For low level applications
The Hidex 300 SL is a revolutionary instrument with compact size, incorporating the most advanced triple-PMT detector technology facilitating: exceptionally high counting efficiency, luminescence free counting mode, and absolute activity counting without external radioactive source using triple-to-double coincidence ratio (TDCR) method.
For low level applications
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 3H in water measurements as well as other low-level environmental monitoring, radiocarbon dating and biofuel verification applications.
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 is a proprietary Hidex spectral fitting algorithm that improves counting performance by utilizing spectrum information for active sample tritium counts and background counts.
³H & 14C in natural waters
ground water dating (³H)
90Y/90Sr
gross alpha/beta
biobased 14C
low level alphas
55Fe, 66Ni
3H & 90Sr radiobioassays
Sample capacity, 20mL/7mL | 40/96 |
Counting efficiency ³H/¹⁴C (%) | 70/96 |
Background ³H in water (CPM) | 3 |
Dimensions, W/H/D (cm) | 52/68/63 |
Weight (kg) | 180 |
525-003 alpha/beta separation
462-019 External Eu-152 std source
425-2003 Cooling
All the measurements are performed at temperature of 22°C ± 2°C and at normal humidity conditions of Hidex laboratory, Turku, Finland (relative humidity not measured). Background may vary locally depending on natural environmental radiation.
Counting efficiency typical > 70% for ³H and typical > 96% for ¹⁴C with unquenched samples.
> 35% for ³H quenched (8 mL water sample + 12 mL AquaLight cocktail)
α’s (210Po, 234U/238U, 241Am, 222Rn, 226Ra) > 95 %
3 CPM with 8 mL water + 12 mL AquaLight Low Level cocktail. *Background value measured using window with 25% counting efficiency.
< 0.3 CPM for alphas (with a/b separation option)
³H in water 8 + 12 ml, optimized window | > 220 |
³H in water 8 + 12 ml, with Digital Pb shield | > 300 |
³H unquenched Low Level standards, optimized window | > 350 |
¹⁴C unquenched Low Level standards, optimized window | > 1150 |
¹⁴C Benzene 3.5 ml in a mini glass vial | > 2000 |
Read more about Hidex Methods
Hidex’s long-standing customer, Radsol, has been a pioneer in Korea’s radioactivity measurement industry, serving customers with radiochemical analysis of environmental and nuclear decommissioning samples.
Read moreThe National Radiation Protection Institute (NRPI), Prague continues to trust Hidex’s radiation detection equipment for needs of the Czech regulatory body (SÚJB) and for research studies.
Read more1 / 2