	<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
94	73	440019	13	79	473117	12	83	488396	12	13-MAR-07

Thr_Max in register units for M3R4-94

Thr_Max in register units for M3R4-94

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	79	80	71	73	74	76	72	74	65	74	74	81	73	67	75	67
FEB-2	78	75	77	84	75	88	76	82	78	83	72	76	76	79	78	80
FEB-3	82	80	84	77	90	83	79	83	87	79	83	77	84	111	74	75

Noise rate at Thr_Max [counts/sec] for M3R4-94

Noise rate at Thr_Max [counts/sec] for M3R4-94

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	491872	509556	457015	443171	316449	370541	505379	386868	425027	581670	408842	396029	300369	464702	473996	508817
FEB-2	583507	713718	454852	478418	400189	569854	387570	385145	448781	377747	366863	428727	485605	426481	471976	590440
FEB-3	434637	653163	510161	525868	273509	566101	353199	395698	297226	475303	346760	454148	500615	542248	562775	922932