	<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
71	73	353935	12	71	488987	11	79	551403	14	08-MAR-07

Thr_Max in register units for M3R4-71

Thr_Max in register units for M3R4-71

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	71	82	70	71	63	77	78	73	69	73	69	74	74	79	67	74
FEB-2	65	61	79	71	70	66	76	70	61	69	75	72	76	72	75	74
FEB-3	80	79	76	83	74	81	75	80	77	76	78	81	84	76	81	77

Noise rate at Thr_Max [counts/sec] for M3R4-71

Noise rate at Thr_Max [counts/sec] for M3R4-71

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	406116	448635	347030	284668	252122	359084	313558	245280	324646	206099	300854	415199	285712	337202	448412	688336
FEB-2	451808	639768	475536	554976	318293	561332	359196	416991	275579	430466	314501	580053	654611	620808	600548	569330
FEB-3	534262	655083	469384	797333	626522	441022	443188	511573	502668	398363	420104	470349	597252	565405	696378	693565