Block of detection BDZB-100 is intended for measuring the level of pollution of surfaces polluted by beta- active substances.
Output signal is a sequence of normalized, statistically distributed pulses, contains measurable data about the density value of the flow of beta radiation where the block is located.
| Area of the detector sensitive surface, cm2 |
28,0 |
| Sensitivity* |
(0,125±0,3) imp s-1 on 1 min-1∙sm-2 |
| Energy range of the registered beta-emission, MeV |
From 0,3 to3,0 |
| Registration efficiency (2π)*, % |
25,0 |
| Type of the detector |
Scintillation plastic Ø68h2mm |
| Upper limit of the measured density of beta-emission flow*, min-1·sm-2 |
1,0·105; |
| Sensitivity to background gamma radiation |
No more than 19,2 imp s-1 on 1 mkZv/чh |
| Unevenness of the sensitivity of the detector surface comparatively to the sensitivity in the center of the detector, % |
No more than 35 |
| Overall dimensions, mm |
Ø90 х 220 |
| Mass, kg |
1,0 |
| Connecting cable length, m |
20,0 (may be increased up to 200 m) |
| Note* – emission of 90Sr+90Y radionuclides | |
ELECTRICAL CHARACTERISTICS
Power supply – DC voltage 12,6 v. The consumed current is not more than 30 mA.
Designation of the joint contacts (plug RS -10) of the block.
 |
Contact |
Designation of the signal |
Commentaries |
|
1 |
+Uп | DC voltage +(12,6 ± 0,5) v | |
|
4 |
Output. | Output
BDZB-100: negative square-wave pulses with an amplitude of at least 4.5 V, duration (1,5 ± 0,5) s; BDZB-100-01: positive square-wave pulses with an amplitude of at least 4.5 V, duration (1,5 ± 0,5) s; BDZB-100-03: positive square-wave pulses with an amplitude of no less than 11,5 V, duration of (1,5 ± 0,5) s; |
|
| 9 | ┴ | Screen is connected to contact 10 | |
| 10 | General | General, connected to contact 9 |
