	<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
34	78	472312	12	82	456210	12	80	497983	13	21-JUN-07

Thr_Max in register units for M3R4-34

Thr_Max in register units for M3R4-34

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	87	82	79	82	77	81	69	76	74	76	78	73	82	78	83	74
FEB-2	74	77	82	90	78	87	75	90	88	88	76	89	79	88	74	84
FEB-3	71	83	80	84	80	78	77	81	76	82	82	79	80	86	86	78

Noise rate at Thr_Max [counts/sec] for M3R4-34

Noise rate at Thr_Max [counts/sec] for M3R4-34

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	490530	593573	481953	443416	429122	364866	333757	564617	583610	360178	369846	382890	565066	426480	628020	539070
FEB-2	468937	492649	634798	453182	297157	381817	397156	382134	478949	372292	395677	288649	651014	374065	632890	597986
FEB-3	393035	630989	369317	534602	513830	520538	412367	556384	427262	424555	366482	421288	455407	581618	507223	852832