Hidex 300SL SLL LSC
The Hidex 300 SL super low-level scintillation counter is equipped with additional lead shielding, low level PMT detectors and an active guard detector for further background reduction. The instrument is ideal for H-3 in water measurements as well as other low-level environmental monitoring, radiocarbon dating and biofuel verification applications.
Key Features
Active Guard
The advanced Active Guard is a separate scintillator detector which detects and subtracts real-time background radiation. The guard can be turned off for high energy samples and does not interfere with alpha/beta separation.
Digital Pb shield
Digital Pb shield is a proprietary Hidex spectral fitting algorithm that improves counting performance by utilizing spectrum information for active sample tritium counts and background counts.
TDCR Technology
Uses triple-to-double coincidence ratio (TDCR) counting with three PMTs for absolute counting efficiency without external standards. It’s versatile for both chemical and color quenching across various samples and effective for beta isotopes and Cherenkov radiation.
Luminescence-Free Counting
Operates in triple coincidence mode, eliminating chemiluminescence interference and allowing immediate counting of samples like 14C without dark adaptation.
High Efficiency
With PMTs aligned at 120°, it provides superior detection geometry, especially under high quenching.
Efficiency Example for H-3 (20 ml Vials)
Unquenched: >70%
H-3 in water: >35%
High quench: 10%
H-3 in water: >35%
High quench: 10%
Alpha/Beta Separation
Advanced separation capability allows sensitive alpha detection in high beta environments, reducing misclassification errors.
User-Friendly Software
Operated via MikroWin 300 SL software on Windows 10+, featuring an intuitive interface, multi-user support, and 21 CFR Part 11 compliance.
Technical Specifications
Sample capacity, 20mL/7mL
40/96
Counting efficiency H-3/C-14 (%)
70/96
Background H-3 in water (CPM)
3
Dimensions, W/H/D (cm)
52/68/63
Weight (kg)
180
Options
525-003 alpha/beta separation
462-019 External Eu-152 std source
425-2003 Cooling