	<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
8	74	472232	12	75	439885	12	70	313981	11	09-JUL-07

Thr_Max in register units for M3R4-8

Thr_Max in register units for M3R4-8

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	75	79	76	76	69	81	63	74	71	76	73	78	79	74	77	70
FEB-2	75	70	74	76	71	73	73	78	70	69	77	81	72	82	76	82
FEB-3	68	70	72	78	74	68	71	73	65	80	65	74	62	68	66	73

Noise rate at Thr_Max [counts/sec] for M3R4-8

Noise rate at Thr_Max [counts/sec] for M3R4-8

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	578455	539472	460496	295735	348337	360037	431871	343451	280864	643329	588543	400301	585297	446374	485823	767331
FEB-2	414983	455051	494100	402558	644769	319301	337813	347421	402610	298691	400592	356573	488252	453353	579143	642943
FEB-3	503261	360547	400088	299500	179116	324652	222518	240460	260823	267070	198173	406698	216217	339479	353628	451471