	<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
93	81	539333	14	76	430582	12	79	480610	13	13-MAR-07

Thr_Max in register units for M3R4-93

Thr_Max in register units for M3R4-93

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	79	83	79	84	82	87	80	84	79	78	81	80	80	79	83	79
FEB-2	85	77	78	71	75	66	71	75	79	68	76	77	88	76	80	73
FEB-3	82	81	84	81	79	84	84	73	82	74	81	69	73	77	84	77

Noise rate at Thr_Max [counts/sec] for M3R4-93

Noise rate at Thr_Max [counts/sec] for M3R4-93

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	505760	669272	532006	567770	323152	615246	542641	427019	521852	442802	473525	461553	370426	557704	564403	1054189
FEB-2	330675	587325	376430	472412	410299	495075	249794	392956	326599	363471	349161	460603	326698	721811	403387	622617
FEB-3	424038	637821	388829	526912	491542	472435	412558	423934	379538	554783	367272	471093	382277	589103	513755	653862