NaI(Tl) 63*63mm Scintillation gamma spectrometer AtomSpectra 1 Pro.100+kcps 6.5%

Description

63*63mm NaI(Tl) Scintillation spectrometer for gamma-spectrometry.
Complete gamma spectrometer. Just connect to your computer USB port and you are ready to go!
Construction overview
Scintillation detector assembly consists of 63*63 mm (2.5”*2.5”) NaI(Tl) monocrystal, Hamamatsu photomultiplier tube, low-noise regulated adjustable power supply, low-noise preamplifier, ADC and multichannel analyzer with USB interface.
Dimensions:
height – 250 mm,
diameter – 80 mm,
weight - 1550 grams max.
63*63 mm NaI(Tl) detector is effective for gamma-spectrometry in more than 30 Kev – 3 Mev energy range. Typical energy resolution is 7% for 662 Kev peak of Cs137 source. Light output of NaI(Tl) crystals depends on temperature, so after temperature change calibration is recommended. It is not recommended to change temperature of the detector faster than 1°C\minute.
Scintillation crystal is optically matched with photomultiplier tube 3" by Hamamatsu. Voltage divider for photomultiplier is made as separate PCB unit. Anode of photomultiplier is separated from resistor divider for noise reduction. Photomultiplier is magnetically shielded.
Photomultiplier power supply circuit is PWM type, output voltage is stabilized. Optimum voltage is adjusted, no user-adjustable parts inside. All power supply circuitry is hermetically sealed with silicone compound and shielded for emission reduction. Output high voltage is additionally filtered. Power consumption from USB port depends on actual voltage and less than 200 mA at maximum voltage.
Low-noise preamplifier performs signal conditioning before ADC. Total noise equivalent of photomultiplier and preamplifier is less than 3 Kev.
ADC runs at  14 MHz sampling rate.
Sensitivity and load
63*63mm NaI(Tl) scintillation detector have very high sensitivity: around 120 000 pulses per minute to microsievert per hour. It is normal that in typical gamma radiation background (0.1 uSv/h) you will see 150-250 counts per second, or 9000 – 15000 counts per minute. High speed ADC can process  more than 100 000 counts per second load. Number of MCA channels - 8192. Overall system drift, measured with Cs137 source, is no more than 0.02%/1000 cps, resolution derating (Cs137) - no more than 0.3% per 100 000 cps.
Software
Works with any PC under Windows (XP or higher). Needs FT232 chip driver (depends on your system
, https://www.ftdichip.com/Drivers/VCP.htm
)
and specially modified Becquerel Monitor software (
https://drive.google.com/file/d/1UKDY8coH4NCucq1EWk70G4Kau-g5Xe9Y/view?usp=sharing )
, installation takes 1-3 minutes.
Works with Android (6.0 or higher) using USB on the go, please see "Atomspectra" app in Google Paly.
If you have any questions - feel free to ask me. Actual detector may slightly differ from photo.
Feedback
From Buyer
Date/time
All is OK!
o**e ( 456
)
2017-10-13
13:40:16
Good customer service, prompt, excellent to resolve any shipping issue.
a*************0 ( 27
)
2017-10-11
23:17:31
item as descirbed - works very well - nice contact - quick delivery
p*********m ( 335
)
2017-10-11
20:47:30
Excellent. Maxim, you make the best electronics. Cutting edge + Quality as usual
a****h ( 45
)
2017-09-25
20:19:17
5 stars seller ! Very good product !!! Thanks !
s*******t ( 339
)
2017-09-22
12:33:46
Works great, excellent support and enthusiastic seller/author. Recommended!
z*********t ( 26
)
2017-09-04
09:43:33
No problem.
p******i ( 23
)
2017-09-02
12:23:38
Good customer service, prompt, excellent to resolve any shipping issue.
a*************0 ( 27
)
2017-08-23
13:36:56
.·:*¨¨*:·.A.·:*¨¨*:·.FIVE.·:*¨¨*:·.STAR.·:*¨¨*:·.EBAYER.·:*¨¨*:·.
m********8 ( 1220
)
2017-08-03
09:28:25
A+++ Easy transaction!
d***c ( 237
)
2017-07-13
20:04:13
This device is awesome. Well engineered and supported. I'm very happy.
b***w ( 215
)
2017-06-30
15:54:08
Very very fast delivery. In excellent condition. Thanks. English manual needed.
z*****g ( 46
)
2017-06-23
15:15:01
Excellent in all respects.
b****9 ( 327
)
2017-06-21
22:59:35
Thank you! All good, dosimeter works very well and accurate.
a******0 ( 353
)
2017-06-03
19:11:35
good thing for home use
r*****4 ( 10
)
2017-06-01
07:44:24
Service as good as last year ! friendly seller, H-Q russian geiger tubes! 5STARS
m**********1 ( 295
)
2017-05-30
12:07:13
A sensitive bluetooth detector & made very professionally.
a****h ( 45
)
2017-05-27
15:33:37
Item arrived in good condition,Fast Shipping,Thank you.
g******u ( 784
)
2017-05-27
04:18:31
Awesome product and fast shipping A+++
l*************9 ( 36
)
2017-05-25
01:12:20
eccellente..ultrarapido ottimo oggetto tutto perfetto +++++++++
g*****4 ( 112
)
2017-05-22
17:14:18