	<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
173	83	447302	13	74	380775	11	80	451089	13	08-JUN-07

Thr_Max in register units for M3R4-173

Thr_Max in register units for M3R4-173

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	94	86	89	86	86	75	81	87	80	79	84	79	87	79	81	78
FEB-2	73	87	65	77	77	77	75	73	73	74	66	74	73	74	76	75
FEB-3	85	78	77	71	83	80	88	79	87	73	93	74	89	68	81	78

Noise rate at Thr_Max [counts/sec] for M3R4-173

Noise rate at Thr_Max [counts/sec] for M3R4-173

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	610292	459040	462186	356787	389357	518631	307253	382347	390269	533449	459835	307178	385862	427574	541743	625036
FEB-2	499543	451419	305506	579045	298991	284496	283489	240556	318338	248924	292657	379360	422937	496237	510043	480854
FEB-3	509214	544529	415772	490235	379623	503161	319574	366714	407179	444861	397916	338699	388044	405712	562747	743443