	73	73	80
FEB-3	81	87	86	85	85	92	75	78	77	84	76	85	78	80	78	74

Noise rate at Thr_Max [counts/sec] for M3R4-58

Noise rate at Thr_Max [counts/sec] for M3R4-58

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	823564	457288	588890	625277	339319	490130	325692	492061	586831	439099	369997	417276	381968	568177	611877	515702
FEB-2	409332	431163	579409	545633	399315	781475	361823	375805	292245	673394	485022	365906	615275	478038	601244	734688
FEB-3	467484	486154	405728	393912	418012	489468	288919	310745	549911	321951	694370	648100	445522	496553	495826	671576