	<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
37	73	383838	11	78	391164	12	84	464528	12	22-JUN-07

Thr_Max in register units for M3R4-37

Thr_Max in register units for M3R4-37

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	72	74	68	80	71	75	74	79	71	80	64	78	66	76	75	72
FEB-2	77	72	83	78	76	79	82	77	85	74	84	79	82	73	77	71
FEB-3	86	82	87	84	90	83	80	86	91	82	80	86	90	79	85	76

Noise rate at Thr_Max [counts/sec] for M3R4-37

Noise rate at Thr_Max [counts/sec] for M3R4-37

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	436313	421060	442586	410001	223569	307029	410811	260535	569375	352284	296715	293046	514273	359116	503151	341550
FEB-2	341101	458141	542629	311314	284042	408023	285381	430266	355485	237449	367242	366056	356583	431326	504175	579417
FEB-3	430918	704122	409499	439695	612156	313338	311316	376006	436858	298359	327135	272255	943360	651438	520821	385169