	<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
19	80	441722	12	76	537385	13	79	534610	13	26-JUN-07

Thr_Max in register units for M3R4-19

Thr_Max in register units for M3R4-19

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	80	76	88	73	88	72	85	81	82	73	86	74	85	75	85
FEB-2	72	80	71	79	76	81	74	78	76	85	73	79	77	74	75	73
FEB-3	76	86	76	86	80	78	68	81	79	86	68	83	76	84	78	74

Noise rate at Thr_Max [counts/sec] for M3R4-19

Noise rate at Thr_Max [counts/sec] for M3R4-19

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	404161	433348	631649	344279	543588	276000	326026	368304	335645	330056	334576	318317	512287	482539	433647	993128
FEB-2	467331	636987	761618	508828	769505	531081	380220	440704	423480	491607	536392	428769	475803	480132	581962	683734
FEB-3	426398	480949	900976	427129	429643	411711	792166	323553	514149	417472	501015	417686	567612	530211	695779	717313