	<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
73	82	457011	12	83	512488	13	78	592004	14	11-MAR-07

Thr_Max in register units for M3R4-73

Thr_Max in register units for M3R4-73

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	84	76	82	84	77	86	77	87	83	86	75	84	81	91	81	82
FEB-2	81	77	76	81	84	92	76	93	77	87	83	81	85	86	75	88
FEB-3	72	82	84	77	71	75	72	76	76	84	77	84	82	76	80	80

Noise rate at Thr_Max [counts/sec] for M3R4-73

Noise rate at Thr_Max [counts/sec] for M3R4-73

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	480702	542719	491294	449651	387426	499119	362665	324642	435540	366776	511707	373781	540815	462374	486798	596162
FEB-2	629792	610232	855392	508087	290442	561470	462803	543539	385298	318810	373923	465527	560561	434248	536145	663533
FEB-3	776215	788292	412757	444580	639801	431510	294740	739958	694593	459470	541116	419087	596141	624002	771626	838181