1Wide Energy OmnibusGCDX seriesHPGe

• straight AGCDXThe series of high-purity germanium detectors adopt ultra-thin and reliable contact electrodes;
• The energy response range of a wide energy detector is3keV-10MeV；
• The unique front-end amplifier and high-voltage circuit design enable the detector to achieve better energy resolution in low-energy regions;
• The detector crystal has higher purity and requires lower high voltage than traditional high-purity germanium detectors;
• Fengkang has better performance than others;
• Ultra low background packaging, (suffix added)-T represents ultra-low background copper packaging- A represents ultra-low background aluminum packaging- C represents overall carbon fiber encapsulation)

• Optional liquid nitrogen condensation refrigeration device (electrically redundant refrigeration)

Wide energystraight ATechnical specifications of GCDX series high-purity germanium detector

IIWide energy eliteGCDS seriesHPGe

• straight AThe GCDS series high-purity germanium detector adopts ultra-thin and reliable contact electrodes;
• The energy response range of a wide energy detector is3keV-10MeV；
• The unique front-end amplifier and high-voltage circuit design enable the detector to achieve better energy resolution in low-energy regions；
• The detector crystal has higher purity and requires lower high voltage than traditional high-purity germanium detectors;
• Fengkang has better performance than others;
• Ultra low background packaging, (suffix added)-T represents ultra-low background copper packaging- A represents ultra-low background aluminum packaging- C represents overall carbon fiber encapsulation)
• Optional liquid nitrogen condensation refrigeration device (electrically redundant refrigeration)

Wide energyeliteGCDS series high-purity germanium detector

Model number	Relative efficiency (%)	Capability resolution (KeV)			Feng/Kangbi	Peak shape (full width at half maximum/keV)		Size (mm)
		5.9keV (eV)	122keV (eV)	1.33MeV (keV)		FW.1M /FWHM	FW.02M /FWHM	crystal diameter	crystal thickness	End window diameter
GCDS－10175	10	320	600	1.75	35:1	1.90	2.60	50	25	70
GCDS－15180	15	370	650	1.80	40:1	1.90	2.60	50	44	70
GCDS－20180	20	420	680	1.80	45:1	1.90	2.70	50	60	70
GCDS－25185	25	460	700	1.85	48:1	1.90	2.70	57	60	72
GCDS－30185	30	480	720	1.85	55:1	1.90	2.85	57	62	75
GCDS－35190	35	560	760	1.90	60:1	1.90	2.90	57	65	75
GCDS－40190	40	650	800	1.90	65:1	1.90	2.90	64	60	78
GCDS－50190	50	750	850	1.90	68:1	1.90	2.90	68	73	78
GCDS-60200	60	820	950	2.0	74:1	1.90	3.0	70	80	83
GCDS-70200	70	900	1000	2.0	75:1	1.90	3.0	70	85	83

3、 Liquid Nitrogen Reflux Refrigerator

• model:LN-2
• 30After filling the liquid nitrogen tank with liquid nitrogen, the liquid nitrogen ensures a low temperature environment for the detector in the event of a power outage, ensuring the continuous and normal operation of the system10Heaven;
• One tank of liquid nitrogen can support continuous operation1Over years old;
• Adopting a miniature Stirling cooler, the lifespan of the cooler is greater than20Ten thousand hours;
• Power: Maximum power260W, normal power125W
• Noise: at a distance1Less than meters60Decibel;
• The impact on energy resolution:59.5keVThe relative impact of resolution is less than3%；
• Impact on Death Time: Less than1%；
• Provide status monitoring software, which includes monitoring of liquid nitrogen level, operating pressure, operating power, refrigeration status, liquid nitrogen maintenance time, etc;
• Liquid nitrogen level below48When the hourly maintenance time is maintained, software prompts and sound and light alarms will be issued.

