	<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
22	74	380328	12	75	349807	11	74	503981	12	26-JUN-07

Thr_Max in register units for M3R4-22

Thr_Max in register units for M3R4-22

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	75	75	78	76	81	74	78	73	73	68	71	71	71	65	75
FEB-2	72	79	72	80	77	69	80	68	74	77	79	74	67	76	80	83
FEB-3	82	75	83	64	75	73	77	74	71	75	70	65	73	72	74	73

Noise rate at Thr_Max [counts/sec] for M3R4-22

Noise rate at Thr_Max [counts/sec] for M3R4-22

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	858380	519313	341499	306762	287936	369131	248384	274903	360279	406625	308670	290973	341335	245229	371103	554718
FEB-2	347817	522645	280827	354661	290481	329398	404340	284104	275181	402843	207157	290148	349660	272173	478736	506735
FEB-3	702810	647131	453328	429498	458865	401168	538727	373778	499926	535964	459132	323786	494958	597343	643682	503593