Σπίτι ❯ Ολα Ορισμοί ❯ Μονάδα ❯ Roentgen (r) Ορισμός μονάδας
Roentgen (r) Ορισμός μονάδας
The roentgen or röntgen is a legacy unit of measurement for radiation exposure. It measures the radiation of X-rays and gamma rays, and is defined as the electric charge freed by such radiation in a specified volume of air divided by the mass of that air. It is equivalent to the statcoulomb (statC) per kilogram (kg) or statC/kg. The roentgen is represented by the symbol R.
In 1928, the roentgen was adopted as the first international measurement quantity for ionizing radiation to be defined for radiation protection. At the time it was the most easily replicated method of measuring air ionization by using ion chambers.
It is named after the German physicist Wilhelm Röntgen, who discovered X-rays and was awarded the first Nobel Prize in Physics for his discovery.
SI Multiples
A table of various radiation exposure roentgen derived from SI multiples:
Submultiples |
Multiples |
||||||
Scientific Notation |
αξία |
Πρόθεμα |
Ονομα |
Scientific Notation |
αξία |
Πρόθεμα |
Ονομα |
10-1 R |
0.1 R |
Deci (δ) | Deciroentgen (DR) | 101 R |
10 R |
DECA (DA) | DeCaroentgen (DAR) |
10-2 R |
0.01 R |
Centi (c) | Centiroentgen (CR) | 102 R |
100 R |
Hecto (H) | Hectoroentgen (HR) |
10-3 R |
0.001 R |
Milli (m) | Milliroentgen (MR) | 103 R |
1000 R |
Kilo (k) | Kiloroentgen (KR) |
10-6 R |
0.000001 R |
Μικρο (μ) | Microroentgen (μR) | 106 R |
1000000 R |
Mega (m) | Megaroentgen (MR) |
10-9 R |
0.000000001 R |
Νανο (n) | Nanoroentgen (nR) | 109 R |
1000000000 R |
Giga (g) | Gigaroentgen (gr) |
10-12 R |
0.000000000001 R |
Pico (p) | Picoroentgen (PR) | 1012 R |
1000000000000 R |
Tera (t) | Teraroentgen (TR) |
10-15 R |
0.000000000000001 R |
Femto (f) | Femtoroentgen (FR) | 1015 R |
1000000000000000 R |
PETA (P) | Petaroentgen (PR) |
10-18 R |
0.000000000000000001 R |
Atto (α) | AttoroentGen (AR) | 1018 R |
1000000000000000000 R |
Exa (ε) | Exaroentgen (ER) |
10-21 R |
0.000000000000000000001 R |
Zepto (z) | Zeptoroentgen (zr) | 1021 R |
1000000000000000000000 R |
Zetta (z) | Zettaroentgen (zr) |
10-24 R |
0.000000000000000000000001 R |
Yocto (y) | Yoctoroentgen (έτος) | 1024 R |
1000000000000000000000000 R |
Yotta (y) | Yottaroentgen (έτος) |
10-27 R |
0.000000000000000000000000001 R |
Ronto (r) | Rontoroentgen (rR) | 1027 R |
1000000000000000000000000000 R |
Ronna (R) | Ronnaroentgen (RR) |
10-30 R |
0.000000000000000000000000000001 R |
Quecto (q) | Quectoroentgen (qR) | 1030 R |
1000000000000000000000000000000 R |
Quetta (Q) | Quettaroentgen (QR) |
Other Radiation Exposure Unit Definitions
Abcoulomb (ABC)
- Attocoulomb (AC)
- Attoparker (Aparker)
- Attorep (AREP)
- AttoroentGen (AR)
- Centicoulomb (cc)
- Centiparker (CPARKER)
- CENTIREP (CREP)
- Centiroentgen (CR)
- Coulomb (c)
Coulomb International (C)
- Decacoulomb (DAC)
