	<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
35	80	619503	14	76	449059	12	78	422893	12	21-JUN-07

Thr_Max in register units for M3R4-35

Thr_Max in register units for M3R4-35

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	75	83	76	81	77	87	78	83	82	83	75	75	80	76	90	81
FEB-2	80	70	73	73	79	76	82	70	82	74	72	75	76	78	78	72
FEB-3	78	74	77	79	75	80	72	78	80	80	81	85	72	78	79	78

Noise rate at Thr_Max [counts/sec] for M3R4-35

Noise rate at Thr_Max [counts/sec] for M3R4-35

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	535754	638521	586850	541841	555634	642904	497792	806810	564432	519744	671451	479810	774303	515558	692278	888361
FEB-2	478743	462136	581469	398518	337767	500375	519990	310426	392550	287222	316723	332236	408449	452102	611551	794679
FEB-3	446418	459163	434356	370628	308450	552071	252569	388132	345689	529982	400101	288904	345618	547634	576013	520561