Thallium-doped sodium iodide NaI(Tl) is the most commonly used spectroscopic scintillation gamma-ray detector material. Detectors based on this material have energy resolution perhaps 45 to 50 times worse than typical HPGe detectors, but they offer the benefit of lower cost, potentially larger sizes and room temperature operation. More recently, Lanthanum Halide based scintillators have become available, offering much improved energy resolution. (On the order of a factor two over NaI(Tl).) While neither type offers energy resolution comparable to HPGe, it is the needs and constraints of the application which define the optimum choice of spectroscopic gamma-ray detector.

More about Scintillation Detectors. . .

Electronic Hardware  The essence of a spectroscopic photon detector is that it provides an output pulse which is proportional to and ideally in linear proportion to the energy of the gamma ray detected. After suitable amplification and noise filtering, this pulse can be “histogrammed” in a multichannel analyzer to create the familiar gamma-ray spectrum. ORTEC offers a wide range of both modular and integrated electronics to support these requirements as well as an exciting range of “ALL-IN-ONE” gamma spectrometers.   More about Multichannel Analyzers. Gamma Spectroscopy Software Software specifically designed to meet the needs of the application in hand is a key element of a good measurement system. ORTEC offers a wide range of hardware in the form of radiation detector and data acquisition systems. It is often the application software which turns the “hardware into the solution”, and ORTEC has software covering a broad spectrum of nuclear measurement applications, often providing integrated hardware control, display and analysis in a single package. General purpose MCA software for a wide variety of uses: MAESTRO-32 Counting Laboratory and Health Physics Applications Advanced Gamma Spectroscopy with HPGe Detectors: GammaVision-32 Advanced Scintillation Detector Spectrometry: ScintiVision-32 Alpha Spectrometry with Si Charged Particle Detectors: AlphaVision-32 Custom Report Generators Counting Lab Automation products Efficiency Transfer (ET) Calibration Codes: ANGLE-B32 Nuclide Library Data Base Manager: Nuclide Navigator Whole Body Counting with NaI and Ge Detectors: Renaissance-32 Waste Assay and Nuclear Safeguards In Situ Spectroscopy for site characterization and containerized waste: ISOPLUS-B32 Isotopic Ratio Determination of U and Pu (LLNL License): MGA-B32 Isotopic Ratio Determination of U and Pu (LANL License): PC/FRAM-B32 UF6 Cylinder Verification Nuclear Materials Holdup: HMS-4 Neutron Safeguards Applications: INCC-B32 Homeland Security Chemical Weapons Identification: PINS Radionuclide Search System: NaI-SS-B32 Detective® Indentifier codes Portal Monitor Codes Neutron Source Identification: Fission Meter Developer Support “CONNECTIONS” MCA Communications Toolkit: A11-B32 Analysis Results Toolkit: A12-B32 More about ORTEC Applications Software. . . All-in-One-Spectrometers The all-in-one HPGe Gamma Spectrometer is a recent and growing innovation from ORTEC. Our rapid development of electromechanical cooling for these systems has been the enabling technology.     An all-in-one integrated HPGe spectrometer offers great benefits in many applications: No liquid nitrogen coolant required Simplicity of operation Compact Size Possible Portability Increased reliability due to fewer interconnecting cables Thermally efficient Stirling coolers reduce waste heat Interchangeable Detector Module (IDM) Ideal for applications such as waste assay and portal monitoring systems. Large area 85 mm x 30 mm HPGe crystal. High-reliability Stirling cycle cooler cools rapidly to operating temperature. Hardened cryostat designed for long operational life. Can be temperature cycled at any time, even from partial warm up. High performance, digitally stable signal processing. “Hot swap” of IDM modules while in operational state – reduced downtime. USB 2.0 data communications. Continuous data collection, no dead spots, using list mode. Low power consumption. Low Frequency Rejector (LFR) improves spectrum resolution in noisyenvironments. Download the IDM data sheet. Micro-trans-SPEC  The quality of a laboratory HPGe spectrometer in a convenient field-proven package.  Amazingly light 15 lb (6.8 kg). Tough — Enclosure, Display, and all connections sealed against moisture and dust.Water spray resistant. High Sensitivity — 50mm Ø x 30mm HPGe detector. High Stability — Digital electronics. Bright and Clear — VGA display with touch sensitive operator screen. Smart — On board ROI-based Nuclide ID and activity calculation. Well Connected — USB 2.0 and Wireless 802.11, GPS, and SD card storage of acquired spectra. Flexible — Multiple choice of power sources: internal and external battery, automobile power, line power; all with automatic switchover. No LN2 Required — Miniature, high-efficiency, "run for ever" Stirling-cycle cooler; detector element is sealed in a high-reliability, low-loss cryostat. Download the Micro-trans-SPEC data sheet. trans-SPEC-DX-100T In-situ High Purity Germanium (HPGe) gamma spectroscopy, in a digital, battery powered instrument. No LN2 — Miniature, high-reliability, "run for ever" Stirling-cycle cooler eliminates the need for LIQUID NITROGEN; detector element is encapsulated in high reliability, low loss, all-metal sealed cryostat. High Sensitivity — Large (>40% relative efficiency) HPGe detector. High Stability — Digital electronics give you the solution for the toughest analysis in the toughest conditions. Bright and Clear — VGA resolution display with touch sensitive operator screen. All-in-one Integrated Package — Rugged and compact with no interconnections — easy to setup and go. Smart — Nuclide ID and activity calculation for nine Regions of Interest (ROI). Well Connected — USB 2.0 and Wireless 802.11 Communications, built-in GPS, and Secure Digital Input/Output (SDIO) storage of acquired spectra. Flexible — A variety of power sources can be used, including internal battery, supplemental external battery, automobile battery (any 12 V dc), and line power; all with automatic switchover. Download the trans-SPEC-DX-100T data sheet.