Mirion Technologies CR39 Neutron Detection User Manual
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CR 39 NEUTRON
Complete monitoring for intermediate and fast 
neutron detection 
In facilities where employees work with neutron 
generators, linear accelerators or cyclotrons, CR39 
Neutron provides accurate exposure determination. 
The CR39 may be used separately for neutron detection, 
or in conjunction with a TLD whole body. Exposure to 
neutrons cannot be detected by film and requires a 
specific calibration for TLD dosimeters. A computer-
controlled system provides objective, error-free dose 
assessment and establishes a permanent record of 
exposure.
Unlike TLD, the CR39 Neutron Dosimeter is energy 
independent and a practical and convenient way to 
accurately monitor exposure to intermediate and fast 
neutron radiation. 
REMTRACK™ WALLET CARD
Emergency monitoring convenience
The REMtrack™ wallet card is a personal radiation 
dosimeter. These wallet cards are extensively used by 
counter-terrorism operations, law enforcement and other 
personnel who encounter radiation emergency situations. 
REMtrack consists of natural lithium fluoride chips 
positioned between high quality paper and polyethylene 
laminate material. Its unique bar-code identification 
system displays an individual’s name, unique card 
number; plus issue and expiration dates, and offers an 
accurate chain-of-custody through the analysis process.
CR39 NEUTRON FEATURES
•	 Can	be	combined	with	a	dosimeter or used alone
•	 Energy	independent
•	 Responds	to	intermediate	and	fast	neutrons
•	 Accurate	image	analysis	counting	system
•	 Energy	spectrum	analysis	is	capable	if	used	in	
conjunction with a TLD dosimeter
•	 Wear	periods	from	one	week	to	one	year
•	 Computer-controlled	automatic	counting	system	
provides objective, error-free dose assessments,
and establishes a permanent record of exposure
REMTRACK WALLET CARD FEATURES
•	Bar-coded	for	user	identification	and	tracking
•	 Whole	body	dosimeter
• Convenient credit card size
•	 Can	be	customized	with	company	logo
•	 Second	chip	option
•	 Choice	of	wallet	card	or	clip-on	badge
ENVIRONMENTAL TLD FEATURES
•	Thermoluminescent	dosimeter	element
•	 Outdoor	usage
• Responds to intermediate and fast neutrons
•	 Polypropylene	holder	and	tamper-resistant	pouch
•	 Variety	of	holder	options	available
LEAK TEST FEATURES
•	Easy	to	use	kit
•	 Automatic	reorder	or	on-demand	reorder
• Easy to follow instructions
•	 Contamination	protection	provided
