	<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
13	79	464208	12	79	555179	14	71	341761	11	03-JUL-07

Thr_Max in register units for M3R4-13

Thr_Max in register units for M3R4-13

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	71	79	84	83	72	81	74	81	80	86	77	78	79	87	81	78
FEB-2	83	72	79	71	84	75	76	76	85	78	80	81	83	80	85	77
FEB-3	74	70	76	63	78	70	80	70	64	72	69	78	65	74	65	66

Noise rate at Thr_Max [counts/sec] for M3R4-13

Noise rate at Thr_Max [counts/sec] for M3R4-13

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	381080	463412	541487	455139	537006	354535	534987	311145	362097	227386	421775	592657	655528	365523	614914	608652
FEB-2	598776	638426	587902	461826	453026	454236	542339	462986	776816	399535	490568	405001	752785	638100	586179	634362
FEB-3	324088	437067	492472	353271	199228	253337	514867	325087	273813	283209	325538	292499	325329	249669	354645	464056