4、 Digital spectrometer

• model:BOSON；
• Screen display:TFTColor touch screen control；
• Communication interface:USB2.0mEthernet,RS-232；
• High voltage output:0~±5000V,0.5mA；
• Input signal polarity:+/-Optional;
• Maximum data pass rate: greater than200kcps；
• Coarse gain adjustment:5,10,20,40,80,160,320,640Optional;
• Fine tuning gain:2；
• Maximum road address:16384；
• Dead time correction,BLRFunction, built-in oscilloscope function, energy spectrum display;
• Forming time constant: rise time from0.8μsto24μsAdjustable, per step0.2μs; Flat top time from0.3to2.4μs, every step0.1μs, selected by the computer (automatically adjusted under automatic optimization function);
• Linear: Integral nonlinearity ≤0.025%Differential nonlinearity≤1%；
• Output stability: Long term drift: ≤0.01%/h；≤0.02%/8h；
• Temperature coefficient: gain<50ppm/°CZero point<3ppm/°C；
• Overload recovery: At maximum gain, it can2.5Within a non overload pulse width of times1000Recovering from overload to rated output2%Within;
• Pulse Anti Stacking: Automatically set threshold, pulse resolution is less than or equal to500ns；
• Signal processing: It has functions such as digital spectrum stabilization, automatic pole zero, and digital gate baseline recovery;
• Data storage:16384Do not lose data storage, each track has a capacity of231-1Counting;
• Memory segmentation (system transformation gain): selected by the computer as16384，8192，4096，2048，1024perhaps512Avenue;
• Digital spectrum stabilization: computer-controlled and stabilized gain and zero point;
• Automatic digital zero adjustment: controlled by a computer, can be manually or automatically set;

• Single or dual channel: providing a single channelMCAAnd ShuangluMCAchoice.

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5、 Spectral analysis software package

• model: GammaSharp；
• GammaSharp has a Chinese/English operating interface and manual, with spectral control, acquisition, analysis, reporting, and quality assurance functions. It can simultaneously obtain multiple spectral data. GammaSharp can run on Windows and is well compatible with Windows 7, Windows 8, and Windows XP. With just one installation, various functions can be achieved:
• Spectrometer control: achievable parameter settings include: fine adjustment of gain, activation of digital spectrum stabilization, adjustment of high voltage, display of real/active time, setting of upper and lower discrimination thresholds, etc;
• It can complete peak searching and peak fitting, and visually observe the effect of peak fitting, interaction analysis, peak area calculation, and background subtractionIn addition, uncertainty analysis, efficiency correction weighted average activity calculation, parent daughter decay correction, explorationMeasure the lower limit(MDA) calculation, cascading conformity addition correction, automatic or manual operation for spectral stripping to correctly correct multi nuclide interference. The software was evaluated using 100 comparative spectra from 16 international laboratories, and the accuracy of the analysis results met the requirements;
• Users can control the selection of multiple preset conditions before conducting measurements, such as specifying MDA, specifying statistical measurements, active time, real time, peak area, and spectral count rate; Users can label peak isotopes forOperator control, calculate average activity, select activity report and MDA report, report output: output reports in TXT, PDF, HTML, XML and other formats.
• Interface: Full Chinese interface or full English interface;

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Laboratory passive efficiency calibration software

• model: GammaCalib V4.0
• Full Chinese/English operating interface, using powerful CAD software for modeling, realizing fast 3D visualization modeling of any shape of volume source. It can use the complete efficiency curve of any series of standard sources from point source/cylindrical (volume source)/planar (surface source)/Marin cup sample source as the benchmark, and calculate the efficiency scale curve of other forms of samples through software deduction;
• Characterization of supporting detectors: The manufacturer provides a point source benchmark efficiency curve before leaving the factory, and the point source is traceable with a factory certificate;
• Accuracy of software: The sample matrix is uniform and the activity is evenly distributed in the sample. With accurate parameter input, the error level is less than 6%;
• Traceability of the method: The calibration source used for the benchmark efficiency curve provided by the software is traceable with a factory certificate, so the measurement results obtained under the method are also traceable.

6、 Lead room

• model:GammaShield-1
• Outer layer material:1cmLow carbon steel;
• Middle layer material:11cmLow background lead4πDirectional shielding, innermost5mmUltra low background lead;
• Inner layer material:0.5mmTin and3 mmOxygen free copper, absorbingXRadiation;
• Pressure bar type top sliding door design;
• Material of load-bearing table: low carbon steel;
• area covered:65cm×65cm；
• Internal cavity size: Φ307mm× 404mm；
• Weight:1.1Ton.

• Background: Relative to40%High purity germanium, environmental background<2.3cps @ 50keV~3MeV.

7、 External conditions that the system adapts to

Temperature: 30 ℃;

Relative humidity: less than 80%

Ground bearing capacity: greater than 1.6 tons

Single phase AC 200~240V/50Hz, reliably grounded