	<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
7	85	555604	14	76	538598	13	80	462754	12	04-JUL-07

Thr_Max in register units for M3R4-7

Thr_Max in register units for M3R4-7

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	88	84	83	82	87	86	85	81	92	91	86	86	89	79	82	85
FEB-2	72	76	76	72	79	76	73	79	71	75	84	76	81	73	74	81
FEB-3	84	84	71	85	74	80	77	86	73	90	72	87	68	86	71	87

Noise rate at Thr_Max [counts/sec] for M3R4-7

Noise rate at Thr_Max [counts/sec] for M3R4-7

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	579862	646981	468285	572166	449643	508707	589332	504915	472593	406080	511509	549732	548115	499975	779997	801779
FEB-2	548665	684829	531437	497048	485186	467073	431351	534015	419807	391536	626589	375247	496356	645701	839038	643697
FEB-3	746289	499297	484062	431075	347242	478922	368475	398421	436185	348461	338137	358865	414116	515368	636025	603116