Commodity & Description

HSK NO.	ITEM NO.	Korean Government Commodity Classification Code(eight-digit)	DESCRIPTION	Q'TY	UNIT
9030.10.0000	-	41115414	HPGe based Gamma-ray Spectroscopy System	1	Set

A. End-user's Use

1. This system is HPGe based Gamma-ray spectroscopy system for the purpose of analysis of radioactivity in Sample

B. Configurations of Goods

1. High Purity Germanium(HPGe) Coaxial Detector	1 set

2. Electro-Mechanical Cooling Device	1 set

3. High performance, low background lead shield                                                 1 set

4. Digital Signal Analyzer	1 set

5. Analysis Software	1 set

6. Data Acquisition System (PC & Printer)	1 set

C. Performance and Specification

1. High Purity Germanium(HPGe) Coaxial Detector	1 set

1) P-type Coaxial HPGe Detector

2) Cryostat Device and Detector integrated type

3) Very small effects on the Detector from Electrical Noise and low background and Bias monitoring option included

4) High resolution-good peak shape at low and high energy, excellent timing resolution, high energy rate capability

5) Internal Warm-up/high voltage shutdown automatically to protect detector

6) (D-9 pin) Pre-amplifier with (SHV) bias, H.V. inhibit, (BNC) signal and power cables or integrated cable

7) Relative Efficiency : ≥ 40 %

8) Resolution(FWHM)

- ≤ 0.895 keV at 122 keV

- ≤ 1.90 keV at 1,332 keV

10) Useful energy range : 40 keV to 10 MeV

11) Endcap diameter : ≥ 76 mm

2. Electro-Mechanical Cooling Device

1) Automatic electric cooling systems for the maintenance of HPGe detector

2) LN2-Free Cooling Device

3) Low Power Operation (less than 250W)

4) Noise : Less than 55 dB at 1 meter

5) It should be able to display of current status information of the cooling device.

6) Over 100 keV energy range does not affect detector resolution performance

3. High performance, low background lead shield

1) Shielded cavity dimensions : 27.9 cm i.d. x 40.0 cm high

2) Thickness of lead walls : more than 100mm(4inches)

3) Top opening lead shield

4) Stand material : low-carbon steel

4. Digital Signal Analyzer

1) Stand alone dual 32K digital MCA	1 set

2) Multichannel analyzers based on digital signal processing (DSP) technology

3) Conversion Gain : 512 ～ 16,384 channels

4) Maximum System Throughput : > 100,000 cps

5) Full computer control of every spectrometer function

6) Computer selectable resistive feedback

7) Fastest data transfer capability available with USB 2.0

8) Pulse Pile-Up Rejector : Automatically set threshold

9) Automatic Digital Pole-Zero Adjustment: automatically

10) Suitable for P-Type, N-Type

5. Analysis Software	1 set

1) Complete quantitative and qualitative analysis, integrated acquisition and analysis, fully	independent support of multiple detector inputs, quality assurance, ability to read a variety of data file formats

2) The software shall be based on the Windows 10 or latest version

3) Complete quantitative and qualitative analysis of spectra from HPGe detector

4) The software shall include the following analysis and spectral processing capabilities

- Library directed peak search

- User directed region of interest peak search and summation peak analysis

- Peak net area background subtraction

- Detection Limit Formulas : more than 3

5) The software shall offer comprehensive to monitor the performance of the gamma spectroscopy system

6. Data Acquisition System (PC & Printer)

1) Intel Core i7, 1TB HDD, 8GB Memory, 24" LED Monitor

2) Color laser printer (2400 dpi, 24 ppm)

D. Remarks

1. This system should be delivered within 3 months after receipt of contract.

2. The seller should be responsible for installing the equipment and conducting performance tests at the end-user's site.

3. Warranty must be provided for two years after installation and performance verification.