	<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
70	81	517577	13	77	519359	13	83	505542	13	08-MAR-07

Thr_Max in register units for M3R4-70

Thr_Max in register units for M3R4-70

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	78	82	76	82	78	87	73	84	75	76	78	86	83	87	91	83
FEB-2	81	75	80	75	80	71	77	76	77	75	83	78	80	75	85	67
FEB-3	88	80	85	78	83	82	91	89	83	86	86	76	74	92	76	80

Noise rate at Thr_Max [counts/sec] for M3R4-70

Noise rate at Thr_Max [counts/sec] for M3R4-70

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	410442	755177	467062	570396	352235	615043	578342	371149	304963	801705	414811	455127	367922	554302	587868	674692
FEB-2	422498	728101	616429	452715	417500	475167	429690	387843	422696	455795	545591	600850	569904	568258	538302	678402
FEB-3	427124	593259	462183	489774	523177	411681	327962	682542	471855	333337	444049	464365	444054	688985	608663	715654