	<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
97	81	452689	13	83	472134	12	86	416344	12	18-MAR-07

Thr_Max in register units for M3R4-97

Thr_Max in register units for M3R4-97

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	84	82	72	91	82	81	78	83	81	82	76	82	76	90	84	79
FEB-2	82	88	83	81	83	89	90	79	81	77	78	87	90	81	85	77
FEB-3	85	94	86	84	87	92	79	82	81	83	84	93	83	85	86	90

Noise rate at Thr_Max [counts/sec] for M3R4-97

Noise rate at Thr_Max [counts/sec] for M3R4-97

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	447555	572025	460413	852061	268543	372412	346200	416039	295913	260909	534802	452450	481852	435625	423063	623160
FEB-2	357878	667032	289800	529935	351377	408638	587426	432682	602119	462540	456190	307541	511001	433795	501836	654349
FEB-3	429490	542848	414282	401015	335879	588948	332212	322811	365046	358481	358724	363713	319254	544678	515770	468345