	<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
101	77	384047	12	74	367563	11	80	490950	13	18-JUN-07

Thr_Max in register units for M3R4-101

Thr_Max in register units for M3R4-101

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	70	83	79	82	77	73	76	79	71	77	79	79	76	81	77	78
FEB-2	80	71	75	73	81	67	69	66	76	66	79	77	87	73	77	73
FEB-3	79	76	78	80	85	77	82	81	71	77	83	80	82	81	90	81

Noise rate at Thr_Max [counts/sec] for M3R4-101

Noise rate at Thr_Max [counts/sec] for M3R4-101

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	441101	400213	445994	448643	309804	361158	216108	222522	304213	359434	260454	570412	331139	376230	557886	539434
FEB-2	317489	433883	453947	252127	332237	375899	278751	242784	355699	327218	443654	226257	290922	591104	423681	535357
FEB-3	494799	656830	680501	397053	317988	353961	537758	433039	399731	288899	487064	336359	395606	677792	654729	743090