- Decaparker (daparker)
- Decarep (Darep)
- DeCaroentgen (DAR)
- Decicoulomb (DC)
- Deciparker (dparker)
- (DREP)
- Deciroentgen (DR)
- Dekacoulomb (DAC)
- DeKaparker (Daparker)
- Dekarep (Darep)
- Dekaroentgen (dar)
Ηλεκτρονικό φορτίο (Q)
- Exacoulomb (ΕΚ)
- Exaparker (Eparker)
- Exarep (EREP)
- Exaroentgen (ER)
Faraday Constant (F)
- Femtocoulomb (FC)
- Femtoparker (fparker)
- Femtorep (FREP)
- Femtoroentgen (FR)
Franklin (FR)
- Gigacoulomb (GC)
- Gigaparker (Gparker)
- Gigarep (Grep)
- Gigaroentgen (gr)
- Hectocoulomb (HC)
- Hectoparker (Hparker)
- Hectorep (HREP)
- Hectoroentgen (HR)
- Kilocoulomb (KC)
- Kiloparker (Kparker)
- Kilorep (KREP)
- Kiloroentgen (KR)
- Megacoulomb (MC)
- Megaparker (mparker)
- Megarep (MREP)
- Megaroentgen (MR)
- Μικροκούλη (μC)
- Microparker (μparker)
- Microrep (μrep)
- Microroentgen (μR)
- Millicoulomb (MC)
- Milliparker (Mparker)
- Millirep (MREP)
- Milliroentgen (MR)
- Νανοκούμβιος (NC)
- Nanoparker (NPARKER)
- Nanorep (NREP)
- Nanoroentgen (nR)
- Parker (Parker)
- Petacoulomb (PC)
- Petaparker (PPARKER)
- Petarep (προετοιμασία)
- Petaroentgen (PR)
- Picocoulomb (PC)
- Picoparker (pparker)
- Picorep (prep)
- Picoroentgen (PR)
- Quectocoulomb (qC)
- Quectoparker (qparker)
- Quectorep (qrep)
- Quectoroentgen (qR)
- Quettacoulomb (QC)
- Quettaparker (Qparker)
- Quettarep (Qrep)
- Quettaroentgen (QR)
- Rep (rep)
- Roentgen (r)
- Ronnacoulomb (RC)
- Ronnaparker (Rparker)
- Ronnarep (Rrep)
- Ronnaroentgen (RR)
- Rontocoulomb (rC)
- Rontoparker (rparker)
- Rontorep (rrep)
- Rontoroentgen (rR)
Statcoulomb (statc)
- Teracoulomb (TC)
- Teraparker (tparker)
- Terarep (trep)
- Teraroentgen (TR)
Ιστός roentgen (r)
- Yoctocoulomb (yc)
- Yoctoparker (yparker)
- Yoctorep (yrep)
- Yoctoroentgen (έτος)
- Yottacoulomb (yc)
- Yottaparker (Yparker)
- Yottarep (Yrep)
- Yottaroentgen (έτος)
- Zeptocoulomb (zc)
- Zeptoparker (Zparker)
- Zeptorep (ZREP)
- Zeptoroentgen (zr)
- Zettacoulomb (zc)
- Zettaparker (Zparker)
- Zettarep (ZREP)
- Zettaroentgen (zr)
Convert to Another Radiation Exposure Unit
Σχετικοί ορισμοί
Αποποίηση ευθυνών
Αν και έχει καταβληθεί κάθε δυνατή προσπάθεια για τον έλεγχο αυτού του μετατροπέα μονάδας, δεν πρέπει να θεωρούνται υπεύθυνοι για τυχόν ειδικές, παρεμπιπτόντες, έμμεσες ή επακόλουθες ζημίες ή νομισματικές απώλειες οποιουδήποτε είδους που προκύπτουν από ή σε σχέση με τη χρήση οποιουδήποτε από τα εργαλεία μετατροπέα και πληροφορίες που προέρχονται από αυτόν τον ιστότοπο. Αυτός ο μετατροπέας μονάδας παρέχεται ως υπηρεσία σε εσάς, χρησιμοποιήστε με δική σας ευθύνη. Μην χρησιμοποιείτε υπολογισμούς για τίποτα όπου η απώλεια ζωής, τα χρήματα, η ιδιοκτησία κ.λπ. θα μπορούσε να προκύψει από ανακριβείς μετατροπές μονάδων.
For more information: please see our full disclaimer.
Πηγές
“Roentgen (Unit).” Wikipedia, Wikimedia Foundation, 4 Sept. 2023, en.wikipedia.org/wiki/Roentgen_(unit).