DAC meaning in Earth Science ?

Answer:

What is Diamond Anvil Cell mean?

A diamond anvil cell (DAC) is a high-pressure device used in geology, engineering, and materials science experiments. It enables the compression of a small (sub-millimeter-sized) piece of material to extreme pressures, typically up to around 100–200 gigapascals, although it is possible to achieve pressures up to 770 gigapascals (7,700,000 bars or 7.7 million atmospheres).

The device has been used to recreate the pressure existing deep inside planets to synthesise materials and phases not observed under normal ambient conditions. Notable examples include the non-molecular ice X, polymeric nitrogen and metallic phases of xenon, lonsdaleite, and potentially hydrogen.

A DAC consists of two opposing diamonds with a sample compressed between the polished culets (tips). Pressure may be monitored using a reference material whose behavior under pressure is known. Common pressure standards include ruby fluorescence, and various structurally simple metals, such as copper or platinum. The uniaxial pressure supplied by the DAC may be transformed into uniform hydrostatic pressure using a pressure-transmitting medium, such as argon, xenon, hydrogen, helium, paraffin oil or a mixture of methanol and ethanol. The pressure-transmitting medium is enclosed by a gasket and the two diamond anvils. The sample can be viewed through the diamonds and illuminated by X-rays and visible light. In this way, X-ray diffraction and fluorescence; optical absorption and photoluminescence; Mössbauer, Raman and Brillouin scattering; positron annihilation and other signals can be measured from materials under high pressure. Magnetic and microwave fields can be applied externally to the cell allowing nuclear magnetic resonance, electron paramagnetic resonance and other magnetic measurements. Attaching electrodes to the sample allows electrical and magnetoelectrical measurements as well as heating up the sample to a few thousand degrees. Much higher temperatures (up to 7000 K) can be achieved with laser-induced heating, and cooling down to millikelvins has been demonstrated.

reference

Full Form	Category
Distance, Amplitude, Correction	Academic & Science
Dial Architectural Components	Academic & Science
Data Assembly Center	Academic & Science
Dean Advisory Council	Academic & Science
Deferred Acquisition Cost	Accounts and Finance
Dhaka	Airport Code
Discounted Asset Coverage	Banking
Direct Action Company	Business
Daily Average Consumption	Business
Drone Advisory Committee	Business
Driver Advisory Council	Business
Diplomate in Acupuncture	Business
Decisive Analytics Corporation	Business
Distributed Autonomous Company	Business
Art Consulting	Business
Douglas Aircraft Corporation	Business
Drug Affinity Complex	Chemistry
Digital Audio Copy	Community
Drivers And Carriers	Community
District Accountability Committee	Community
Developing Active Communities	Community
Development Assessment Committee	Community
Dense Asphaltic Concrete	Community
Durham Arts Council	Community
Danville Area Community	Community
Downtown Art Center	Community
DeSoto Athletic Club	Community
Downtown Athletic Club	Community
Denver Athletic Club	Community
Design Automation Conference	Community
Dead Artist Content	Community
District Advisory Committee	Community
Detective Agency Club	Community
D/A Converter	Computer and Networking
Declare Address Constant	Computer Assembly Language
Dual Address Cycle	Computer Hardware
Digital Audio Comunicator	Computer Hardware
Digital-to-analog Conversion	Computer Hardware
Development of Advanced Computing	Computing
Data Access Components	Computing
Digital Analog Converter	Computing
Dual Attachment Concentrator	Computing
Digital Adapter Circuit	Computing
Data Administration Council	Computing
Dual Attachment Connector	Computing
Disk Array Controller	Computing
Digital Access Controller	Computing
Director Administration Console	Computing
Digital Art Community	Computing
Digital Art Center	Computing
Domestic Access Code	Computing
Direct Attach Cable	Computing
Davinci Coin	Cryptocurrency
Degen Arts	Cryptocurrency
Degen Ape Club	Cryptocurrency
Diamond Anvil Cell	Earth Science
Dual Attached Concentrator	Electronics
Sound (ti/mit Dac Format) (byte Reversed Adc File)	File Type
Datasource Access Components	General
Dynamic Application Chart	General
Document Appearance Characterization	General
Drive Attitude Confidence	General
Driving Airbus Crazy	General
Data Availability Codes	General
Developmental Achievement Center	General
Digital To Anolog Conversion	General
David Allen Carter	General
Digital To Anolouge Converter	General
Digital To Audio Converter	General
Digital to Analog Converters	General
Discretionary Access Controls	General
Dignity And Coldness	General
Design Am Chiemsee	General
Direct Administrative Costs	General
Download Access Code	General
Disciplined Agile Coach	General
Dash And Crash	General
Digital to Analogue Converter	General
Driver Alert Control	General
Digital Air Conditioning	General
Drive Away Chassis	General
Durban Automotive Cluster	General
Dartz Armoured Cars	General
Dual Air Conditioning	General
Driving After Cancellation	General
Dearborn Automobile Company	General
Detroit Automobile Company	General
Deutscher Automobil Club	General
Dealer Assistance Center	General
Detroit Air Cooled Car Company	General
Daimler Armoured Car	General
Driver Authority Card	General
Diesel Auto Camion	General
District Audi Club	General
Decision Assistance Curves	General
Dedicated Administrator Connection	General
Distributed Autonomous Corporations	General
Deal Acquisition Central	General
Drive A CheckA	General
Districtus Austriae Controllatus	General
Designated Assessment Centre	General
Drive A Check	General
D/A Converters	General
Doing A Chu	General
Datacentre Activation Coordination	General
Distributed Adaptive Control	General
Digital Analougue Converter	General
A Digital Audio Conversion	General
Districtus Austriae Controllatus (wine)	General
Deutche Alternative Charts	General
Data Access Chain	General
District Advisory Council	Governmental
Derived Air Concentration	Governmental
Desert Advisory Council	Governmental
Development Assistance Committee	Governmental
Disability Action Council	Governmental
Department of Agriculture & Cooperation	Governmental
Division of of Analytical Chemistry	Governmental
Deferred Acquisition Costs	Governmental
Deputy Assistant Commissioner	Governmental
DAHINSARA JN	Indian Railway Station
Digital-To-Analog Converter	Information Technology
Discretionary Access Control	Information Technology
Destacamentos Armados Carros	International
Direct Air Charger	Internet
Disability Advisory Committee	Medical
Disaster Assistance Center	Medical
Dispening Alliance Contractors	Medical
Dry Air Challenge	Medical
Disabilities Advisory Council	Medical
Disabled Adult Child	Medical
Designated Acquisition Commanders	Military and Defence
Department of The Army Civilian	Military and Defence
Deputy Assistant Commandant	Military and Defence
Days After Contract	Military and Defence
Date of Award of Contract	Military and Defence
Discriminating Attack Capability	Military and Defence
Dia (defense Intelligence Agency) Counterintelligence and Security Activity	Military and Defence
Department of Army Civilian	Military and Defence
Deutsche Alternative Charts	News & Entertainment
Diamond Anvil High Pressure Cell	Physics Related
Digital Acoustic Coding	Softwares
Dynamic Adaptive Compiler	Softwares
Data Acquisition and Control	Space Science
Data Acquisition Camera	Space Science
Diversity Awareness Committee	Space Science
Drive, Attitude, and Confidence	Sports
Dakota Athletic Conference	Sports
Detroit Athletic Club	Sports
Dahinsara Junction	Transport & Travel
Hazrat Shahjalal International Airport	Transport & Travel