	<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
39	80	472181	13	80	457646	12	83	549706	13	21-JUN-07

Thr_Max in register units for M3R4-39

Thr_Max in register units for M3R4-39

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	76	80	82	83	78	83	80	78	78	81	75	84	84	74	80	88
FEB-2	80	79	78	80	91	78	81	77	86	80	89	76	78	82	72	74
FEB-3	90	82	83	92	84	77	78	81	77	85	88	78	80	86	81	82

Noise rate at Thr_Max [counts/sec] for M3R4-39

Noise rate at Thr_Max [counts/sec] for M3R4-39

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	490427	526393	456176	473974	347739	403706	466501	322151	429086	422637	478065	419762	427028	562635	523691	804927
FEB-2	491323	588235	348783	469960	509955	538207	367381	409439	304459	432819	362421	392965	457605	390235	641877	616664
FEB-3	505080	664842	457759	543709	473570	367077	658094	382236	569870	631403	562582	372050	463532	715003	718873	709614